Tank T 4 close-up. Medium tank T-IV Panzerkampfwagen IV (PzKpfw IV, also Pz

6-04-2015, 15:06

Good day to all! The ACES.GG team is with you, and today we will talk about the German fifth-tier medium tank Pz.Kpfw. IV Ausf. H. Consider its weak and strengths, we will analyze the performance characteristics, as well as the methods and tactics of using this vehicle in battle.

German medium tank of the fifth level Pz.Kpfw. IV Ausf. H can be opened using the fourth level medium tank Pz.Kpfw. IV Ausf. D for 12,800 experience, as well as with the help of a light tank of the fourth level Pz.38 nA, but for 15,000 experience. It will cost 373,000 credits at the time of purchase.

Let's look at the performance characteristics of the Pz.Kpfw. IV ausf. H

Pz. IV H has an average strength point at its level of 480. Of course, this is not very much, but if you do not waste them, it is quite enough. The dynamics of the tank are acceptable and do not cause any particular discomfort. The tank reaches its 40 km/h quite well. If we talk about armor, the tank’s armor is not the best, especially in the rear and on the sides. But the tank can easily take a hit, with correct use, from cars of their level and below. The machine also has an acceptable visibility at its level, which is 350 meters.

Pz.Kpfw guns. IV ausf. H

Now let's talk about guns; the tank has three to choose from.

The first is the 7.5 cm Kw.K gun. 40 L/43. It is given to us in the stock configuration of the tank at the time of purchase. This weapon has no special advantages, not counting its rate of fire. But we will have to play with him until we open one of the following weapons.

The second gun is 7.5 cm Kw.K. 40 L/48. This is what can be considered the top tank for this tank, of course, if you are not a fan of high explosives. This weapon has acceptable armor penetration for its level. Not the best, but still good accuracy, as well as a good rate of fire. The average damage per shot is 110 units, which is not too much, but I repeat that for its level this is a completely acceptable indicator.

And the third gun is 10.5 cm Kw.K. L/28. The main advantage of this weapon is its cumulative projectiles. Penetration is 104 mm, which is quite enough to annihilate most of the enemies that the Pz.Kpfw will encounter. IV Ausf. H. Also, don’t forget about landmines, with their help we can destroy lightly armored targets with one shot. Do not forget that this weapon has very poor accuracy, so it is advisable to always aim until the end.

Equipment on Pz.Kpfw. IV ausf. H

Standard for me and standard for many medium tanks

medium-caliber gun rammer, improved ventilation and reinforced aiming drives.

Skills and abilities of the Pz.Kpfw crew. IV ausf. H

Standard and good choice will:

Commander - Sixth Sense, Repair, Brotherhood.
Gunner - Repair, Smooth rotation of the turret Combat Brotherhood.
Driver - Repair, Smooth ride, Combat brotherhood.
Radio operator - Repair, Radio interception, Combat brotherhood.
Loader - Repair, Non-contact ammo rack, Combat brotherhood.

My choice:

Selection of Pz.Kpfw equipment. IV ausf. H

Here is another standard, namely: a small repair kit, a small first aid kit and a hand-held fire extinguisher. I advise you to use premium equipment, which is quite expensive, but can significantly increase the survivability of your vehicle in battle. So feel free to equip your tank with a large repair kit, a large first aid kit and an automatic fire extinguisher. You can also use a chocolate bar instead of an automatic fire extinguisher.

Tactics and style of play of Pz.Kpfw. IV ausf. H

Tactics for playing Pz. IV H depends on what levels of tanks you have to fight with.

Pz.Kpfw. IV ausf. H in the top

On Pz. IV H in the top, it is best to take a good position at a medium or long distance at the beginning of the battle and shoot enemies caught in the light. You can also take part in a rush, if one is planned. The main thing to consider is that there should be allies next to you who can cover you, as well as shelters behind which you can go after the shot to reload. Thanks to the rate of fire of a 7.5 cm gun, you can inflict quite good damage on the enemy, and with a 10.5 cm gun you can destroy lightly armored tanks with one shot. The main thing with all this is to try not to expose yourself to enemy shots

Pz.Kpfw. IV ausf. H vs sixth levels

In battles against sixth levels, you can also act aggressively or passively. With an aggressive play style, you can support the allied rush by shooting at enemies from behind your allies, or simply start highlighting enemy tanks for allied vehicles. And with a passive style, you will need to take a place in the bushes and shoot damage at enemies caught in the light. Most importantly, we will need to avoid vehicles with high average damage per shot, such as the KV-2, KV-85 with a 122 mm gun and the like. After all, if they don’t kill us with one shot, they will cripple us for the rest of the battle.

Pz.Kpfw. IV ausf. H vs. seventh levels

We will have nothing to do against the seventh levels on the front line, so it would be best to act from behind the backs of our allies on the second or third line. This way we will be able to deal damage to enemies without receiving it ourselves, because many level seven tanks will kill us in one or two shots. Well, if you don’t like this kind of gameplay, then you can try to carefully move forward towards fate, which will decide whether you will bend over or just merge. But seriously, on the first line we will need to act extremely carefully, because if something happens we will simply turn into an easy frag. Therefore, this tactic is extremely risky, but if done correctly, it can bear fruit.

Well, most importantly, in any battle you will need to be able to correctly analyze the map, team compositions, and the travel of your allies. Based on the analysis, it is already worth choosing tactics and the direction in which you will act. Also, do not forget to look at the minimap, so that if something happens, you can promptly move to one direction or another where our help will be needed.

Bottom line

Pz. IV H is a typical representative of medium tanks at its level, which are quite well balanced and provide a lot of pleasant impressions when playing them. The tank has quite good potential, thanks to which it will be possible to influence the outcome of the battle. Also Pz. IV H, like many fifth-level machines, is capable of farming credits quite well and bringing its owner a lot of pleasure from playing on it.

(Pz.III), power point located at the rear, and the power transmission and drive wheels at the front. The control compartment housed the driver and gunner-radio operator, firing from a machine gun mounted in a ball joint. The fighting compartment was located in the middle of the hull. A multifaceted welded turret was mounted here, which housed three crew members and installed weapons.

T-IV tanks were produced with the following weapons:

• modifications A-F, assault tank with 75 mm howitzer;
• modification G, tank with a 75-mm cannon with a 43-caliber barrel;
• modification NK, tank with a 75-mm cannon with a barrel length of 48 calibers.

Due to the constant increase in the thickness of the armor, the weight of the vehicle during production increased from 17.1 tons (modification A) to 24.6 tons (modifications NK). Since 1943, to enhance armor protection, armor screens were installed on tanks for the sides of the hull and turret. The long-barreled gun introduced on modifications G, NK allowed the T-IV to withstand enemy tanks of equal weight (a 75-mm sub-caliber projectile at a range of 1000 meters penetrated armor 110 mm thick), but its maneuverability, especially the overweight latest modifications, was unsatisfactory. In total, about 9,500 T-IV tanks of all modifications were produced during the war.

When the Pz.IV tank did not yet exist

Tank PzKpfw IV. History of creation.

In the 20s and early 30s, the theory of the use of mechanized troops, in particular tanks, developed through trial and error; the views of theorists changed very often. A number of supporters of tanks believed that the appearance of armored vehicles would make positional warfare in the style of battles of 1914-1917 tactically impossible. In turn, the French relied on the construction of well-fortified long-term defensive positions, such as the Maginot Line. A number of experts believed that the main armament of a tank should be a machine gun, and the main task of armored vehicles is to fight enemy infantry and artillery; the most radically thinking representatives of this school considered a battle between tanks pointless, since, supposedly, neither side would be able to cause damage to the other. There was an opinion that the victory in the battle would be won by the side that could destroy the largest number of enemy tanks. Special guns with special shells - anti-tank guns with armor-piercing shells - were considered as the main means of fighting tanks. In fact, no one knew what the nature of hostilities would be in a future war. The experience of the Spanish Civil War also did not clarify the situation.

The Treaty of Versailles prohibited Germany from having tracked combat vehicles, but could not prevent German specialists from working on studying various theories of using armored vehicles, and the creation of tanks was carried out by the Germans in secrecy. When Hitler threw away the restrictions of Versailles in March 1935, the young Panzerwaffe already had all the theoretical developments in the field of application and organizational structure tank regiments.

In mass production under the guise of "agricultural tractors" there were two types of light armed tanks, PzKpfw I and PzKpfw II.
The PzKpfw I tank was considered a training vehicle, while the PzKpfw II was intended for reconnaissance, but it turned out that the “two” remained the most popular tank of the panzer divisions until it was replaced by the PzKpfw III medium tanks, armed with a 37 mm cannon and three machine guns.

The development of the PzKpfw IV tank dates back to January 1934, when the army issued a specification to industry new tank fire support weighing no more than 24 tons, the future vehicle received the official designation Gesch.Kpfw. (75 mm)(Vskfz.618). Over the next 18 months, specialists from Rheinmetall-Borzing, Krupp and MAN worked on three competing designs for the battalion commander's vehicle (Battalionführerswagnen, abbreviated as BW). The VK 2001/K project, presented by the Krupp company, was recognized as the best, with a turret and hull shape similar to the PzKpfw III tank.

However, the VK 2001/K did not go into production, since the military was not satisfied with the six-wheel chassis with medium-diameter wheels on a spring suspension; it needed to be replaced with a torsion bar. The torsion bar suspension, compared to the spring one, ensured smoother movement of the tank and had a greater vertical travel of the road wheels. Krupp engineers, together with representatives of the Arms Procurement Directorate, agreed on the possibility of using an improved design of spring suspension on the tank with eight small-diameter road wheels on board. However, the Krupp company largely had to revise the proposed original design. In the final version, the PzKpfw IV was a combination of the hull and turret of the VK 2001/K with a chassis newly developed by Krupp.

When the Pz.IV tank did not yet exist

The PzKpfw IV tank is designed according to the classic layout with a rear engine. The commander's position was located along the axis of the tower directly under the commander's cupola, the gunner was located to the left of the breech of the gun, and the loader was to the right. In the control compartment, located in the front part of the tank hull, there were workstations for the driver (to the left of the vehicle axis) and the radio operator (to the right). Between the driver's and gunner's seats there was a transmission. Interesting feature The design of the tank was to shift the turret approximately 8 cm to the left of the longitudinal axis of the vehicle, and the engine - 15 cm to the right to allow passage of the shaft connecting the engine and transmission. This design decision made it possible to increase the internal reserved volume on the right side of the hull to accommodate the first shots, which could be most easily reached by the loader. The turret rotation drive is electric.

Click on the tank picture to enlarge

The suspension and chassis consisted of eight small-diameter road wheels grouped into two-wheeled bogies suspended on leaf springs, drive wheels, sloths installed in the rear of the tank, and four rollers supporting the track. Throughout the entire history of operation of the PzKpfw IV tanks, their chassis remained unchanged, only minor improvements were introduced. The prototype of the tank was manufactured at the Krupp plant in Essen and was tested in 1935-36.

Description of the PzKpfw IV tank

Armor protection.
In 1942, consulting engineers Mertz and McLillan conducted a detailed examination of the captured PzKpfw IV Ausf.E tank, in particular, they carefully studied its armor.

Several armor plates were tested for hardness, all of them were machined. The hardness of the machined armor plates on the outside and inside was 300-460 Brinell.
- The 20 mm thick applied armor plates, which enhance the armor of the hull sides, are made of homogeneous steel and have a hardness of about 370 Brinell. The reinforced side armor is not capable of "holding" 2 pound shells fired from 1000 yards.

On the other hand, shelling of a tank carried out in the Middle East in June 1941 showed that a distance of 500 yards (457 m) can be considered as the limit for effectively hitting a PzKpfw IV in the frontal area with fire from a 2-pounder gun. A report on the armor protection of a German tank prepared in Woolwich notes that “the armor is 10% better than similar treated mechanically English, and in some respects even better homogeneous."

