World War II Vehicles, Tanks and Airplanes, picture of P-51 Mustang
World War II Vehicles, Tanks and Airplanes, picture of T-34/85
World War II Vehicles, Tanks and Airplanes, picture of Fw-190
World War II Vehicles, Tanks and Airplanes, picture of Churchill
wwiivehicles.com ©2017
Search:
Czechoslovakia Flag (2K)

Czechoslovakia's TNH P-S light tank

Design

In 1937 the Czechoslovakian army wanted a replacement for the LT vz 35. Two designs were developed by Skoda and CKD (Ceskomoravska Kolben Danek of Prague, after 1940 Böhmisch-Mährische Maschinenfabrik AG). The Skoda was the S-11-a and S-11-b. The CKD model was basically an improved LT vz 35 with the transmission and engine from a TNH tank.

The floor under the fuel tanks were secured by small bolts. This was made to blow out the floor if an explosion happened inside the tank to reduce the damage internally.

Suspension

There were 4 large bogie wheels mounted in pairs on each side on longitudinal leaf springs. The drive was in the front by sprockets with 19 teeth. These were attached via a pinion to a cross-shaft. This was attached to the gearbox which then had a propeller shaft go to the rear and meet up with the engine.

Armament

The coaxial MG could be fired independently of the main armament as it was ball mounted.

The 37.2 mm Skoda A7 L47.8 gun's elevation gear could be locked for firing.

Engine

The engine was mounted vertically in the center of the rear compartment.

The drive sprocket was in the front with the idler in the rear.

A Praga-Wilson pre-selector gearbox simplified the gear changing and drove the front sprocket by a 2-stage epicyclic steering gear.

Crew

The driver sat on the right and the machine gunner to the left.

After the Germans took possession of the TNHPs they removed some of the ammunition to make room for a loader.

Construction

The hull and turret were riveted with the superstructure bolted in place.

Turret

The commander's cupola didn't rotate and had four periscopes.

Hull

Between the driver and the hull machine gunner was the gearbox.

New Designs T-15 and T-25

In 1942 or 1943 the Heereswaffenamt (Wa.Prüf.6) gave Skoda specifications for a 10.5 ton reconnaissance tank and a 22 ton medium tank. They were to be based on a longer and wider TNHP-S chassis.

The T-15 was to have a 50 mm gun. Its armor protection was to be 50 mm in front, 20 mm in the sides, and 15 mm protecting the rear. The armor plates were angled more.

The T-25 was to be armed with a semi-automatic 75 mm gun.

Prototype

After extensive trials the TNH P-S was selected and on July 1, 1938 it was designated the standard light tank of the Czechoslovakian army.

After tests 150 were ordered.

T-15

The prototype T-15 had a fake 37 mm gun mounted in the turret.

Production

  • TNH P-S:
  • T-15: 1

Variants

  • TNH P-S (Schwer) : Germans ordered the armor to be increased.
  • LT vz 38: Production designation.
  • T-15: Prototype requested by Germany. One prototype built.
  • T-25: Prototype requested by Germany. Never built.
  • Heuschrecke (Grasshopper): Was to be a T-25 with a 10.5 cm le.F.H.43(sft) Skoda L/30 gun. Mockup built.
  • Germany

Usage

Production ended in April 1942. 196 were exported to Bulgaria (10), Hungary (102), Romania (50), Slovakia (69), Afghanistan, Latvia, Peru, Sweden (built as the Strv.m/41), Switzerland, Yugoslavia, and one to Britain.

Saw action in Poland, Belgium, France, Yugoslavia, Greece, and Russia.

Czechoslovakia Never Used

None had entered service by the time of the German occupation.

Contributed to German Success

During 1940 - 1941 this vehicle provided 1/4 of the German tank strength.

