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Soviet Union's T-26C, T-26S, T-26 Model 1937 light tank

Design

Due to experiences in Spain, China, and Finland designers upgraded the T-26 to extend its life in service.

The amount of fuel carried was increased to give better range.

A few T-26S' received searchlights for use at night.

Armor

The front hull armor was increased and the turret had thicker and more sloping armor. After experience against the Japanese welded contruction replaced the riveted construction of the earlier models.

Variants

  • T-26-S (Model 1937), T-26C, T-26E: First appeared in 1937. Had armor increased to 25 mm. New semi-conical turret was fitted. Construction was welded. Had 45 mm and 2 machine guns. Weight went up to 10.3 tons. Radios were also installed. Some T-26B-2 were upgraded with the new turret.
  • OT-133: Flamethrower version of T-26-S. It carried a 1939 model flamethrower. It weighed 9.5 tons and carried 400 liters of oil and 4 bottles of compressed air. Fuel was stored in the turret. Against Finland many of them had armor added to the upper hull and turret.

Specifications

  T-26 C
Crew 3
Physical Characteristics  
Weight 9.6 tons
Length 4.5 m
Height 2.65 m
Width 2.45 m
Ground clearance 0.37 m
Ground contact length  
Ground pressure 0.66 (kg/cm2)
Turret ring diameter  
Armament  
Main 45 mm
45 mm L/46
Secondary  
MG 2: MGs
Side arms  
Quantity  
Main 169
Secondary  
MG 2,405
Side arms  
Armor Thickness (mm)  
Hull Front, Upper 16
Hull Front, Lower  
Hull Sides, Upper 16
Hull Sides, Lower  
Hull Rear 16
Hull Top 7-11
Hull Bottom 10
Turret Front 16
Turret Sides 16
Turret Rear 16
Turret Top 10
Engine (Make / Model) Air Cooled
Bore / stroke  
Cylinders 4
Net HP 91@2,100 rpm
Power to weight ratio  
Transmission 5 forward, 1 reverse
Fuel type Gasoline
Octane  
Capacity 285 liters
Performance  
Traverse  
Speed - Road 27.3 kph
Speed - Cross Country  
Range - Road 345 km
Range - Cross Country 175 km
Turning Radius 6.6 m
Elevation Limits  
Fording depth 0.76 m
Trench crossing  
Vertical Obstacle  
Climbing ability  
Suspension (Type) Leaf Springs
Wheels each side 8
Return rollers each side  
Track length  
Tires  
Track width 260 mm
Track centers/tread  
  T-26 1937
Crew

3

Physical Characteristics  
Weight 10.3 tons, 10,465 kg
Length 15' 9"
4.62 m, 4.8 m
Height 7.65', 7' 8"
2.33-2.41 m , 2.33 m
Width

7' 10"
2.44 m , 2.39 m

Ground clearance 0.38 m
Ground contact length  
Ground pressure 0.65 kg/(cm)
Turret ring diameter  
Armament  
Main 45 mm 1934, 45 mm
Secondary  
MG 1 - 3: 7.62 mm DT MG
2: 7.62 mm
Side arms  
Quantity  
Main 165
Secondary  
MG 3,654
Side arms  
Armor Thickness (mm)  
Hull Front, Upper 15
Hull Front, Lower 15
Hull Sides, Upper 15
Hull Sides, Lower 15
Hull Rear 15
Hull Top 10
Hull Bottom 6
Turret Front 15
Turret Sides 15
Turret Rear 15
Turret Top 10
Engine (Make / Model) GAZ T-26
Bore / stroke 4 stroke
Cylinders 4
Net HP 91@2,200 rpm
Power to weight ratio 8.7 HP/ton
Transmission 5 forward, 1 reverse
Fuel type Gasoline
Octane  
Capacity 292 liters
Performance  
Traverse 360°
Speed - Road

30 kph, 28 kph

Speed - Cross Country 12.4 mph
Range - Road 150-225 km , 200 km
Range - Cross Country  
Turning Radius  
Elevation Limits  
Fording depth 0.9 m
Trench crossing 1.8 m
Vertical Obstacle 0.75 m
Climbing ability 32°
Suspension (Type)  
Wheels each side  
Return rollers each side  
Track length  
Tires  
Track width  
Track centers/tread  
  T-26 S
Crew

3

Physical Characteristics  
Weight 10.3 tons
10,460 kg
Length 15' 4", 15' 9"
4.8m
Height 7' 10" , 7.65'
2.39 m
Width

7' 8", 8'
2.33 m

Ground clearance  
Ground contact length  
Ground pressure  
Turret ring diameter  
Armament  
Main 45 mm Model 1938 L/46
45 mm
45 mm L/46 A/TK
Secondary  
MG 2: 7.62 mm DT MG
2: MG
Side arms  
Quantity  
Main 165
Secondary  
MG 3,654
Side arms  
Armor Thickness (mm) 10 - 25
Hull Front, Upper 25
Hull Front, Lower  
Hull Sides, Upper 16
Hull Sides, Lower  
Hull Rear  
Hull Top 10
Hull Bottom 10
Turret Front 10 - 25
Turret Sides  
Turret Rear  
Turret Top  
Engine (Make / Model) GAZ T-26
Bore / stroke  
Cylinders 8
Net HP 88 - 91
Power to weight ratio  
Transmission  
Fuel type Gasoline
Octane  
Capacity  
Performance  
Traverse 360°
Speed - Road

17 mph, 17.4 mph
28 kph

Speed - Cross Country 12.4 mph
Range - Road 124 miles, 215 miles
200 km
Range - Cross Country 109 miles
Turning Radius  
Elevation Limits  
Fording depth  
Trench crossing  
Vertical Obstacle  
Climbing ability  
Suspension (Type)  
Wheels each side  
Return rollers each side  
Track length  
Tires  
Track width  
Track centers/tread  

Sources:

  1. Russian Tanks of World War II Stalin's Armored Might, by Tim Bean & Will Fowler, 2002
  2. Russian Tanks and Armored Vehicles 1917-1945, by Wolfgang Fleischer, 1999
  3. The Encyclopedia of Tanks and Armored Fighting Vehicles - The Comprehensive Guide to Over 900 Armored Fighting Vehicles From 1915 to the Present Day, General Editor: Christopher F. Foss, 2002
  4. Panzer Truppen The Complete Guide to the Creation and Combat Employment of Germany's Tank Force 1933-1942, Thomas L. Jentz, 1996
  5. Tanks of the World, 1915-1945, Peter Chamberlain, Chris Ellis, 1972
  6. The Encyclopedia of Weapons of World War II, Chris Bishop, 1998
  7. Airfix Magazine Guide 22 Russian Tanks of World War 2, John Milsom and Steve Zaloga, 1977
  8. Tanks of World War II, Duncan Crow, 1979
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