At the same time, the method of connecting armor plates was criticized; a specialist from Leyland Motors commented on his research: “The welding quality is poor, the welds of two of the three armor plates in the area where the projectile hit came apart.”

Changing the design of the frontal part of the tank hull

Power point.
The Maybach engine is designed to operate in moderate climatic conditions, where its performance is satisfactory. At the same time, in tropical or highly dusty conditions, it breaks down and is prone to overheating. British intelligence, after studying the PzKpfw IV tank captured in 1942, concluded that engine failures were caused by sand getting into the oil system, distributor, dynamo and starter; air filters are inadequate. There have been frequent cases of sand getting into the carburetor.

The Maybach engine operating manual requires the use of only 74 octane gasoline with a complete lubricant change after 200, 500, 1000 and 2000 km. Recommended engine speed at normal conditions operation - 2600 rpm, but in hot climates (southern regions of the USSR and North Africa) this number of revolutions does not provide normal cooling. Using the engine as a brake is permissible at 2200-2400 rpm; at a speed of 2600-3000 this mode should be avoided.

The main components of the cooling system were two radiators installed at an angle of 25 degrees to the horizontal. The radiators were cooled by an air flow forced by two fans; The fans are driven by a belt from the main engine shaft. Water circulation in the cooling system was ensured by a centrifuge pump. Air entered the engine compartment through an opening on the right side of the hull, covered by an armored damper, and was exhausted out through a similar opening on the left side.

The synchro-mechanical transmission proved efficient, although pulling force in high gears was low, so 6th gear was used only for highway driving. The output shafts are combined with the braking and turning mechanism into a single device. To cool this device, a fan was installed to the left of the clutch box. The simultaneous release of the steering control levers could be used as an effective parking brake.

On tanks of later versions, the spring suspension of the road wheels was heavily overloaded, but replacing the damaged two-wheeled bogie seemed to be a fairly simple operation. The track tension was regulated by the position of the idler mounted on the eccentric. On the Eastern Front, special track extenders, known as "Ostketten", were used, which improved the maneuverability of tanks in winter months of the year.

An extremely simple but effective device for dressing a slipped caterpillar was tested on an experimental tank PzKpfw IV. It was a factory-made belt, which had the same width as the tracks, and was perforated for engagement with the ring gear of the drive wheel. One end of the tape was attached to the slipped track, and the other, after it was passed over the rollers, to the drive wheel. The motor turned on, the drive wheel began to rotate, pulling the tape and the tracks attached to it until the rims of the drive wheel entered the slots on the tracks. The whole operation took a few minutes.

The engine was started by a 24-volt electric starter. Since the auxiliary electric generator saved battery power, it was possible to try to start the engine more times on the “four” than on the PzKpfw III tank. In case of starter failure, or when the lubricant thickened in severe frost, an inertial starter was used, the handle of which was connected to the engine shaft through a hole in the rear armor plate. The handle was turned by two people at the same time; the minimum number of turns of the handle required to start the engine was 60 rpm. Starting the engine from an inertia starter has become commonplace in the Russian winter. The minimum temperature of the engine at which it began to operate normally was t = 50 degrees C with a shaft rotation of 2000 rpm.

To facilitate engine starting in the cold climate of the Eastern Front, a special system was developed known as a "Kuhlwasserubertragung" - a cold water heat exchanger. After starting and warming up to normal temperature engine of one tank, warm water from it was pumped into the cooling system of the next tank, and cold water came to an already running motor - an exchange of coolants between the running and non-running motors took place. After the warm water warmed up the engine somewhat, you could try starting the engine with an electric starter. The "Kuhlwasserubertragung" system required minor modifications to the tank's cooling system.

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“Panzerkampfwagen IV” (“PzKpfw IV”, also “Pz. IV”; in the USSR it was also known as “T‑IV”) - a medium tank of the Wehrmacht armored forces during the Second World War. There is a version that the Pz IV was originally classified by the Germans as a heavy tank, but it is not documented.

The most popular tank of the Wehrmacht: 8,686 vehicles were produced; It was mass-produced from 1937 to 1945 in several modifications. The constantly increasing armament and armor of the tank in most cases allowed the PzKpfw IV to effectively resist tanks of a similar class. French tanker Pierre Danois wrote about the PzKpfw IV (in modification, at that time, with a short-barreled 75-mm cannon): “This medium tank was superior to our B1 and B1 bis in all respects, including armament and, to some extent, armor "

History of creation

Under the terms of the Treaty of Versailles, Germany, defeated in World War I, was prohibited from having armored forces, with the exception of a small number of armored vehicles for police use. But despite this, already since 1925, the Reichswehr Armament Directorate had been secretly working on the creation of tanks. Until the early 1930s, these developments did not go beyond the construction of prototypes, both because of the insufficient characteristics of the latter and because of the weakness of German industry of that period. However, by mid-1933, German designers managed to create their first serial tank- Pz.Kpfw.I and begin its mass production during 1933-1934. Pz.Kpfw.I, with its machine gun weapons and a crew of two, was considered only as a transitional model on the way to the construction of more advanced tanks. The development of two of them began back in 1933 - a more powerful “transitional” tank, the future Pz.Kpfw.II, and a full-fledged battle tank, the future Pz.Kpfw.III, armed with a 37-mm cannon, intended mainly to combat other armored vehicles.

Due to the initial limitations of the PzIII's armament, it was decided to complement it with a fire support tank, with a longer-range cannon with a powerful fragmentation shell capable of hitting anti-tank defenses beyond the range of other tanks. In January 1934, the Armament Directorate organized a competition of projects to create a vehicle of this class, whose mass would not exceed 24 tons. Since work on armored vehicles in Germany at that time was still carried out in secret, the new project, like the others, was given the code name “support vehicle” (German: Begleitwagen, usually shortened to B.W.; a number of sources give incorrect names in German: Bataillonwagen and German: Bataillonfuehrerwagen). From the very beginning, the companies Rheinmetall and Krupp began developing projects for the competition, later joined by Daimler-Benz and M.A.N. Over the next 18 months, all companies presented their developments, and the Rheinmetall project under the designation VK 2001 (Rh) was even manufactured in metal as a prototype in 1934-1935.

Tank Pz.Kpfw. IV Ausf. J (Armored Vehicle Museum - Latrun, Israel)

All presented projects had a chassis with a staggered arrangement of large-diameter road wheels and the absence of support rollers, with the exception of the same VK 2001(Rh), which generally inherited the chassis with small-diameter road wheels interlocked in pairs and side screens from the experimental Nb heavy tank. Fz. The best of them was eventually recognized as the Krupp project - VK 2001 (K), but the Armament Directorate was not satisfied with its leaf spring suspension, which they demanded to replace with a more advanced torsion bar. However, Krupp insisted on using a chassis with medium-diameter rollers interlocked in pairs on a spring suspension, borrowed from the rejected Pz.Kpfw.III prototype of its own design. In order to avoid the inevitable delays in reworking the project for torsion bar suspension in the start of production of the tank, which was urgently needed by the army, the Armament Directorate was forced to agree to Krupp’s proposal. After further refinement of the project, Krupp received an order for the production of a pre-production batch of a new tank, which by that time had received the designation “armored vehicle with a 75-mm gun” (German: 7.5 cm Geschütz-Panzerwagen) or, according to the end-to-end designation system adopted at that time, "experimental sample 618" (German: Versuchskraftfahrzeug 618 or Vs.Kfz.618). Since April 1936, the tank acquired its final designation - Panzerkampfwagen IV or Pz.Kpfw.IV. In addition, it was assigned the index Vs.Kfz.222, which previously belonged to the Pz.Kpfw.II.

Tank PzKpfw IV Ausf G. Armored Museum in Kubinka.

Mass production

Panzerkampfwagen IV Ausf.A - Ausf.F1

The first few Pz.Kpfw.IV "zero" series were manufactured in 1936-1937 at the Krupp plant in Essen. Serial production of the first series, 1.Serie/B.W., began in October 1937 at the Krupp-Gruson plant in Magdeburg. A total of 35 tanks of this modification, designated Panzerkampfwagen IV Ausführung A (Ausf.A - “model A”), were produced until March 1938. According to the unified designation system for German armored vehicles, the tank received the index Sd.Kfz.161. Ausf.A tanks were in many ways still pre-production vehicles and carried bulletproof armor that did not exceed 15-20 mm and poorly protected surveillance devices, especially in the commander's cupola. At the same time, the main design features of the Pz.Kpfw.IV had already been determined at Ausf.A, and although the tank was subsequently subjected to modernization many times, the changes mainly came down to the installation of more powerful armor and weapons, or to unprincipled alterations of individual components.

Immediately after the end of production of the first series, Krupp began production of an improved one - 2.Serie/B.W. or Ausf.B. The most noticeable external difference between the tanks of this modification was the straight upper frontal plate, without a prominent “cabinet” for the driver and with the elimination of the course machine gun, which was replaced by a viewing device and a hatch for firing from personal weapons. The design of the viewing devices was also improved, primarily the commander's cupola, which received armored flaps, and the driver's viewing device. According to other sources, the new commander's cupola was introduced already during the production process, so that some Ausf.B tanks carried the old type commander's cupola. Minor changes affected the landing hatches and various hatches. The frontal armor on the new modification was increased to 30 mm. The tank also received a more powerful engine and a new 6-speed gearbox, which significantly increased its maximum speed, and its range also increased. At the same time, the Ausf.B's ammunition load was reduced to 80 gun rounds and 2,700 machine-gun rounds, instead of 120 and 3,000, respectively, on the Ausf.A. Krupp was given an order for the production of 45 Ausf.B tanks, but due to a shortage of components, only 42 vehicles of this modification were actually produced from April to September 1938.

Tank Pz.Kpfw.IV Ausf.A on parade, 1938.

The first relatively widespread modification was 3.Serie/B.W. or Ausf.C. Compared to the Ausf.B, the changes in it were minor - outwardly, both modifications are distinguishable only by the presence of an armored casing for the barrel of the coaxial machine gun. The remaining changes consisted of replacing the HL 120TR engine with an HL 120TRM of the same power, as well as installing a bumper under the gun barrel on some of the tanks to bend the antenna located on the hull when the turret is rotated. A total of 300 tanks of this modification were ordered, but already in March 1938 the order was reduced to 140 units, as a result of which from September 1938 to August 1939, according to various sources, 140 or 134 tanks were produced, while 6 chassis were transferred for conversion into bridge laying machines.

Museum Pz.Kpfw.IV Ausf.D with additional armor

The next modification, Ausf.D, was produced in two series - 4.Serie/B.W. and 5.Serie/B.W. Most notable external change there was a return to the broken upper frontal plate of the hull and the forward machine gun, which received enhanced protection. The internal mantlet of the gun, which proved vulnerable to lead splashes from bullet hits, was replaced with an external one. The thickness of the side and rear armor of the hull and turret was increased to 20 mm. In January 1938, Krupp received an order for the production of 200 4.Serie/B.W. and 48 5.Serie/B.W., but during production, from October 1939 to May 1941, only 229 of them were completed as tanks, while the remaining 19 were allocated for the construction of specialized variants. Some of the later Ausf.D tanks were produced in a “tropical” version (German tropen or Tp.), with additional ventilation holes in the engine compartment. A number of sources speak of reinforcement of armor carried out in units or during repairs in 1940-1941, which was carried out by bolting additional 20-mm sheets onto the upper side and front plates of the tank. According to other sources, later production vehicles were standardly equipped with additional 20 mm side and 30 mm frontal armor plates of the Ausf.E type. Several Ausf.Ds were re-equipped with long-barreled KwK 40 L/48 guns in 1943, but these converted tanks were used only as training tanks.

