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Soviet Union's Flag

Soviet Union's KS-1, KS-2, KS-3 light tanks

Design

Communication was via flags.

Specifications

  KS-1, KS-2, KS-3
Crew 2
Physical Characteristics  
Weight 6.89 tons, 6.9 tons
7,000 kg
Length w/gun 12.1', 16' 5"
5 m
With tail: 16.5'
Length w/o gun 12.1'
With tail: 16.5'
Height 7' 6"
2.25 m
Width 5' 9"
1.75 m
Width over tracks 5.7'
Ground clearance 16.5"
Ground contact length 6.8'
Ground pressure 5.69 psi
Turret ring diameter  
Armament  
Main 37 mm SA-18
KS-1, KS-3: 37 mm Hotchkiss L/21
Secondary  
MG KS-2, KS-3: 7.62 mm Hotchkiss MG
Side arms  
Quantity  
Main 250
Secondary  
MG 3,000
Side arms  
Armor Thickness (mm) 8-16
Turret: 8-16
Hull Front, Upper 16
Hull Front, Lower  
Hull Sides, Upper 8
Hull Sides, Lower  
Hull Rear 8
Hull Top 6
Hull Bottom 6
Turret Front  
Turret Sides  
Turret Rear  
Turret Top  
Engine (Make / Model) Fiat AMO
Bore / stroke  
Cooling Thermo-syphon
Cylinders 4
Capacity  
Net HP 33.5-45@1,500 rpm
45
Power to weight ratio 6.5
Compression ratio  
Transmission (Type) Sliding gear
4 forward, 1 reverse
Steering Clutch and brake
Steering ratio  
Starter  
Electrical system  
Ignition  
Fuel (Type) Gasoline
Octane  
Quantity 19.85 gallons
Road consumption  
Cross country consumption  
Performance  
Traverse 360°
Speed - Road 5 mph, 8.3 mph
8 kph
Speed - Cross Country 5 mph
Range - Road 30 miles, 37.5 miles
50 km
Range - Cross Country 22 miles
Turning radius Pivots
Elevation limits -5° to +35°
Fording depth 1.7'
Trench crossing 5.9'
Vertical obstacle 1.9'
Climbing ability 38°
Suspension (Type) Pivoted double arms and double bogies, coil and leaf springs
Wheels each side 4 double bogies
Return rollers each side  
Tracks (Type) Flat steel plates
Length  
Width 16"
Diameter  
Number of links 32
Pitch 10"
Tire tread  
Track centers/tread 4.5'
Production  

Sources:

  1. 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
  2. Russian Tanks 1900-1970, The Complete Illustrated History of Soviet Armoured Theory and Design, John Milsom,1970
20th Century American Military History Crucial Site