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LTvz35 / Panzerkampfwagen 35(t)

Following a preliminary bombardment, a PzKpfw 35(t) command tank of 6. Panzer-Division noses cautiously into a Belgian village during the first few days of the Blitzkrieg, May 1940.

Country of Origin:

Czechoslovakia

Manufacturer:

Skoda, Ceskomoravska Kolben Danek (Böhmisch Mährische Maschinenfabrik AG)

Major Variants:

LTvz35 (PzKpfw 35(t))

Role:

Light tank

Operated by:

Germany, Bulgaria, Slovak Free State, Rumania, Hungary

In Service:

1936

Number Built:

434, plus two prototypes

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Overview

After the Munich accords were signed in 1938 and the occupation of the rest of Czechoslovakia followed suit during the spring of 1939, the Wehrmacht confiscated the armoured components of the Czechoslovak army. The main bulk of this force was comprised, at that time, of 219 LTvz35 light tanks that were distributed throughout the four existing Czechoslovak Fast Divisions. These vehicles were promptly incorporated into the German Panzertruppen at a time when Germany had only 98 Panzerkampfwagen (PzKpfw) III tanks available. After some hastily arranged crew training and a few minor modifications to the vehicles, they were ready for hostilities against Poland.

The development of the LTvz35 tank was directly prompted by the rise of the Nationalist Socialist party in neighbouring Germany. Between 1934 and 1937 the Czechoslovak army was given a substantial sum of money to purchase new vehicles. Skoda Plzen (Pilsen), a major Czechoslovakian armament company, developed the SU and later S-II-a prototypes to fulfill expected army requirements. They had, for quite some time, been trying to obtain a monopoly for the supply of tanks to the Czechoslovakian army. The S-II prototype, after winning a design competition, was accepted into service as the standard light tank LTvz35.

Skoda and Ceskomoravska Kolben Danek (CKD) established a cartel, and agreed to split any future tank orders between themselves and so the LTvz35 light tank was manufactured by both. CKD was later renamed Böhmisch Mährische Maschinenfabrik AG (BMM) by the Germans because Kolben was a name of Jewish origin and was therefore, at that time for obvious reasons, unacceptable. A total of 298 examples were manufactured between September 1936 and July 1937, 149 by both Skoda and CKD respectively. Acceptance trials highlighted some design flaws and many modifications were introduced on the shop floor during the production run. In 1938 further additional modifications were introduced, including updating the ZBvz35 machineguns to ZBvz37 models. The LTvz35 thus ended up as a reliable vehicle but with a somewhat tarnished development reputation.

Between 1937 and 1939, 126 examples were produced and exported to Romania. They were designated as R-2’s. Ten vehicles were also manufactured for Afghanistan but were later sold to Bulgaria. They were designated as T-11’s.

The LTvz35 equipped all four of the Czechoslovak Army Fast Divisions and first saw combat in the late summer of 1938 where together with infantry they were used against German Freikorps units with excellent results. Later during 1938 they fought against Hungarian terrorist groups operating in eastern Czechoslovakia, Slovakia and parts of what would now be called the Ukraine. In early 1939 LTvz35 tanks fought regular Hungarian troops in Slovakia.

After the occupation of Czechoslovakia by Germany the tanks, now designated as PzKpfw 35(t)’s, formed the armament of the 11th Panzer Regiment and 65th Panzer Abteilung of the 1st Leichte (Light) Division. In the summer of 1939 they fought during the invasion of Poland.

Following the defeat of Poland, the 1st Leichte Division was re-named the 6th Panzer Division. It was fully equipped with PzKpfw 35(t) tanks and fought throughout the Battle of France during May of 1940. The division later participated in Operation Barbarossa, the invasion of Russia, where it reached the outskirts of Leningrad and Moscow.

The production of the PzKpfw 35(t) did not continue for long. The Wehrmacht did not trust its complicated pneumatic steering system, amongst other things, and preferred the PzKpfw 38(t) instead. The tank was comparable in combat value to the PzKpfw III and served with distinction during both the French and early Russian campaigns. Eventually they were slowly phased out and passed over to rear-area anti-partisan and police units, where 229 of these vehicles were still serving in May of 1945.

The cold Russian winter weather caused a reoccurrence of problems already exhibited whilst still in Czech service. Condensation in the pneumatic steering system would freeze solid rendering the vehicle completely inoperable. Starting up a PzKpfw 35(t) in below-zero temperatures and coaxing it into a combat ready state could reportedly take hours. The end of PzKpfw 35(t)’s career on the eastern front was thus not necessarily caused by the heavier enemy tanks that the Wehrmacht were to soon face, but by the extreme Russian winter.

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Variants

Type

Number Built

Remarks

PzKpfw 35(t)

434 plus two prototypes.