Tank Pz.Kpfw.IV Ausf.B or Ausf.C during exercises. November 1943.

The appearance of a new modification, 6.Serie/B.W. or Ausf.E, was caused primarily by the insufficient armor protection of the vehicles early episodes, demonstrated during the Polish campaign. On the Ausf.E, the thickness of the lower frontal plate was increased to 50 mm; in addition, the installation of additional 30 mm plates above the upper front and 20 mm above the side plates became standard, although on a small part of early production tanks additional 30 mm plates were not were installed. The armor protection of the turret, however, remained the same - 30 mm for the front plate, 20 mm for the side and rear plates and 35 mm for the gun mantlet. A new commander's cupola was introduced, with vertical armor thickness from 50 to 95 mm. The slope of the rear wall of the turret was also reduced, which was now made of a single sheet, without a “swell” for the turret, and on late-production vehicles an unarmored box for equipment began to be attached to the rear of the turret. In addition, the Ausf.E tanks were distinguished by a number of less noticeable changes - a new driver's viewing device, simplified drive and guide wheels, an improved design of various hatches and inspection hatches, and the introduction of a turret fan. The order for the sixth series of Pz.Kpfw.IV amounted to 225 units and was completed in full between September 1940 and April 1941, in parallel with the production of Ausf.D tanks.

Pz.Kpfw.IV Ausf.F. Finland, 1941.

Shielding with additional armor (on average 10-12 mm), used on previous modifications, was irrational and was considered only as a temporary solution, which was the reason for the appearance of the next modification, 7.Serie/B.W. or Ausf.F. Instead of using mounted armor, the thickness of the frontal upper plate of the hull, the frontal plate of the turret and the gun mantlet was increased to 50 mm, and the thickness of the sides of the hull and the sides and rear of the turret was increased to 30 mm. The broken upper front plate of the hull was again replaced with a straight one, but this time with the preservation of the forward-facing machine gun, and the side hatches of the turret received double doors. Due to the fact that the mass of the tank after the changes increased by 22.5% compared to the Ausf.A, wider tracks were introduced to reduce the specific ground pressure. Other, less noticeable changes included the introduction of ventilation air intakes in the middle front plate to cool the brakes, a different location of mufflers and slightly modified viewing devices due to the thickening of the armor and the installation of a directional machine gun. With the Ausf.F modification, companies other than Krupp joined the production of the Pz.Kpfw.IV for the first time. The latter received the first order for 500 vehicles of the seventh series; later orders for 100 and 25 units were received by Womag and Nibelungenwerke. Of this number, from April 1941 to March 1942, before production switched to the Ausf.F2 modification, 462 were produced Ausf tank.F, 25 of which were converted to Ausf.F2 at the factory.

Tank Pz.Kpfw.IV Ausf.E. Yugoslavia, 1941.

Panzerkampfwagen IV Ausf.F2 - Ausf.J

Although the main purpose of the 75-mm Pz.Kpfw.IV cannon was to destroy unarmored or lightly armored targets, the presence of an armor-piercing projectile in its ammunition allowed the tank to successfully fight armored vehicles protected by bulletproof or light anti-ballistic armor. But against tanks with powerful anti-ballistic armor, such as the British Matilda or the Soviet KV and T-34, it turned out to be completely ineffective. Back in 1940 - early 1941, the successful combat use of the Matilda intensified work to re-equip the PzIV with a weapon with better anti-tank capabilities. On February 19, 1941, by personal order of A. Hitler, work began on arming the tank with a 50-mm Kw.K.38 L/42 cannon, which was also installed on the Pz.Kpfw.III, and subsequently work began on strengthening the Pz.Kpfw's armament. IV also advanced under his control. In April, one Pz.Kpfw.IV Ausf.D was re-equipped with the newer, more powerful, 50 mm Kw.K.39 L/60 cannon for demonstration to Hitler for his birthday, April 20. It was even planned to produce a series of 80 tanks with such weapons from August 1941, but by that time the interest of the Armament Directorate (Heereswaffenamt) had shifted to the 75 mm long-barreled gun and these plans were abandoned.

Since the Kw.K.39 had already been approved as armament for the Pz.Kpfw.III, it was decided to choose an even more powerful gun for the Pz.Kpfw.IV, which could not be installed on the Pz.Kpfw.III with its smaller turret ring diameter . Since March 1941, Krupp, as an alternative to the 50-mm cannon, has been considering a new 75-mm cannon with a barrel length of 40 calibers, intended for re-equipping the StuG.III assault guns. At a distance of 400 meters, it penetrated 70 mm armor at an angle of 60°, but since the Armament Directorate required that the gun barrel not protrude beyond the dimensions of the tank hull, its length was reduced to 33 calibers, which resulted in a decrease in armor penetration to 59 mm under the same conditions. It was also planned to develop a sub-caliber armor-piercing projectile with a separating pan, which would penetrate 86 mm armor under the same conditions. Work to re-equip the Pz.Kpfw.IV with a new gun progressed successfully, and in December 1941 the first prototype with a 7.5 cm Kw.K gun was built. L/34.5.

Tank Pz.Kpfw.IV Ausf.F2. France, July 1942.

Meanwhile, the invasion of the USSR began, during which German troops encountered T-34 and KV tanks, which were low-vulnerable to the main tank and anti-tank guns of the Wehrmacht and at the same time carried a 76-mm cannon that pierced the frontal armor of German tanks, which were then practically in service with the Panzerwaffe. at any real combat distances. The Special Tank Commission, sent to the front in November 1941 to study this issue, recommended the rearmament of German tanks with a weapon that would allow them to hit soviet cars from long distances, remaining outside the radius of effective fire from the latter. On November 18, 1941, the development of a tank gun was initiated, similar in its capabilities to the new 75-mm anti-tank gun Pak 40. Such a gun, initially designated Kw.K.44, was developed jointly by Krupp and Rheinmetall. The barrel passed to it from the anti-tank gun without changes, but since the latter's shots were too long for use in a tank, a shorter and thicker sleeve was developed for the tank gun, which entailed reworking the breech of the gun and reducing the overall length of the barrel to 43 calibers. The Kw.K.44 also received a single-chamber spherical muzzle brake, which differed from the anti-tank gun. In this form, the gun was adopted as the 7.5 cm Kw.K.40 L/43.

Pz.Kpfw.IVs with the new gun were initially designated as "converted" (German: 7.Serie/B.W.-Umbau or Ausf.F-Umbau), but soon received the designation Ausf.F2, while the Ausf.F vehicles with the old ones The guns began to be called Ausf.F1 to avoid confusion. The designation of the tank according to the unified system changed to Sd.Kfz.161/1. With the exception of a different gun and associated minor changes, such as the installation of a new sight, new firing positions and slightly modified armor for the gun's recoil devices, the early Ausf.F2s were identical to the Ausf.F1 tanks. After a month's break associated with the transition to a new modification, production of the Ausf.F2 began in March 1942 and continued until July of the same year. A total of 175 tanks of this variant were produced and another 25 were converted from Ausf.F1.

Tank Pz.Kpfw. IV Ausf. G (tail number 727) of the 1st Panzergrenadier Division "Leibstandarte SS Adolf Hitler". The vehicle was hit by artillerymen of the 4th battery of the 595th anti-tank artillery regiment in the area of ​​the street. Sumskaya in Kharkov, on the night of March 11-12, 1943. On the frontal armor plate, almost in the center, two entrance holes from 76-mm shells are visible.

The appearance of the next modification of the Pz.Kpfw.IV was not initially caused by any changes in the design of the tank. In June - July 1942, by orders of the Armament Directorate, the designation of Pz.Kpfw.IV with long-barreled guns was changed to 8.Serie/B.W. or Ausf.G, and in October the designation Ausf.F2 was finally abolished for previously produced tanks of this modification. The first tanks, released as Ausf.G, were thus identical to their predecessors, but as production continued, more and more changes were made to the tank's design. Ausf.G of early releases still carried the index Sd.Kfz.161/1 according to the end-to-end designation system, which was replaced by Sd.Kfz.161/2 on vehicles of later releases. The first changes, made already in the summer of 1942, included a new two-chamber pear-shaped muzzle brake, the elimination of viewing devices in the front side plates of the turret and the loader's inspection hatch in its frontal plate, the transfer of smoke grenade launchers from the rear of the hull to the sides of the turret and a system for facilitating launch in winter conditions.

Since the 50 mm frontal armor of the Pz.Kpfw.IV was still insufficient, not providing adequate protection against 57 mm and 76 mm guns, it was again reinforced by welding or, on later production vehicles, bolting additional 30-mm mm of plates above the upper and lower frontal plates of the hull. The thickness of the front plate of the turret and gun mantlet, however, was still 50 mm and did not increase during further modernization of the tank. The introduction of additional armor began with the Ausf.F2, when 8 tanks with increased armor thickness were produced in May 1942, but progress was slow. By November, only about half of the vehicles were produced with reinforced armor, and only from January 1943 did it become standard for all new tanks. Another significant change introduced to the Ausf.G from the spring of 1943 was the replacement of the Kw.K.40 L/43 gun with the Kw.K.40 L/48 with a 48-caliber barrel length, which had slightly higher armor penetration. Production of the Ausf.G continued until June 1943; a total of 1,687 tanks of this modification were produced. Of this number, about 700 tanks received reinforced armor and 412 received the Kw.K.40 L/48 gun.

Pz.Kpfw.IV Ausf.H with side screens and zimmerit coating. USSR, July 1944.

The next modification, Ausf.H, became the most widespread. The first tanks under this designation, which rolled off the assembly line in April 1943, differed from the last Ausf.G only in the thickening of the front turret roof sheet to 16 mm and the rear one to 25 mm, as well as reinforced final drives with cast drive wheels, but the first 30 tanks Ausf.H, due to delays in the supply of new components, received only a thicker roof. Since the summer of the same year, instead of additional 30 mm hull armor, solid-rolled 80 mm plates were introduced to simplify production. In addition, hinged anti-cumulative screens made of 5 mm sheets were introduced, installed on most Ausf.H. In this regard, viewing devices on the sides of the hull and turret were eliminated as unnecessary. Since September, tanks have been coated with vertical armor with Zimmerit to protect them from magnetic mines.

Ausf.H tanks of later production received a turret mount for the MG-42 machine gun at the commander's cupola hatch, as well as a vertical rear plate instead of the inclined one that was present on all previous modifications of the tanks. During production, various changes were also introduced to make production cheaper and easier, such as the introduction of non-rubber support rollers and the elimination of the driver's periscopic viewing device. From December 1943, the frontal hull plates began to be connected to the side joints in a “tenon” manner to enhance resistance to shell hits. Production of the Ausf.H continued until July 1944. Data on the number of tanks of this modification produced, given in various sources, vary somewhat, from 3935 chassis, of which 3774 were completed as tanks, to 3960 chassis and 3839 tanks.

The German medium tank Pz.Kpfw destroyed on the Eastern Front. IV lying upside down on the side of the road. Part of the caterpillar in contact with the ground is missing, in the same place there are no rollers with a fragment of the lower part of the hull, a bottom sheet is torn off, and the second caterpillar is torn off. Top part the machine, as far as can be judged, does not have such fatal destruction. A typical picture of a landmine explosion.