Specifications

  TNH P-S (S=schwer)
Crew Commander, gunner, loader, driver
4
Physical Characteristics  
Weight 21,385 lb
8.5 tons, 9.25 tons, 9.7 tons, 10 tons
9,400 kg, 9,700 kg
Length 14' 11", 14.91', 15' 1", 15' 3"
4.546 m, 4.55 m, 4.6 m
Height 7' 2", 7.76', 7' 7", 7' 10"
2.31 m, 2.311 m, 2.4 m
Width 6.74', 6' 11", 7'
2.11 m, 2.13 m, 2.133 m
Ground clearance 1.32'
Ground contact length 9.56'
Ground pressure 10.2 psi
0.57 kg/sq cm
Turret ring diameter 3' 11.5"
Armament  
Main 1: 3.7 cm
1: 37 mm Skoda A7 L/47.8
1: 37.2 mm Skoda A7
OR 1: 3.7 cm KwK L/45
OR 1: 37 mm KwK L/40
Secondary  
MG 2: 7.92 mm MG
MG - coaxial 1: MG
1: 7.92 mm MG
1: 7.92 mm 7165 CZ Type 37 MG
MG - hull 1: MG
1: 7.92 mm MG
1: 7.92 mm 7165 CZ Type 37 MG
Side arms  
Quantity  
Main 90, 90 (HE and AP)
Secondary  
MG 2,550
Side arms  
Armor Thickness (mm) Front: 50
Side: 30
10 - 25, 10 - 26, 25
Hull Front, Upper 25
Hull Front, Lower

25

Hull Sides, Upper 19
Hull Sides, Lower 15
Hull Rear 12
Hull Top 10
Hull Bottom 8
Turret Front 25
Turret Sides 15
Turret Rear 15
Turret Top 10
Engine (Make / Model) Praga EPA
Cylinders 6, I-6, 16
Cooling Water
Net HP 125, 150
125@2,200 rpm
Late models: 150
Transmission Praga Wilson pre-selector
5 forward, 1 reverse.
Electrical system 12 volt
Fuel (type) Gasoline
Octane  
Capacity