LTvz35 tanks in Czechoslovak army service had a crew of three, consisting of a driver, radio operator and commander/loader/gunner, which was later supplemented by an additional crewmember serving as a loader and machine-gunner in German service, the space for which was obtained by removing ammunition. The vehicles armor was riveted, ranging between 8-mm (0.31-in) (top and bottom armor), 16-mm (0.63-in) (sides and rear, able to withstand a machinegun hit from any distance) and 25-mm (0.98-in) (front) thickness, and weighed ten and a half tonnes. The chassis was separated into crew and engine compartments by a 4-mm (0.16-in) bulkhead, compromising of several net-covered holes, enabling access to important engine parts from inside. These holes were needed for air circulation to the engine. Air was sucked in through holes in the turret and went through the crew compartment into the engine. This arrangement had some advantages and disadvantages. There was a distinct possibility of fire spreading from the engine into the crew compartment and the crew being disturbed by engine noise and heat. On the other hand the crew compartment had perfect ventilation, eliminating serious problems with gun fumes and smoke that were present in many other tanks.

A Skoda T-11 engine powered the vehicle. This 8.52 L (520 cu in) water-cooled 4-cylinder engine produced 120 hp (90 kW ) at 1800 revolutions. It had six forward gears and six reverse gears, and was capable of achieving a top speed of 34 km/h (21 mph). The tracks consisted of 111 steel parts and had an endurance of 6500 km (4040 mi). They were lead by 8 pairs of wheels on each side. The suspension system was very complicated, but efficient in terrain. The German army commission had in 1939, tried on purpose, to shed a track in heavy terrain, but failed miserably. The tank had a unique pneumatic steering system, which provided for very precise control, requiring minimal force, thus substantially limiting driver fatigue. Manual control was present as a backup should any problems arise.

The LTvz35 or PzKpfw 35(t) tank was armed with a 3.7-cm (1.46-in) Skoda A-3vz34 UV gun, called a 3.7-cm (1.46-in) KwK 34 (t) by the Germans. It was slightly less powerful than the A-7 variant used on the PzKpfw 38(t). Its disadvantage was the long recoil and outside-mounted recoil brake, which was susceptible to damage. Horizontal movement was made by hand traverse of the entire turret, while fine adjustments were done with a hand-wheel. The gun could penetrate 45-mm (1.77-in) of cemented armor set at a right angle from 500 m (1640 ft), and a 25-mm (0.98-in) of armor sloped at 30 degrees at 1000 m (3281 ft). It was semi-automatic with a rate of fire of 15 rounds per minute. The tank also had two ZBvz37 heavy machineguns, called MG37(t) by the Germans, one in the turret and one for use by the radio operator. The same machineguns, built under licence agreements, were called BESA and were used by the British in most of their armored vehicles. The radio operator fired the chassis machinegun, but it could also be set to a fixed position and be fired by the driver. The guns were aimed with a 2.6 magnification scope with a field of view of 25 degrees. The tanks carried 78 rounds of cannon ammunition (24 AP and 54 HE rounds) and 2700 machinegun rounds. Whilst serving in the Wehrmacht they carried 72 rounds of cannon ammunition and 1800 machinegun rounds.

The Germans made a few modifications after taking over the vehicles. These included the additional crewmember and replacing the morse-code radio with a phonic one. The lights-and-switches intercom was also replaced with a voice communication system.

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Specifications

Model

LTvz35 / PzKpfw 35(t)

Crew

Four: Commander/Gunner, Driver, Radio Operator, Loader.

Dimensions

Length

4.90 m (16.08 ft)

Width

2.06 m (6.76 ft)

Height

2.37 m (7.78 ft)

Powerplant

Type

Skoda T11

Cubic Capacity

8.52 L (520 cu in)

Cylinders

4-cylinder

Horsepower

120 hp (90 kW)

Weights and Loads

Weight

10,500 kg (23,149 lb)

Gasoline Capacity

153 L (34 gal)

Performance

Maximum Speed

34 km/h (21 mph)

Range

120 km (75 mi)

Armament and Equipment

Armament

Turret mounted 3.7-cm (1.46-in) KwK34(t) L/40 cannon with 7.92-mm (0.31-in) MG37(t) machine gun.

Hull mounted 7.92-mm (0.31-in) MG37(t) machine gun.

Armour  (mm (in)@degrees to the horizontal)

Hull Front :

Hull Sides :

Hull Rear :

Hull Top :

Superstructure Front :

Superstructure Sides :

Superstructure Rear :

Superstructure Top :

Turret Front :

Turret Sides :

Turret Rear :

Turret Top :

Gun Mantlet :

25 (0.98) @ 30°

16 (0.63) @ 0°

16 (0.63) @ 0°

8 (0.31) @ 90°

25 (0.98) @ 17°

16 (0.63) @ 0°

15 (0.59) @ 60°

8 (0.31) @ 85 & 90°

25 (0.98) @ 10°

15 (0.59) @ 14°

15 (0.59) @ 15°

8 (0.31) @ 81 & 90°

25 (0.98) @ round

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