The appearance of the Ausf.J modification on assembly lines in June 1944 was associated with the desire to reduce the cost and simplify the production of the tank as much as possible in the conditions of Germany's deteriorating strategic position. The only, but significant, change that distinguished the first Ausf.J from the last Ausf.H was the elimination of the electric drive for turning the turret and the associated auxiliary carburetor engine with a generator. Soon after the start of production of the new modification, the pistol ports in the stern and sides of the turret, which were useless due to the screens, were eliminated, and the design of other hatches was simplified. Since July, an additional fuel tank with a capacity of 200 liters began to be installed in place of the liquidated auxiliary engine, but the fight against its leakage dragged on until September 1944. In addition, the 12-mm hull roof began to be reinforced by welding additional 16-mm sheets. All subsequent changes were aimed at further simplifying the design, the most notable among them being the abandonment of the Zimmerit coating in September and the reduction in the number of support rollers to three per side in December 1944. Production of tanks of the Ausf.J modification continued almost until the very end of the war, until March 1945, but a decrease in production rates associated with the weakening of German industry and difficulties with the supply of raw materials led to the fact that only 1,758 tanks of this modification were produced.

Production volumes of the T-4 tank

Design

The Pz.Kpfw.IV had a layout with a combined transmission and control compartment located in the front, an engine compartment in the rear, and a fighting compartment in the middle part of the vehicle. The tank's crew consisted of five people: a driver and gunner-radio operator, located in the control compartment, and a gunner, loader and tank commander, located in a three-man turret.

Armored hull and turret

The turret of the PzKpfw IV tank made it possible to modernize the tank's gun. Inside the turret there was a commander, gunner and loader. The commander's position was located directly under the commander's cupola, the gunner was located to the left of the breech of the gun, and the loader was located to the right. Additional protection was provided by anti-cumulative screens, which were also installed on the sides. The commander's cupola at the rear of the turret gave the tank good visibility. The tower had an electric drive for rotation.

Soviet soldiers examine a broken German Pz.Kpfw tank. IV Ausf. H (single-leaf hatch and absence of three-barrel grenade launchers on the turret). The tank is painted in three-color camouflage. Oryol-Kursk direction.

Surveillance and communications equipment

In non-combat conditions, the tank commander, as a rule, conducted observation while standing in the hatch of the commander's cupola. In battle, to view the area, he had five wide viewing slits around the perimeter of the commander's cupola, giving him an all-round view. The commander's viewing slits, like those of all other crew members, were equipped with a protective triplex glass block with inside. On the Pz.Kpfw.IV Ausf.A the viewing slots did not have any additional cover, but on the Ausf.B the slots were equipped with sliding armor flaps; in this form, the commander’s viewing devices remained unchanged on all subsequent modifications. In addition, on tanks of early modifications, the commander's cupola had a mechanical device for determining the target's heading angle, with the help of which the commander could carry out precise target designation to the gunner, who had a similar device. However, due to excessive complexity, this system was eliminated, starting with the Ausf.F2 modification. The gunner's and loader's viewing devices on Ausf.A - Ausf.F consisted of, for each of them: a viewing hatch with an armored cover without viewing slots, in the front plate of the turret on the sides of the gun mantlet; an inspection hatch with a slot in the front side sheets and an inspection slot in the turret side hatch cover. Starting with the Ausf.G, as well as on some of the Ausf.F2 of late production, the inspection devices in the front side plates and the loader's inspection hatch in the front plate were eliminated. On some tanks of the Ausf.H and Ausf.J modifications, due to the installation of anti-cumulative screens, the viewing devices on the sides of the turret were completely eliminated.

The main means of observation for the driver of the Pz.Kpfw.IV was a wide viewing slot in the front hull plate. On the inside, the gap was protected by a triplex glass block; on the outside, on the Ausf.A it could be closed with a simple folding armor flap; on the Ausf.B and subsequent modifications, it could be closed with a Sehklappe 30 or 50 sliding flap, which was also used on the Pz.Kpfw.III. A periscope binocular viewing device K.F.F.1 was located above the viewing slit on Ausf.A, but it was eliminated on Ausf.B - Ausf.D. On Ausf.E - Ausf.G the viewing device appeared in the form of an improved K.F.F.2, but starting with Ausf.H it was abandoned again. The device was brought out into two holes in the front plate of the body and, if there was no need for it, was moved to the right. The radio operator-gunner on most modifications did not have any means of viewing the frontal sector, in addition to the sight of the forward machine gun, but on Ausf.B, Ausf.C and parts of Ausf.D, in place of the machine gun there was a hatch with a viewing slot in it. Similar hatches were located in the side plates on most Pz.Kpfw.IVs, being eliminated only on Ausf.Js due to the installation of anti-cumulative shields. In addition, the driver had a turret position indicator, one of two lights warned about the turret turning to one side or another in order to avoid damage to the gun when driving in cramped conditions.

For external communications, Pz.Kpfw.IV platoon commanders and above were equipped with a Fu 5 model VHF radio station and a Fu 2 receiver. Line tanks were equipped only with a Fu 2 receiver. FuG5 had a transmitter power of 10 W and provided a communication range of 9.4 km in telegraph and 6.4 km in telephone mode. For internal communications, all Pz.Kpfw.IVs were equipped with a tank intercom for four crew members, with the exception of the loader.

On January 11, 1934, at a meeting of the Wehrmacht Armament Directorate, the basic principles of arming tank divisions were approved. Soon after this, a prototype of the future PzKpfw IV tank was born, which for conspiracy purposes was called the already familiar definition of “medium tractor” - Mittleren Tractor. When the need for secrecy disappeared and the combat vehicle began to be openly called the tank of the battalion commander - Batail-lonfuhrerswagen (BW).

This name lasted until the introduction of a unified designation system for German tanks, when the BW finally became the PzKpfw IV medium tank. Medium tanks were supposed to serve as infantry support. The weight of the vehicle was not supposed to exceed 24 tons, and it was supposed to be armed with a short-barreled 75-mm cannon. It was decided to borrow the general layout, the thickness of the armor plates, the principle of crew placement and other characteristics from the previous tank, the PzKpfw III. Work on creating a new tank began in 1934. The Rheinmetall-Borsig company was the first to present a plywood model of the future machine, and the following year a real prototype appeared, designated VK 2001/Rh.

The prototype was made of mild welded steel and weighed approximately 18 tons. No sooner had he left the walls of the manufacturing plant than he was immediately sent for testing to Kummersdorf. (It was in Kummersdorf that Adolf Hitler first became acquainted with Wehrmacht tanks. During this familiarization trip, Hitler showed great interest in the issues of motorization of the army and the creation of armored forces. Chief of Staff of the Armored Forces Guderian arranged demonstration tests of motorized mechanized forces for the Reich Chancellor. Hitler was shown motorcycle and anti-tank platoons , as well as platoons of light and heavy armored vehicles. According to Guderian, the Fuhrer was very pleased with the visit.)

PzKpfw IV and PzKpfw III tanks at Tankfest in Bovington

Daimler-Benz, Krupp and MAN also built their prototypes of the new tank. Krupp presented a combat vehicle almost similar to the prototype of the platoon commander’s vehicle they had previously proposed and rejected. After the tests, the technical department of the tank forces chose the VK 2001/K version, proposed by Krupp, for mass production, making minor changes to its design. In 1936, the first prototype of the 7.5 cm Geschiitz-Panzerwagen tank (VsKfz 618) was built, an armored vehicle with a 75 mm cannon (experimental model 618).

The initial order was for 35 vehicles, which were produced by the Friedrich Krupp AG factories in Essen between October 1936 and March 1937. Thus began the production of the most massive German tank, which remained in service with the armored forces of the Third Reich until the very end of the war. The PzKpfw IV medium tank owes its high combat characteristics entirely to the designers, who brilliantly coped with the task of enhancing the armor and firepower of the tank without making significant changes to the basic design.

MODIFICATIONS OF THE PzKpfw IV TANK

Tank PzKpfw IV Ausf A became the model for the creation of all subsequent modifications. The armament of the new tank consisted of a 75mm KwK 37 L/24 cannon, coaxial with a turret machine gun, and a front-mounted machine gun located in the hull. The power plant was a 12-cylinder carburetor liquid-cooled Maybach HL 108TR engine, which developed a power of 250 hp. The hull also housed an additional engine that drove an electric generator, which provided power to the electric drive for rotating the turret. The combat weight of the tank was 17.3 tons, the thickness of the frontal armor reached 20 mm.

A characteristic feature of the Pz IV Ausf A tank was the cylindrical commander's cupola with eight viewing slots covered with armored glass blocks.

German medium tank PzKpfw IV Ausf A

The chassis, applied to one side, consisted of eight road wheels, interlocked in pairs into four bogies, suspended on quarter-elliptical leaf springs. There were four small road wheels on top. The drive wheel is front-mounted. The guide wheel (sloth) had a mechanism for tensioning the tracks. It should be noted that this design of the chassis of the PzKpfw IV Ausf A tank was practically not subject to significant changes in the future. The PzKpfw IV Ausf A tank is the first production tank of this type.

Tactical and technical characteristics of the medium tank PzKpfw IV Ausf A (SdKfz 161)

Date of creation......................... 1935 (the first tank appeared in 1937)
Combat weight (t) ........................... 18.4
Dimensions (m):
length........................5.0
width........................2.9
height........................2.65
Armament: ............ main 1 x 75 mm KwK 37 L/24 cannon secondary 2 x 7.92 mm MG 13 machine guns
Ammunition - main...................122 rounds
Armor (mm): ....................maximum 15 minimum 5
Engine type...................Maybach HL 108 TR (3000 rpm)
Maximum power (hp) .................250
Crew...................5 people
Maximum speed (km/h) ..................32
Cruising range (km)....................150

The following tank modification: PzKpfw IV Ausf B- featured an improved Maybach HL 120TRM engine with a power of 300 hp. at 3000 rpm and a new six-speed ZFSSG 76 gearbox instead of the five-speed SSG 75. The main difference between the PzKpfw FV Ausf B was the use of a straight body plate instead of the broken one of its predecessor. At the same time, the front-mounted machine gun was dismantled. In its place was a radio operator’s viewing device, which could fire personal weapons through the loophole. Frontal armor increased to 30 mm, due to which the combat weight increased to 17.7 tons. The commander's cupola also underwent changes, whose viewing slots were covered with removable covers. The order for the new “four” (still called 2/BW) was 45 vehicles, however, due to a lack of necessary parts and materials, the Krupp company was able to produce only 42.

German medium tank PzKpfw IV Ausf B

Tanks PzKpfw IV version Ausf C appeared in 1938 and differed very little from the Ausf B vehicles. Externally, these tanks are so similar that it can be very difficult to distinguish them. An additional similarity with the previous version is given by a straight frontal plate without an MG machine gun, instead of which an additional viewing device has appeared. Minor changes affected the introduction of an armored casing for the barrel of the MG-34 machine gun, as well as the installation of a special bumper under the gun, which bent the antenna when turning the turret, preventing it from breaking. In total, approximately 140 units of 19-ton Ausf C tanks were produced.

German medium tank PzKpfw IV Ausf C

Tanks of the next model - PzKpfw IV D- received an improved design of the gun mantlet. The practice of using tanks forced a return to the original design of a broken front plate (as on the PzKpfw IV Ausf A tanks). The front machine gun mount was protected by a square armor casing, and the side and rear armor increased from 15 to 20 mm. After the new tanks were tested, the following entry appeared in the military circular (No. 685 dated September 27, 1939): “PzKpfw IV (with a 75-mm cannon) SdKfz 161 is from now on declared suitable for successful use in military formations.” .

German medium tank PzKpfw IV Ausf D

A total of 222 Ausf D tanks were produced, with which Germany entered the Second World War. world war. During the Polish campaign, several “fours” ingloriously returned from the battlefields to their homeland for repairs and modifications. It turned out that the thickness of the armor of the new tanks was insufficient to ensure their safety, so additional armor plates were urgently required to protect the most important components. It is curious that in the reports of the English military intelligence At that time, there was an assumption that the strengthening of the combat armor of tanks often took place “illegally”, without corresponding orders from above, and sometimes even in spite of it. Thus, an order from the German military command intercepted by the British strictly prohibited the unauthorized welding of additional armor plates onto the hulls of German tanks. The order explained that “makeshift* fastening of armor plates does not increase, but reduces the protection of the tank, therefore the Wehrmacht command ordered commanders to strictly follow the instructions regulating the work to enhance the armor protection of combat vehicles.