49 gallons

Fuel consumption - road 2.6 mpg
Performance  
Traverse 360°, hand
Speed - Road 25 mph, 26 mph, 26.1 mph, 35 mph
42 kph
Speed - Cross Country 9.3 mph
15 kph
Range - Road 125 miles, 155.3 miles
200 km, 250 km
Range - Cross Country 89 miles
Turning Radius 14.9'
Elevation Limits +12° to -6°
Fording depth 3'
0.9 m
Trench crossing 6.1', 6' 2"
1.879 m
Vertical Obstacle 2.6', 2' 7"
0.787 m
Climbing ability 60%, 30°
Suspension (Type) Rubber tired wheels suspended in pairs on leaf springs
Wheels each side 4
Wheel diameter  
Return rollers each side 2
(supported inside of track only)
Tracks (Type) Magnesium skeleton
Track length  
Tires  
Links 87-90
Pitch 4.09"
Track width 11.5"
Track centers/tread 6.16'
  TNH
Crew 3-4
Physical Characteristics  
Weight 8.5 tons
Length 14' 9.5"
Height  
Width 6' 8.75"
Ground clearance  
Ground contact length  
Ground pressure  
Turret ring diameter  
Armament  
Main 37 mm
Secondary  
MG 2: MGs
Side arms  
Quantity  
Main  
Secondary  
MG  
Side arms  
Armor Thickness (mm) 25
Hull Front, Upper  
Hull Front, Lower  
Hull Sides, Upper  
Hull Sides, Lower  
Hull Rear  
Hull Top  
Hull Bottom  
Turret Front  
Turret Sides  
Turret Rear  
Turret Top  
Engine (Make / Model) Praga
Cylinders  
Cooling  
Net HP  
Transmission  
Electrical system  
Fuel type  
Octane  
Capacity  
Fuel consumption - road  
Performance  
Traverse  
Speed - Road 26.1 mph
Speed - Cross Country  
Range - Road  
Range - Cross Country  
Turning Radius  
Elevation Limits  
Fording depth  
Trench crossing  
Vertical Obstacle  
Climbing ability  
Suspension (Type)  
Wheels each side  
Wheel diameter  
Return rollers each side  
Tracks (Type)  
Track length  
Tires  
Links  
Pitch  
Track width  
Track centers/tread  
  TNHP
Crew Commander, gunner, loader/operator, driver
4, 3-4
Physical Characteristics  
Weight 8 tons, 9 tons
Length 14' 9.5", 15' 3"
Height 6' 9.5", 7' 2"
Width 6' 9.5", 7'
Ground clearance  
Ground contact length  
Ground pressure  
Turret ring diameter 3' 11.5"
Armament  
Main 37 mm
37 mm Skoda A-7 L/47.8
Secondary  
MG 2: 7.92 mm MGs
MG - coaxial 1: 7.92 mm Besa MG
MG - hull 1: 7.92 mm Besa MG
Side arms  
Quantity  
Main  
Secondary  
MG  
Side arms  
Armor Thickness (mm) 25
Front: 25
Side: 19
Rear: 15
Hull Front, Upper  
Hull Front, Lower  
Hull Sides, Upper  
Hull Sides, Lower  
Hull Rear  
Hull Top  
Hull Bottom  
Turret Front  
Turret Sides  
Turret Rear  
Turret Top  
Engine (Make / Model) Praga
Praga TNHP OHV
Cylinders 6, I-6
Cooling Water
Net HP 125 @ 2,200 rpm
Transmission Praga-Wilson pre-selector
5 speed
Electrical system 12 volt Scintilla
Fuel type  
Octane  
Capacity 49 gallons
Fuel consumption - road  
Performance  
Traverse  
Speed - Road 26.1 mph, 35 mph
Speed - Cross Country  
Range - Road 125 miles
Range - Cross Country  
Turning Radius  
Elevation Limits  
Fording depth  
Trench crossing  
Vertical Obstacle  
Climbing ability  
Suspension (Type) Rubber tired, mounted on a cranked stub axle, controlled by semi-elliptic spring
Wheels each side 4
Wheel diameter 2' 5"
Return rollers each side 2
Tracks (Type)  
Track length  
Tires  
Links  
Pitch  
Track width 11.55"
Track centers/tread  
  TNH-Sv
Crew 3-4
Physical Characteristics  
Weight 10.5 tons
Length  
Height  
Width  
Ground clearance  
Ground contact length  
Ground pressure  
Turret ring diameter  
Armament  
Main 37 mm
Secondary  
MG 2: 8 mm MGs
Side arms  
Quantity  
Main  
Secondary  
MG  
Side arms  
Armor Thickness (mm)  
Hull Front, Upper  
Hull Front, Lower  
Hull Sides, Upper  
Hull Sides, Lower  
Hull Rear  
Hull Top  
Hull Bottom  
Turret Front  
Turret Sides  
Turret Rear  
Turret Top  
Engine (Make / Model)  
Cylinders  
Cooling  
Net HP  
Transmission  
Electrical system  
Fuel type  
Octane  
Capacity  
Fuel consumption - road  
Performance  
Traverse  
Speed - Road  
Speed - Cross Country  
Range - Road  
Range - Cross Country  
Turning Radius  
Elevation Limits  
Fording depth  
Trench crossing  
Vertical Obstacle  
Climbing ability  
Suspension (Type)  
Wheels each side  
Wheel diameter  
Return rollers each side  
Tracks (Type)  
Track length  
Tires  
Links  
Pitch  
Track width  
Track centers/tread  

Sources:

  1. Tanks of the World, 1915-1945, Peter Chamberlain, Chris Ellis, 1972
  2. The Encyclopedia of Weapons of World War II, Chris Bishop, 1998
  3. Tanks - Over 250 of the World's Tanks and Armored Fighting Vehicles, Chris Chant, 2004
  4. Tanks of World War II, Duncan Crow, 1979
  5. German Tanks and Armoured Vehicles 1914 - 1945, B. T. White, 1966
  6. Profile AFV Weapons #22 Panzerkampfwagen 38(t) & 35(t), John Milsom, 1970
  7. World War I and II Tanks, George Forty, 2012
20th Century American Military History Crucial Site