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Soviet Union's T-26B, T-26 Model 1933 light tank

Design

In 1933 a new turret was fitted to the T-26 which extended over the width of the hull.2 This was designed by the Bolshevik Leningrad factory and KhPZ Kharkov works.1 The turret could mount a 45 mm Model 1932 gun.1

Main Armament

A 37 mm BS 3 (1930 model) was installed as the main armament for the T-26 Model 1932.2

The T-26 Model 1933 had a 45 mm gun installed.2

Turret

The seats of the loader and commander were welded in place to the floor.2

When traveling over rough terrain the gun was very hard to aim as the gun and turret weren't properly balanced.2

Variants

  • T-26B, T-26 Model 1933: Prototype was built with a 37 mm gun in the left turret and the right turret was removed. This proved unsatisfactory and a turret similar to the BT tanks was installed.
  • T-26B-1: Initially had a cylindrical turret with a 37 mm gun.6 Later vehicles had a 45 mm gun in a cast mantlet. One turret was installed as it was discovered that by putting the 37 mm gun in one of the 2 turreted models, one of the turrets could break from the stress. Early models had 37 mm. The hull was welded.
  • T-26B-2 (Model 1933)1: Initially had a 37 mm gun.1 Improved model with cast turret and 45 mm gun and coaxial MG.2 Some had a rear MG as well, and others had antiaircraft machine guns installed.2 The turret had a overhang that had a gun counterweight in the turret. During production improvements were made to the visor and pistol ports, storage chests were attached to the track aprons, and aluminum road wheels installed.2
  • T-26B-1(V), T-26B-2(V), T-26TU2: Commander's tank with a frame aerial around turret.2 The radio had a range of 2 km and a power of 15-20 watts.2
  • T-26 Pch2: An experimental wading vehicle that had a snorkel attached and could wade in 5 meters of water.2 It was a modified T-26 (1933), and water penetrated around the riveted armor.
  • AT-12: Experimental version that added wings and twin boom tail mounting to turn it into a glider.2 It was a modified T-26 (1933). It was designed by the O. K. Antonov design bureau.2
  • AT-26, AT-26 SP4: (Artilleriskiy Tank) Artillery version with 76.2 mm PS-3 gun and one MG. It was designed by S. Ginzburg in 1932 at the Kirov works in Leningrad. It had body armor of 15 mm, and the gun could traverse 20° and elevate from -1.5° to +43°. It was 1.95 m high, weighed 9.5 tons, and had a crew of 3-4. Used T-26B chassis.4
  • OT-1301,2,4: Flame-thrower version1,2 of B4, B-1 or B-2 that started production in 19382. It used the 1933 model of T-26 and had a 1938 model flamethrower installed instead of the 45 mm gun.2 It could reach targets up to 50 meters and could fire 70 1-second bursts.2 It carried between 135 and 400 liters of oil.2 One change made during production was modifications to the mantlet.2 Some carried the 7.62 mm DT MG coaxially and one in the rear of the turret.2 Crew was 2 men and weighed around 9.3 tons.2 It saw action in Manchuria against the Japanese and against Finland in Karelia in 1939-1940.2

Specifications

  T-26 B
Crew

34,5,6

Physical Characteristics  
Weight 9.2 - 9.6 tons4, 9.4 tons6, 9.5 tons5
Length 15.76'4, 16'6, 16' 3"5
4.88 m6
Height 7.95'4, 7' 11"6, 8'5
2.41 m6
Width 7.85'4, 8'5, 11' 2.25"6
3.41 m6
Ground clearance  
Ground contact length 9' 9"4
Ground pressure  
Turret ring diameter  
Armament  
Main 45 mm A/TK4
45 mm L/465
OR 37 mm4
Secondary  
MG 2 coaxial, bow
Side arms  
Quantity  
Main 92 - 1004, 169
Secondary  
MG 2,405, 3,0004
Side arms  
Armor Thickness (mm) 155
Hull Front, Upper 154
Hull Front, Lower  
Hull Sides, Upper 154
Hull Sides, Lower  
Hull Rear  
Hull Top 6 - 104
Hull Bottom 6 - 104
Turret Front 6 - 154
Turret Sides  
Turret Rear  
Turret Top  
Engine (Make / Model) GAZ T-264,6
Bore / stroke  
Cylinders 84,6
Net HP 816, 88 - 914, 905
Power to weight ratio  
Transmission  
Fuel type Gasoline4,6
Octane  
Capacity  
Performance  
Traverse 360°
Speed - Road 17.4 mph6, 18 mph4,5
28 kph6
Speed - Cross Country 12.4 mph
Range - Road 108.7 miles6, 140 miles4, 190 miles5
175 km6
Range - Cross Country 110 miles4
Turning Radius  
Elevation Limits  
Fording depth  
Trench crossing 6' 2.8"6
1.9 m6
Vertical Obstacle 2' 7"6
0.79 m6
Climbing ability  
Suspension (Type)  
Wheels each side  
Return rollers each side  
Track length  
Tires  
Track width 10.2"4
Track centers/tread  
  T-26 1933
Crew

32

Physical Characteristics  
Weight 9.4 tons2
Length 4.88 m2
Height 2.41 m2
Width

2.41 m2

Ground clearance 0.38 m2
Ground contact length  
Ground pressure 0.65 kg/(cm2)2
Turret ring diameter  
Armament  
Main 45 mm 19322
Secondary  
MG 1 or 2: 7.62 mm DT MG2
Side arms  
Quantity  
Main 1002
Secondary  
MG 4,0002
Side arms  
Armor Thickness (mm)  
Hull Front, Upper 152
Hull Front, Lower 152
Hull Sides, Upper 152
Hull Sides, Lower 152
Hull Rear 152
Hull Top 102
Hull Bottom 62
Turret Front 152
Turret Sides 152
Turret Rear 152
Turret Top 102
Engine (Make / Model) GAZ T-262,3
Bore / stroke 4 stroke2
Cylinders 42
Net HP 91@2,200 rpm2
Power to weight ratio 9.2 HP/ton2
Transmission 5 forward, 1 reverse
Fuel type Gasoline2
Octane  
Capacity 285 liters2
Performance  
Traverse 360°
Speed - Road

28 kph2

Speed - Cross Country 12.4 mph
Range - Road 375 km2
Range - Cross Country  
Turning Radius  
Elevation Limits  
Fording depth 0.9 m2
Trench crossing 1.8 m2
Vertical Obstacle 0.75 m2
Climbing ability 32°2
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. Airfix Magazine Guide 22 Russian Tanks of World War 2, John Milsom and Steve Zaloga, 1977
  5. Tanks of World War II, Duncan Crow, 1979
  6. The Encyclopedia of Weapons of World War II, Chris Bishop, 1998
20th Century American Military History Crucial Site