German medium tank PzKpfw IV Ausf E

Soon the long-awaited “quartet” was born PzKpfw IV Ausf E, the design of which took into account all the previously identified shortcomings of the PzKpfw IV Ausf D. First of all, this related to increased armor protection. Now the 30 mm frontal armor of the hull was protected by additional 30 mm plates, and the sides were covered with 20 mm sheets. All these changes led to the fact that the combat weight increased to 21 tons. In addition, the Pz-4 Ausf E tanks had a new commander's cupola, which now almost did not extend beyond the turret. The course machine gun received a Kugelblende 30 ball mount. A box for spare parts and equipment was mounted on the rear wall of the turret. The chassis used new simplified drive wheels and wider tracks of a new type with a width of 400 mm instead of the old ones with a width of 360 mm.

German medium tank PzKpfw IV Ausf F1

The next option was a tank PzKpfw IV Ausf F1. These tanks had a solid front plate 50 mm thick and 30 mm sides. The forehead of the turret also received 50 mm armor. This tank became latest model, armed with a short-barreled 75 mm cannon with a low initial speed projectile.

German medium tank PzKpfw IV Ausf F2

Soon, Hitler personally ordered the replacement of this ineffective gun with a long-barreled 75-mm KwK 40 L/43 - thus the medium tank was born PzKpfw IV F2. The new weapon required changes to the design of the turret's fighting compartment in order to accommodate the increased ammunition load. 32 shots out of 87 were now placed in the turret. The initial speed of a conventional armor-piercing projectile has now increased to 740 m/s (versus 385 m/s for the previous gun), and armor penetration has increased by 48 mm and amounted to 89 mm versus the previous 41 mm (with an armor-piercing projectile at a range of 460 meters at an impact angle of 30°) . The new powerful weapon immediately and forever changed the role and place of the new tank in the German armored forces. In addition, the PzKpfw IV received a new Turmzielfernrohr TZF Sf sight and a gun mantlet of a different shape. From now on, the PzKpfw III medium tank fades into the background, content with the role of an infantry support and escort tank, and the PzKpfw IV for a long time becomes the main “assault” tank of the Wehrmacht. In addition to Krupp-Gruson AG, two more enterprises joined the production of PzKpfw IV tanks: VOMAG and Nibelungenwerke. The appearance on the theater of operations of the modernized Pz IV “fours” significantly complicated the position of the allies, since the new gun allowed the German tank to successfully fight against most of the armored vehicles of the USSR and coalition member countries. In total, 1,300 early Ausf fours (from A to F2) were produced during the period until March 1942.

PzKpfw IV is called the main tank of the Wehrmacht. More than 8,500 “fours” formed the basis of the Wehrmacht’s tank forces, its main striking force.

The next large-scale version was the tank PzKpfw IV Ausf G. From May 1942 to June 1943, much more of them were created than vehicles of previous modifications, more than 1,600 units.

German medium tank PzKpfw IV Ausf G

The very first Pz IV Ausf Gs were practically no different from the PzKpfw IV F2, but during the production process numerous changes were made to the basic design. First of all, this concerns the installation of a 75-mm KwK 40 L/48 cannon with a two-chamber muzzle brake. The upgraded version of the KwK 40 tank gun had an initial projectile speed of 750 m/s. New model The Quartet tank was equipped with additional 5-mm protective screens to protect the turret and sides of the hull, which received the humorous nickname “apron” among the troops. The Pz Kpfw IV Aufs G tank, produced since March 1943, was armed with a 75-mm cannon with a barrel length of L/48 instead of the previous one with a barrel length of 43 calibers. A total of 1,700 vehicles of this modification were produced. Despite the increased armament, the PZ-4 still could not compete with the Russian T-34.
Weak armor protection made them too vulnerable. In this photo you can see how the Pz Kpfw IV Ausf G tank uses sandbags as additional protection. Of course, such measures could not significantly improve the situation.

The most popular series was the tank PzKpfw IV Ausf N, more than 4,000 units were produced, including various self-propelled guns, created on the T-4 chassis (“four”).

German medium tank PzKpfw IV Ausf H

This tank was distinguished by the most powerful frontal armor (up to 80 mm), the introduction of 5-mm side screens of the hull and turret, the MG-34 -Fliegerbeschussgerat 41/42 anti-aircraft machine gun mount mounted on the commander's turret, a new, improved ZF SSG 77 gearbox and minor changes in the transmission. The combat weight of this modification of the Pz IV reached 25 tons. The latest version of the Quartet was the tank PzKpfw IV J, which continued to be produced until March 1945. From June 1944 to March 1945, more than 1,700 of these vehicles were produced. Tanks of this type were equipped with high-capacity fuel tanks, which increased the cruising range to 320 km. However, in general, the latest “fours” have been significantly simplified compared to previous models.

DESCRIPTION OF THE PzKpfw IV TANK DESIGN

TURRET AND HULL OF TANK Pz IV

The hull and turret of the Pz-4 tank were welded. There were evacuation hatches on each side of the tower for boarding and disembarking crew members.

Tank Pz IV with installed protection against cumulative shells

The tower was equipped with a commander's cupola with five viewing slots equipped with armored glass blocks - triplex and protective armor covers, which were lowered and raised using a small lever located under each slot.

Inside the Pz IV Ausf G tank. The photo was taken from the right hatch (loader).

The tower's pole rotated with her. The armament consisted of a 75-mm (short-barreled KwK 37 or long-barreled KwK 40) cannon and a coaxial turret machine gun, as well as an MG course machine gun mounted in the frontal armor of the hull in a ball mount and intended for the radio operator. This armament scheme is typical for all modifications of the “fours” with the exception of version C tanks.

Inside the Pz IV Ausf G tank. Photo taken from the left hatch (gunner).

Layout of the PzKpfw IV tank- classic, with front transmission. Inside, the tank hull was divided into three compartments by two bulkheads. The rear compartment contained the engine compartment.

As in other German tanks, a cardan shaft was thrown from the engine to the gearbox and drive wheels, running under the turret floor. Next to the engine was an auxiliary engine for the turret rotation mechanism. Because of this, the turret was shifted to the left along the axis of symmetry of the tank by 52 mm. Three fuel tanks were installed on the floor of the central fighting compartment, under the floor of the turret. total capacity 477 liters. The fighting compartment turret housed the remaining three crew members (commander, gunner and loader), weapons (a cannon and a coaxial machine gun), observation and aiming devices, vertical and horizontal guidance mechanisms. The driver and radio operator firing from a machine gun mounted in a ball joint were located in the front compartment of the hull, on both sides of the gearbox.

German medium tank PzKpfw IV Ausf A. View of the driver's seat.

Armor thickness of the PzKpfw IV tank was constantly increasing. The frontal armor of the T-4 was welded from rolled armor plates with surface cementation and was usually thicker and stronger than the side armor. Additional protection using armor plates was not used until the creation of the Ausf D tank. To protect the tank from bullets and cumulative shells, zimmerit coating was applied to the lower and side surfaces of the hull and the side surfaces of the turret. Testing of the T-4 Ausf G carried out by the British using the Brinell method gave the following results: front front plate in an inclined plane (outer surface) - 460-490 HB; front vertical plate (outer surface) - 500-520 HB; inner surface -250-260 HB; tower forehead (outer surface) - 490-51 0 HB; hull sides (outer surface) - 500-520 HB; inner surface - 270-280 HB; tower sides (outer surface) -340-360 HB. As mentioned above, on the “fours” latest versions additional armored “screens” were used, made of steel sheets measuring 114 x 99 cm and mounted on the sides of the hull and turret, at a distance of 38 cm from the hull. The turret was protected by 6 mm thick armor plates attached around the rear and sides, and the protective screen had hatches located exactly in front of the turret hatches.

TANK ARMAMENT.

The PzKpfw IV Ausf A - F1 tanks were equipped with a short-barreled 75-mm KwK 37 L/24 cannon with a 24-caliber barrel length, a vertical bolt and an initial projectile velocity not exceeding 385 m/s. The PzKpfw III Ausf N tanks and StuG III assault guns were equipped with exactly the same guns. The gun's ammunition included almost all types of shells: armor-piercing tracer, armor-piercing tracer sub-caliber, cumulative, high-explosive fragmentation and smoke.

View of the double-leaf escape hatch in the turret of the Pz IV tank

To rotate the gun by the required 32° (from - 110 to + 21 it took 15 full revolutions. The Pz IV tanks used both an electric drive and a manual drive for turning the turret. The electric drive was powered by a generator driven by a two-cylinder, two-stroke, water-cooled engine. For rough target designation, a dial-hour type system was used. To do this, the horizontal firing angle of the tank's turret gun, equal to 360°, was divided into twelve divisions, and the division corresponding to the traditional position of the number 12 on the clock dial indicated the direction of movement of the tank. Another transmission, via a hinge shaft, drove a gear ring in the commander's cupola. This ring was also graduated from 1 to 12 a, in addition, the external scale of the turret, corresponding to the dial of the main gun, was equipped with a fixed pointer.

View of the rear of the PZ IV tank

Thanks to this device, the commander could determine the approximate location of the target and give appropriate instructions to the gunner. The driver's position was equipped with a turret position indicator (with two lights) on all models of the PzKpfw IV tank (except Ausf J). Thanks to this device, the driver knew the location of the turret and tank gun. This was especially important when moving through the forest and in populated areas. The gun was mounted together with a coaxial machine gun and a TZF 5v telescopic sight (on early modifications of tanks); TZF 5f and TZF 5f/l (on tanks starting with PzKpfw IV Ausf E tanks). The machine gun was powered from a flexible metal strip, and the shooter fired using a special foot pedal. The telescopic 2.5x sight was equipped with scales of three ranges (for the main gun and machine gun).

View of the front part of the turret of the Pz IV tank

The MG-34 course machine gun was equipped with a KZF 2 telescopic sight. The full ammunition load consisted of 80-87 (depending on modification) artillery rounds and 2,700 rounds of ammunition for two 7.92 mm machine guns. Starting with the Ausf F2 modification, the short-barreled gun is replaced by a more powerful long-barreled 75-mm KwK 40 L/43 cannon, and the latest modifications (starting with Ausf H) receive an improved L/48 gun with a barrel length of 48 calibers. The short-barreled guns had a single-chamber muzzle brake, while the long-barreled ones had to be equipped with two-chamber ones. Increasing the barrel length required a counterweight. To achieve this, the latest modifications of the Pz-4 were equipped with a heavy compression spring installed in a cylinder attached to the front of the rotating turret floor.

Engine and transmission

The first versions of the PzKpfw IV were equipped with the same engine as the tanks of the PzKpfw III series - the 12-cylinder Maybach HL 108 TR with a power of 250 hp, which required gasoline with an octane rating of 74. Subsequently, they began to use the tank as a power plant. improved Maybach HL 120 TR and HL 120 TRM engines with 300 hp power. The engine as a whole was distinguished by its high reliability and resistance to temperature changes, but this did not apply to the conditions of the African heat and the sultry regions of southern Russia. To avoid the engine boiling, the driver had to drive the tank with all possible caution. In winter conditions, a special installation was used that made it possible to pump heated liquid (ethylene glycol) from a working tank into a tank that needed to be started. Unlike the PzKpfw III tanks, the engine of the T-4 was located asymmetrically, with right side housings. The small-link caterpillars of the T-4 tank consisted of 101 or 99 links (starting from F1) with a width (options) PzKpfw IV Ausf A - E 360 mm, and in Ausf F-J- 400 mm, their total weight was close to 1300 kg. The track tension was adjusted using a rear guide wheel mounted on an eccentric axis. The ratchet mechanism prevented the axle from turning backward and causing the track to sag.

TRACK REPAIR.
Each crew of the Pz IV tank had at its disposal an industrial belt of the same width as the tracks. The edges of the belt were perforated so that the holes coincided with the teeth of the drive wheel. If the track failed, a belt was attached to the damaged area, passed over the support rollers and attached to the teeth of the drive wheel. After this, the engine and transmission were started. The drive wheel turned and pulled the track and belt forward until the track caught on the wheel. Anyone who has ever had to lift a heavy long caterpillar“in the old-fashioned way” - using a piece of rope or fingers, he will appreciate what a salvation this simple scheme was for the crew.

BATTLE RECORD OF Pz IV TANK

The “four” began their combat journey in Poland, where, despite their small numbers, they immediately became a noticeable strike force. On the eve of the invasion of Poland, there were almost twice as many “fours” in the Wehrmacht troops as “threes” - 211 versus 98. The fighting qualities of the “fours” immediately attracted the attention of Heinz Guderian, who from that moment on would constantly insist on increasing their production. Of the 217 tanks lost by Germany during the 30-day war with Poland, there were only 19 “fours”. In order to better imagine the Polish stage of the PzKpfw IV’s combat path, let’s turn to the documents. Here I want to introduce readers to the history of the 35th tank regiment who took part in the occupation of Warsaw. I present to your attention excerpts from the chapter dedicated to the assault on the Polish capital, written by Hans Schaufler.

“It was the ninth day of the war. I have just joined the brigade headquarters as a liaison officer. We were standing in the small suburb of Ochota, located on the Rawa-Ruska-Warsaw road. Another attack on the Polish capital was coming. The troops are brought to full readiness. The tanks were lined up in a column, with infantry and sappers behind them. We are waiting for the order to advance. I remember the strange calm that reigned among the troops. No rifle shots or machine gun fire were heard. Only occasionally the silence was broken by the rumble of a reconnaissance aircraft flying over the column. I was sitting in the command tank next to General von Hartlieb. To be honest, it was a bit cramped in the tank. The brigade adjutant, Captain von Harling, studied the topographic map with applied furnishings. Both radio operators clung to their radios. One listened to the message from the division headquarters, the second kept his hand on the key to immediately begin transmitting orders to the units. The engine purred loudly. Suddenly a whistle cut through the silence, the next second drowned out by a loud explosion. First it hit the right, then the left of our car, then from behind. Artillery came into action. The first groans and cries of the wounded were heard. Everything is as usual - the Polish artillerymen send us their traditional “hello”.
Finally the order was received to go on the offensive. The engines roared and the tanks moved towards Warsaw. Quite quickly we reached the suburbs of the Polish capital. Sitting in the tank, I heard the chatter of machine gun fire, the explosions of hand grenades and the clicking of bullets on the armored sides of our vehicle. Our radio operators received one message after another. “Forward to the street barricade*,” was transmitted from the headquarters of the 35th regiment. “Anti-tank gun - five tanks destroyed - there is a mined barricade ahead,” neighbors reported. “Order for the regiment! Turn straight south!" - thundered the general's bass. He had to yell above the hellish noise outside.

“Pass the message to division headquarters,” I ordered the radio operators. -We approached the outskirts of Warsaw. The streets are barricaded and mined. Turn right*. After some time, a short message comes from the regiment headquarters: -The barricades have been taken*.
And again the sound of bullets and loud explosions to the left and right of our tank... I feel like someone is pushing me in the back. “The enemy’s positions are three hundred meters ahead,” the general shouted. - Turn right!* The terrible grinding of caterpillars on the cobblestone street - and we enter a deserted square. -Faster, damn it! Even faster!* - the general shouts furiously. He's right, you can't hesitate - the Poles shoot very accurately. “We came under heavy artillery fire,” reports from the 36th Regiment. *3b regiment! - the general answers immediately. “Demand artillery cover immediately!” You can hear stones and shell fragments hitting the armor. The blows are getting stronger. Suddenly, a monstrous explosion is heard very close by, and I smash my head into the radio. The tank is tossed up and thrown to the side. The engine stalls.
Through the hatch cover I see a dazzling yellow flame.

Tank PzKpfw IV

In the fighting compartment, everything is turned upside down, gas masks, fire extinguishers, camp bowls, and other small things are lying everywhere... A few seconds of eerie numbness. Then everyone shakes themselves, looks at each other anxiously, and quickly feels themselves. Thank God, alive and well! The driver engages third gear, we wait with bated breath for the familiar sound and take a breath of relief when the tank obediently moves away. True, there is a suspicious tapping noise coming from the right track, but we are too happy to take such trifles into account. However, as it turned out, our misfortunes were far from over. Before we had time to drive a few meters, a new strong shock shook the tank and threw it to the right. From every house, from every window we were bombarded with furious machine-gun fire. From the roofs and attics, the Poles threw hand grenades and incendiary bottles with condensed gasoline at us. There were probably a hundred times more enemies than there were, but we did not turn back.

We stubbornly continued to move in a southerly direction and neither the barricades of overturned trams, twisted barbed wire and rails dug into the ground could stop us. Every now and then our tanks came under fire from anti-tank guns. “Lord, make sure they don’t knock out our tank!”- we silently prayed, fully aware that any forced stop would be the last in our lives. Meanwhile, the sound of the caterpillar became increasingly loud and threatening. Finally we stopped at some Orchard and hid behind the trees. By this time, some units of our regiment managed to break through to the outskirts of Warsaw, but further advance became more and more difficult. Disappointing messages came over the radio every now and then: “The offensive was stopped by heavy enemy artillery fire - the tank hit a mine - the tank was hit by an anti-tank gun - artillery support is urgently required”.

We also did not manage to take a proper breath under the shade of the fruit trees. The Polish artillerymen quickly found their bearings and brought down a barrage of fierce fire on us. With every second the situation became more and more frightening. We tried to leave the shelter that had become dangerous, but it turned out that the damaged track had completely failed. Despite all our efforts, we could not even move. The situation seemed hopeless. It was necessary to repair the track on site. Our general could not even temporarily leave command of the operation; he dictated message after message, order after order. We sat idle... When the Polish guns fell silent for a while, we decided to take advantage of this short respite to inspect the damaged chassis. However, as soon as we opened the hatch cover, the fire resumed. The Poles settled somewhere very close and, remaining invisible to us, turned our car into an excellent target. After several unsuccessful attempts, we managed to climb out of the tank and, taking cover in the thorny blackberries, were finally able to inspect the damage. The results of the examination were most disappointing. The inclined frontal plate, bent by the explosion, turned out to be the most insignificant of all the damages. The chassis was in the most deplorable condition. Several sections of the tracks fell apart, with small metal parts getting lost along the way; the rest were kept on their word of honor. Not only the tracks themselves were damaged, but even the road wheels. With great difficulty, we somehow tightened up the loose parts, removed the tracks, fastened the torn tracks with new pins... It was obvious that even with the most favorable outcome, these measures would give us the opportunity to walk another couple of kilometers, but nothing more could be done in such conditions it was impossible. I had to climb back into the tank.

Even more unpleasant news awaited us there. The division headquarters reported that air support was impossible, and the artillery was not able to cope with the superior enemy forces. Therefore, we were ordered to return immediately.

The general led the retreat of his units. Tank after tank, platoon after platoon, ours retreated, and the Poles showered them with ferocious fire from their guns. In some areas, progress was so difficult that for some time we forgot about the deplorable condition of our tank. Finally, when the last tank got out of the suburb that had become hell, it was time to think about itself. After consulting, we decided to retreat along the same route we came in. At first everything went calmly, but in this calmness we felt some kind of hidden danger. The ominous silence got on the nerves much more than the sounds of cannonade that had become familiar. None of us doubted that it was no accident that the Poles were hiding, that they were waiting for the right moment to end our lives. Slowly moving forward, we felt with our skin the hateful gaze of an invisible enemy fixed on us... Finally we got to the place where we received the first damage. A few hundred meters away lay the highway leading to the division's location. But the path to the highway was blocked by another barricade - abandoned and silent, like the rest of the surrounding area. We carefully overcame the last obstacle, entered the highway and crossed ourselves.

And then a terrible blow fell on the poorly protected stern of our tank. It was followed by another and another... Four strikes in total. The worst thing happened - we came under targeted fire from an anti-tank gun. The engine roared and the tank made a desperate attempt to escape from the shelling, but in the next second we were thrown to the side by a strong explosion. The engine stalled.
The first thought was - it’s all over, the Poles will destroy us with their next shot. What to do? They jumped out of the tank and rushed to the ground. We are waiting for what will happen... A minute passes, then another... But for some reason there is no shot. What's the matter? And suddenly we look - there is a column of black smoke above the stern of the tank. The first thought is that the engine is on fire. But where does this strange whistling sound come from? We took a closer look and couldn’t believe our eyes - it turns out that a shell fired from the barricade hit smoke bombs located at the rear of our vehicle, and the breeze blew the smoke to the skies. What saved us was that a black cloud of smoke hung just above the barricade and the Poles decided that the tank was on fire.

Revived PzKpfw IV tank

*Brigade headquarters - division headquarters* - the general tried to get in touch, but the radio was silent. Our tank looked terrible - black, dented, with a mangled rear. The completely fallen off caterpillar was lying nearby... No matter how hard it was, I had to face the truth - I had to abandon the car and try to get to my people on foot. We pulled out machine guns, took walkie-talkies and folders with documents and last time looked at the mutilated tank. My heart sank with pain... According to the instructions, the damaged tank was supposed to be blown up so that it would not fall to the enemy, but none of us could decide to do this... Instead, we disguised the vehicle as best we could with branches. In our hearts, everyone hoped that if circumstances were favorable, we would soon return and tow the car to our people...
To this day I remember with horror the way back... Covering each other with fire, in short dashes, we moved from house to house, from garden to garden... When we finally got to ours in the evening, we immediately collapsed and fell asleep .
However, I never managed to get enough sleep. After some time, I opened my eyes in horror and went cold, remembering that we had abandoned our tank... I could see it standing, defenseless, with an open turret, right opposite the Polish barricade... When I woke up again from sleep, then I heard the hoarse voice of the driver above me: “Are you with us?” I didn’t understand, half asleep, and asked: “Where?” “I found a repair car,” he explained briefly. I immediately jumped to my feet, and we went to rescue our tank. It would take a long time to tell how we got there, how we labored over the resuscitation of our mangled car. The main thing is that that night we still managed to put our command “four” into action (The author of the memoirs is most likely mistaken in calling his tank “four”. The fact is that the Pz. Kpfw. IV tanks began to re-equip command vehicles only since 1944. Most likely, we are talking about a command tank based on the Pz. Kpfw. III version D.)
When the awakened Poles tried to stop us with fire, we had already finished our work, so we quickly climbed into the tower and left. We were happy in our souls... Even though our tank was knocked out and badly damaged, we still could not abandon it to the joy of the triumphant enemy! A month-long campaign in conditions of poor Polish roads and loose, swampy soil had the most unfavorable effect on the condition of German tanks. The cars were in urgent need of repair and restoration. This circumstance, among others, influenced the postponement of the Hitler invasion to Western Europe. The Wehrmacht command was able to learn lessons from the experience of the war in Poland and made significant changes to the previously existing scheme for organizing the repair and maintenance of combat vehicles. About efficiency new system repair and restoration of Wehrmacht tanks can be judged by a newspaper article published in one of the German newspapers and reprinted in England in May 1941. The article was called “The Secret of the Combat Power of German Tanks” and contained a detailed list of measures to organize the uninterrupted operation of the repair and restoration service, which was part of each tank division.
“The secret of the success of German tanks is largely determined by the impeccably organized system of evacuation and repair of damaged tanks, which allows all necessary operations to be carried out in the shortest possible time. The greater the distances that tanks have to cover during the march, the greater the importance of a flawlessly adjusted mechanism for repairing and maintaining failed vehicles.
1. Each tank battalion has at its disposal a special repair and restoration platoon for emergency assistance in case of minor damage. This platoon, being the smallest repair unit, is located in close proximity to the front line. The platoon includes engine repair mechanics, radio mechanics and other specialists. The platoon has at its disposal light trucks for transporting the necessary spare parts and tools, as well as a special armored repair and recovery vehicle, converted from a tank, for transporting these parts to the disabled tank. The platoon is commanded by an officer who, if necessary, can call for help from several such platoons and send them all together to the area where emergency assistance is required.

It should be especially emphasized that the efficiency of the repair and restoration platoon directly depends on the availability of the necessary spare parts, tools and appropriate transport. Since time is worth its weight in gold in combat conditions, the chief mechanic of a repair platoon always has at his disposal a supply of basic components, assemblies and parts. This allows him, without wasting a second, to be the first to go to the damaged tank and begin work, while the remaining supply of necessary materials is carried on the truck. If the damage received by the tank is so serious that it cannot be repaired on site, or repairs require for a long time, the car is sent back to the manufacturer.
2. Each tank regiment has at its disposal a repair and restoration company, which has everything necessary equipment and tools. In the mobile workshops of the repair company experienced craftsmen charged the batteries, welding work and complex engine repairs. The workshops are equipped with special cranes, milling, drilling and grinding machines, as well as special tools for plumbing, carpentry, painting and tinsmithing. Each repair and restoration company includes two repair platoons, one of which can be assigned to a specific battalion of the regiment. In practice, both platoons are constantly moving around the regiment, ensuring the continuity of the recovery work cycle. Each platoon had its own truck for transporting spare parts. In addition, the repair and restoration company necessarily included a platoon of emergency repair and recovery vehicles, which deliver failed tanks to a repair shop or collection point, where the tank repair platoon or the entire company was then sent. In addition, the company also includes a weapons repair platoon and radio repair shops.
In practice, both platoons are constantly moving around the regiment, ensuring the continuity of the cycle of restoration work. Each platoon had its own truck for transporting spare parts. In addition, the repair and restoration company necessarily included a platoon of emergency repair and recovery vehicles, which deliver failed tanks to a repair shop or collection point, where the tank repair platoon or the entire company was then sent. In addition, the company also includes a weapons repair platoon and radio repair shops.

3. If well-equipped repair shops exist behind the front line or in territory occupied by us, troops often use them to save transport and reduce the volume of railway traffic. In such cases, all necessary spare parts and equipment are ordered from Germany, and a staff of highly qualified craftsmen and mechanics is assigned.
It can be said with all certainty that without a thoroughly thought-out and clearly functioning scheme for the work of repair units, our valiant tankers would not have been able to cover such vast distances and win such brilliant victories in a real war*.

Before the invasion of Western Europe, the Fours still constituted an absolute minority of Panzerwaffe tanks - only 278 out of 2,574 combat vehicles. The Germans were opposed by more than 3,000 Allied vehicles, most of which were French. Moreover, many french tanks at that time, they were significantly superior to even the “fours” so beloved by Guderian, both in terms of armor protection and weapons efficiency. However, the Germans had an undeniable advantage in strategy. In my opinion, the essence of “blitzkrieg” is best expressed in a short phrase by Heinz Guderian: “Do not touch with your fingers, but punch with your fist!” Thanks to the brilliant implementation of the “blitzkrieg” strategy, Germany easily won the French campaign, in which the PzKpfw IV was very successful. It was at this time that German tanks managed to create a formidable reputation for themselves, many times exceeding the real capabilities of these weakly armed and insufficiently armored vehicles. There were especially many PzKpfw IV tanks in Rommel's Afrika Korps, but in Africa they were assigned an auxiliary role of infantry support for too long.
In February 1941, a review of the German press, regularly published in the British press, published a special selection dedicated to the new PzKpfw IV tanks. The articles indicate that each Wehrmacht tank battalion has at its disposal a company of ten PzKpfw IV tanks, which are used, firstly , as an assault artillery gun, and secondly, as the most important element of rapidly advancing tank columns. The first purpose of the PzKpfw IV tanks was explained simply. Since field artillery is not able to instantly support armored forces in one direction or another, the PzKpfw IV took on its role with its powerful 75 mm cannon. Other advantages of using the "four" stemmed from the fact that its 75-mm gun with maximum range firing over 8,100 m could dictate the time and place of the battle, and the speed and maneuverability of the tak made it an extremely dangerous weapon.
The articles, in particular, contain examples of how six PzKpfw IV tanks were used as an artillery formation against the advancing Allied column, how they were also used as weapons for counter-battery combat, and also acted from an ambush into which British tanks were lured by several German armored vehicles. In addition, PzKpfw IVs were also used in defensive operations, an example of which is the following episode of the African campaign. On June 16, 1941, the Germans surrounded British troops in the Capuzzo area. This was preceded by an unsuccessful attempt by the British to break through to Tobruk and recapture the fortress besieged by Rommel’s troops. On June 15, they rounded the mountain range southeast of the Halfaya pass and advanced northward through Ridot ta Capuzzo almost to Bardia. This is how a direct participant in the events from the British side recalls it:

“Armored vehicles stretched out along a wide front. They moved in twos or threes, and if they met serious resistance, they immediately turned back. The vehicles were followed by infantry in trucks. This was the start of a full-scale attack. Tank crews They shot to kill, the fire accuracy was 80-90%. They positioned their tanks so that their front and sides faced our positions. This allowed the Germans to effectively hit our guns while remaining motionless. They rarely fired while moving. In some cases, PzKpfw IV tanks suddenly opened fire from their guns, and they did not shoot at any specific target, but simply creating a wall of fire as they moved at ranges of 2000-3600 m. All this was done in order to terrify the our defenders. To be honest, they succeeded quite well.”

The first clash between American and German troops in Tunisia occurred on November 26, 1942, when troops of the 190th Tank Battalion of the Afrika Korps in the Mateur area came into contact with the 2nd Battalion of the 13th Regiment of the 1st Tank Division. The Germans in this area had approximately three PzKpfw III tanks and at least six new PzKpfw IV tanks with long-barreled 75-mm KwK 40 guns. This is how this episode is described in the book “Old Ironsides”.
“While enemy forces were gathering from the north, Waters’ battalion wasted no time. Having dug deep lines of defense, camouflaged their tanks and done other necessary work, they not only had time to prepare for the meeting with the enemy, but even carved out an extra day of respite for themselves. The next day the head of a German column appeared. Siglin's company prepared to rush towards the enemy. An assault gun platoon under the command of Lieutenant Ray Wasker moved forward to intercept and destroy the enemy. Three 75-mm howitzers on the chassis of half-track armored personnel carriers, located on the edge of a dense olive grove, allowed the Germans to approach approximately 900 m and opened rapid fire. However, hitting enemy tanks was not such an easy task. The Germans quickly retreated and, almost completely hidden by clouds of sand and dust, responded with volleys of their powerful guns. The shells exploded very close to our positions, but for the time being did not cause any serious damage.

Soon Wasker received an order from the battalion commander to set fire to smoke bombs and withdraw his self-propelled guns. artillery installations to a safe distance. At this time, Siglin's company, consisting of 12 M3 General Stewart light tanks, attacked the enemy's western flank. The first platoon managed to break through closest to the enemy positions, but the Italo-German troops were not at a loss, quickly found the target and brought down the full power of their guns on it. In a matter of minutes, Company A lost six of its tanks, but despite this, it still managed to push back the enemy vehicles, turning them with their rear towards the positions of Company B. This played a decisive role in the battle. Company B brought down the fire of its guns on the most vulnerable spots of the German tanks and, without allowing the enemy to come to their senses, disabled six PzKpfw IVs and one PzKpfw III. The remaining tanks retreated in disarray (In order for the reader to feel the severity of the situation in which the Americans found themselves, it makes sense for comparison to cite the main performance characteristics of the M 3 Stuart light tank: combat weight - 12.4 tons; crew - 4 people; reservation - from 10 to 45 mm; armament - 1 x 37 mm tank gun; 5 x 7.62 mm machine guns; engine "Continental" W 670-9A, 7-cylinder, carburetor power 250 hp; speed - 48 km/h ; power reserve (on the highway) - 113 km.).
To be fair, it should be noted that the Americans did not always emerge victorious from fights with German tank forces. Much more often, circumstances turned out exactly the opposite, and the Americans had to suffer serious losses in military equipment and people. However, in this case they actually won a convincing victory.

Despite the fact that on the eve of the invasion of Russia, Germany significantly increased the production of PzKpfw IV tanks, they still accounted for no more than one sixth of all Wehrmacht combat vehicles (439 out of 3332). True, by that time the number of outdated light tanks PzKpfw I and PzKpfw II and most the Panzerwaffe began to consist of the Czech LT-38 (PzKpfw 38 (1) and the German “troikas”. With such forces, the Germans began to implement the Barbarossa plan. Some superiority of the Soviet Union in military equipment did not confuse the OKW strategists too much; they had no doubt that the German vehicles will quickly cope with this gigantic fleet of obsolete Russian tanks. At first this was the case, but the appearance on the theater of operations of the new Soviet medium tank T-34 and the heavy KV-1 radically changed the situation. Before the creation of the "Panthers" and "Tigers" not a single German tank could withstand competition with these magnificent tanks... At close ranges, they literally shot down weakly armored German technology. The situation changed somewhat with the appearance in 1942 of a new “four”, armed with a long-barreled 75-mm KwK 40 cannon. Now I want to introduce you to an excerpt from the memoirs of a former tankman of the 24th Tank Regiment, which describes the duel of the new “four” "with a Soviet tank in the summer of 1942 near Voronezh.
“There were bloody street battles for Voronezh. Even by the evening of the second day, the valiant defenders of the city did not lay down their arms. Unexpectedly, Soviet tanks, which were the main force of defense, attempted to break through the ring of troops closed around the city. A fierce tank battle ensued." The author then quotes in detail
Sergeant Freyer's report: “On July 7, 1942, on my PzKpfw IV, armed with a long-barreled cannon, I took a position at a strategically important crossroads in Voronezh. Well disguised, we hid in a dense garden near one of the houses. A wooden fence hid our tank from the street side. We received orders to support the advance of our light combat vehicles with fire, protecting them from enemy tanks and anti-tank guns. At first everything was relatively calm, except for a few clashes with scattered groups of Russians, but nevertheless the battle in the city kept us in constant suspense.

It was a hot day, but after sunset it seemed to get even hotter. At about eight o'clock in the evening a Russian T-34 medium tank appeared to our left, clearly intending to cross the intersection we were guarding. Since the T-34 was followed by at least 30 other tanks, we could not allow such a maneuver. I had to open fire. At first, luck was on our side; with the first shots we managed to knock out three Russian tanks. But then our gunner, non-commissioned officer Fischer, radioed: “The gun is jammed!” Here it is necessary to explain that our front sight was completely new, and there were often problems with it, namely that after firing every second or third shell, the empty cartridge case got stuck in the breech. At this time, another Russian tank was fiercely pouring fire on the entire space around itself. Our loader, Corporal Groll, was seriously wounded in the head. We pulled him out of the tank and laid him on the ground, and the radio operator took the vacated loader’s place. The gunner extracted the spent cartridge case and resumed firing... Several more times, NCO Schmidt and I had to feverishly pick at the barrel with an artillery banner under enemy fire in order to pull out the stuck cartridges. The fire from Russian tanks smashed the wooden fence to pieces, but our tank still did not receive a single damage.

In total, we knocked out 11 enemy vehicles, and the Russians managed to break through only once, at the moment when our gun jammed again. Almost 20 minutes passed from the start of the battle before the enemy was able to open targeted fire on us from their guns. In the falling twilight, shell explosions and roaring flames gave the landscape some kind of eerie supernatural look... Apparently, it was from this flame that our people found us. They helped us get to the location of the regiment, stationed on the southern outskirts of Voronezh. I remember that, despite being tired, I could not sleep because of the sweltering heat and stuffiness... The next day, Colonel Rigel noted our merits in the order for the regiment:
"The Fuhrer and the Supreme High Command award Sergeant Freyer of the 4th platoon with the Knight's Cross. In the battle of Voronezh, Sergeant Freyer, commander of the PzKpfw IV tank, destroyed 9 medium Russian T-34 tanks and two light T-60 tanks. This happened at the moment when a column of 30 Russian tanks tried to break through to the city center. Despite the overwhelming majority of the enemy, Sergeant Freyer remained faithful to his military duty and did not leave his post. He allowed the enemy to approach and opened fire on him from his tank. As a result, the Russian tank column was scattered and partially destroyed.Meanwhile, our infantry, after heavy bloody fighting, managed to occupy the city.
In front of the entire regiment, I want to be the first to congratulate Sergeant Freyer on his high award. The entire 24th Tank Regiment is proud of our Knight's Cross and wishes him continued success in future battles. I would also like to take this opportunity to express special gratitude to the other members of the brave tank crew:
To gunner non-commissioned officer Fischer
Driver-mechanic non-commissioned officer Schmidt
Loading Corporal Groll
Radio operator Corporal Muller

and convey your admiration for their actions on July 7, 1942. Your feat will go down in the golden chronicle of the glory of our valiant regiment.”

Production of this tank, created by Krupp, began in 1937 and continued throughout the Second World War.
Like the T-III tank (Pz.III), the power plant is located at the rear, and the power transmission and drive wheels are located at the front. The control compartment housed the driver and gunner-radio operator, who fired from a machine gun mounted in a ball joint. The fighting compartment was located in the middle of the hull. A multifaceted welded turret was mounted here, which housed three crew members and installed weapons.

T-IV tanks were produced with the following weapons:

Modifications A-F, assault tank with 75 mm howitzer;
- modification G, a tank with a 75-mm cannon with a 43-caliber barrel length;
- modifications NK, a tank with a 75-mm cannon with a barrel length of 48 calibers.

Due to the constant increase in the thickness of the armor, the weight of the vehicle during production increased from 17.1 tons (modification A) to 24.6 tons (modifications NK). Since 1943, to enhance armor protection, armor screens were installed on tanks for the sides of the hull and turret. The long-barreled gun introduced on modifications G, NK allowed the T-IV to withstand enemy tanks of equal weight (a 75-mm sub-caliber projectile at a range of 1000 meters penetrated armor 110 mm thick), but its maneuverability, especially the overweight latest modifications, was unsatisfactory. In total, about 9,500 T-IV tanks of all modifications were produced during the war.

Tank PzKpfw IV. History of creation.

In the 20s and early 30s, the theory of the use of mechanized troops, in particular tanks, developed through trial and error; the views of theorists changed very often. A number of supporters of tanks believed that the appearance of armored vehicles would make positional warfare in the style of battles of 1914-1917 tactically impossible. In turn, the French relied on the construction of well-fortified long-term defensive positions, such as the Maginot Line. A number of experts believed that the main armament of a tank should be a machine gun, and the main task of armored vehicles is to fight enemy infantry and artillery; the most radically thinking representatives of this school considered a battle between tanks pointless, since, supposedly, neither side would be able to cause damage to the other. There was an opinion that the victory in the battle would be won by the side that could destroy the largest number of enemy tanks. Special guns with special shells - anti-tank guns with armor-piercing shells - were considered as the main means of fighting tanks. In fact, no one knew what the nature of hostilities would be in a future war. The experience of the Spanish Civil War also did not clarify the situation.

The Treaty of Versailles prohibited Germany from having tracked combat vehicles, but could not prevent German specialists from working on studying various theories of using armored vehicles, and the creation of tanks was carried out by the Germans in secrecy. When Hitler abandoned the restrictions of Versailles in March 1935, the young Panzerwaffe already had all the theoretical developments in the field of use and organizational structure of tank regiments.

In mass production under the guise of "agricultural tractors" there were two types of light armed tanks, PzKpfw I and PzKpfw II.
The PzKpfw I tank was considered a training vehicle, while the PzKpfw II was intended for reconnaissance, but it turned out that the “two” remained the most popular tank of the panzer divisions until it was replaced by the PzKpfw III medium tanks, armed with a 37 mm cannon and three machine guns.

The beginning of the development of the PzKpfw IV tank dates back to January 1934, when the army issued a specification to the industry for a new fire support tank weighing no more than 24 tons, the future vehicle received the official designation Gesch.Kpfw. (75 mm)(Vskfz.618). Over the next 18 months, specialists from Rheinmetall-Borzing, Krupp and MAN worked on three competing designs for the battalion commander's vehicle (Battalionführerswagnen, abbreviated as BW). The VK 2001/K project, presented by the Krupp company, was recognized as the best, with a turret and hull shape similar to the PzKpfw III tank.

However, the VK 2001/K did not go into production, since the military was not satisfied with the six-wheel chassis with medium-diameter wheels on a spring suspension; it needed to be replaced with a torsion bar. The torsion bar suspension, compared to the spring one, ensured smoother movement of the tank and had a greater vertical travel of the road wheels. Krupp engineers, together with representatives of the Arms Procurement Directorate, agreed on the possibility of using an improved design of spring suspension on the tank with eight small-diameter road wheels on board. However, the Krupp company largely had to revise the proposed original design. In the final version, the PzKpfw IV was a combination of the hull and turret of the VK 2001/K with a chassis newly developed by Krupp.

The PzKpfw IV tank is designed according to the classic layout with a rear engine. The commander's position was located along the axis of the tower directly under the commander's cupola, the gunner was located to the left of the breech of the gun, and the loader was to the right. In the control compartment, located in the front part of the tank hull, there were workstations for the driver (to the left of the vehicle axis) and the radio operator (to the right). Between the driver's and gunner's seats there was a transmission. An interesting feature of the tank’s design was the displacement of the turret by about 8 cm to the left of the longitudinal axis of the vehicle, and the engine by 15 cm to the right to allow passage of the shaft connecting the engine and transmission. This design decision made it possible to increase the internal reserved volume on the right side of the hull to accommodate the first shots, which could be most easily reached by the loader. The turret rotation drive is electric.

Tank Museum, Kubinka, Moscow region. German T-4 tank participates in war games

The suspension and chassis consisted of eight small-diameter road wheels grouped into two-wheeled bogies suspended on leaf springs, drive wheels, sloths installed in the rear of the tank, and four rollers supporting the track. Throughout the entire history of operation of the PzKpfw IV tanks, their chassis remained unchanged, only minor improvements were introduced. The prototype of the tank was manufactured at the Krupp plant in Essen and was tested in 1935-36.

Description of the PzKpfw IV tank

Armor protection.
In 1942, consulting engineers Mertz and McLillan conducted a detailed examination of the captured PzKpfw IV Ausf.E tank, in particular, they carefully studied its armor.

Several armor plates were tested for hardness, all of them were machined. The hardness of the machined armor plates on the outside and inside was 300-460 Brinell.
- The 20 mm thick applied armor plates, which enhance the armor of the hull sides, are made of homogeneous steel and have a hardness of about 370 Brinell. The reinforced side armor is not capable of "holding" 2 pound shells fired from 1000 yards.

On the other hand, shelling of a tank carried out in the Middle East in June 1941 showed that a distance of 500 yards (457 m) can be considered as the limit for effectively hitting a PzKpfw IV in the frontal area with fire from a 2-pounder gun. A report prepared in Woolwich on a study of the armor protection of a German tank notes that “the armor is 10% better than similar mechanically processed English armor, and in some respects even better than homogeneous.”

At the same time, the method of connecting armor plates was criticized; a specialist from Leyland Motors commented on his research: “The welding quality is poor, the welds of two of the three armor plates in the area where the projectile hit came apart.”

Power point.

The Maybach engine is designed to operate in moderate climatic conditions, where its performance is satisfactory. At the same time, in tropical or highly dusty conditions, it breaks down and is prone to overheating. British intelligence, after studying the PzKpfw IV tank captured in 1942, concluded that engine failures were caused by sand getting into the oil system, distributor, dynamo and starter; air filters are inadequate. There have been frequent cases of sand getting into the carburetor.

The Maybach engine operating manual requires the use of only 74 octane gasoline with a complete lubricant change after 200, 500, 1000 and 2000 km. The recommended engine speed under normal operating conditions is 2600 rpm, but in hot climates (southern regions of the USSR and North Africa) this speed does not provide normal cooling. Using the engine as a brake is permissible at 2200-2400 rpm; at a speed of 2600-3000 this mode should be avoided.

The main components of the cooling system were two radiators installed at an angle of 25 degrees to the horizontal. The radiators were cooled by an air flow forced by two fans; The fans are driven by a belt from the main engine shaft. Water circulation in the cooling system was ensured by a centrifuge pump. Air entered the engine compartment through an opening on the right side of the hull, covered by an armored damper, and was exhausted out through a similar opening on the left side.

The synchro-mechanical transmission proved efficient, although pulling force in high gears was low, so 6th gear was used only for highway driving. The output shafts are combined with the braking and turning mechanism into a single device. To cool this device, a fan was installed to the left of the clutch box. The simultaneous release of the steering control levers could be used as an effective parking brake.

On tanks of later versions, the spring suspension of the road wheels was heavily overloaded, but replacing the damaged two-wheeled bogie seemed to be a fairly simple operation. The track tension was regulated by the position of the idler mounted on the eccentric. On the Eastern Front, special track extenders, known as "Ostketten", were used, which improved the maneuverability of tanks in the winter months of the year.

An extremely simple but effective device for dressing a slipped caterpillar was tested on experimental tank PzKpfw IV. It was a factory-made belt, which had the same width as the tracks, and was perforated for engagement with the ring gear of the drive wheel. One end of the tape was attached to the slipped track, and the other, after it was passed over the rollers, to the drive wheel. The motor turned on, the drive wheel began to rotate, pulling the tape and the tracks attached to it until the rims of the drive wheel entered the slots on the tracks. The whole operation took a few minutes.

The engine was started by a 24-volt electric starter. Since the auxiliary electric generator saved battery power, it was possible to try to start the engine more times on the “four” than on the PzKpfw III tank. In case of starter failure, or when the lubricant thickened in severe frost, an inertial starter was used, the handle of which was connected to the engine shaft through a hole in the rear armor plate. The handle was turned by two people at the same time; the minimum number of turns of the handle required to start the engine was 60 rpm. Starting the engine from an inertia starter has become commonplace in the Russian winter. The minimum temperature of the engine at which it began to operate normally was t = 50 degrees C with a shaft rotation of 2000 rpm.

To facilitate engine starting in the cold climate of the Eastern Front, a special system was developed known as a "Kuhlwasserubertragung" - a cold water heat exchanger. After the engine of one tank was started and warmed up to normal temperature, warm water from it was pumped into the cooling system of the next tank, and cold water flowed to the already running motor - an exchange of coolants between the running and non-running motors took place. After the warm water warmed up the engine somewhat, you could try starting the engine with an electric starter. The "Kuhlwasserubertragung" system required minor modifications to the tank's cooling system.

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