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United States' M2 Half Track Car

Photos

M2 half track:
United States' M2 half track
Aberdeen Tank Museum

Design

Standardized in 1940.1 Was to be used primarily for gun towing.1

Could carry 10 men.5 No rear door and shorter than M3. Skate rail for AA MGs on the inside. Unditching roller or winch (10,000 lb capacity) attached to front. Radio equipped.

Could be used to tow 105 mm howitzer.5

Production

  • M2: 3,7001
    • Manufacturer: Autocar, White
  • M2A1: 2,3001
    • Manufacturer: Autocar, White

Variants

  • M2:
  • M2A1: Had M49 ring mount for .50 cal MG over co-driver's seat.1 Rail was removed. 2 pintles were fitted on the sides and one on the rear for optional .30 cal MG.

Specifications

  M2
Crew Commander, driver, passengers (7)
101,5
Physical Characteristics  
Weight 17,600 lb5, 19,800 lb, 19,195 lb
Length 19' 6.75"5
Length - with roller 19' 6.75"
Length - with winch 20' 1 5/8"
Height 6' 0.5"5, 7' 5"
Width 6' 5.25"5, 7' 2.5", 7' 3.5"
Width over tracks  
Ground clearance 11 3/16"5, 17 1/8"
Ground contact length 46.75", 60"5
Ground pressure  
Turret ring diameter  
Armament  
Main .50 cal Browning M2-HB
.50 cal HB M2 MG5
Secondary  
MG .30 cal Browning M1919A4
1 or 2: .30 cal M1917A1 or M1919A4 MG5
Side arms .45 submachine gun
10 grenades5
14 M1 anti-tank mines5
Quantity  
Main 5405, 700
Secondary  
MG 7,7505
Side arms 540
Armor Thickness (mm)  
Hull Front, Upper 0.5"@0°5
12
Hull Front, Lower 6
Hull Sides, Upper 0.25"@0°5
6
Hull Sides, Lower 6
Hull Rear 0.25"@0°5
6
Hull Top  
Hull Bottom  
Turret Front  
Turret Sides  
Turret Rear  
Turret Top  
Engine (Make / Model) White 160AX5
Bore / stroke  
Cooling Water5
Cylinders 65
Capacity  
Net HP 1475
Power to weight ratio  
Compression ratio  
Transmission (Type) 4 forward, 1 reverse5
Double range transfer case5
Steering Front wheels, Ross steering gear5
Steering ratio  
Starter  
Electrical system  
Ignition  
Fuel (Type) Gasoline5
Octane  
Quantity 60 gallons5
Road consumption 3.3 mpg5
Cross country consumption  
Performance  
Traverse  
Speed - Road 40 mph, 45 mph5
Speed - Cross Country  
Range - Road 175 miles, 200 miles5
Range - Cross Country  
Turning radius 30'5, 59'
Elevation limits -15° to +85°
Fording depth 2' 8"5
Trench crossing  
Vertical obstacle 1'5
Climbing ability 30° slope5
Suspension (Type) Front wheels: Semi elliptic springs5
Rear tracks: Vertical volute springing5
Wheels each side Tires: 15
Tracks: Dual wheel 4 wheeled bogies5
Return rollers each side 15
Tracks (Type) Endless band5
Length 5' 3 13/16"
Width 1'5
Diameter  
Number of links  
Pitch 4"5
Tire tread  
Track centers/tread 63 13/16"5
Tire size 8.25 x 205
Wheel centers 64.25"5
Wheel base 135.5"5
  M2A1
Crew  
Physical Characteristics  
Weight 19,600 lb
Length  
Height 8' 10"
Width  
Width over tracks  
Ground clearance  
Ground contact length  
Ground pressure  
Turret ring diameter  
Armament  
Main  
Secondary  
MG  
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)  
Bore / stroke  
Cooling  
Cylinders  
Capacity  
Net HP  
Power to weight ratio  
Compression ratio  
Transmission (Type)  
Steering  
Steering ratio  
Starter  
Electrical system  
Ignition  
Fuel (Type)  
Octane  
Quantity  
Road consumption  
Cross country consumption  
Performance  
Traverse  
Speed - Road  
Speed - Cross Country  
Range - Road  
Range - Cross Country  
Turning radius  
Elevation limits -15° to +85°
Fording depth  
Trench crossing  
Vertical obstacle  
Climbing ability  
Suspension (Type)  
Wheels each side  
Return rollers each side  
Tracks (Type)  
Length  
Width  
Diameter  
Number of links  
Pitch  
Tire tread  
Track centers/tread  
Tire size  
Wheel centers  
Wheel base  

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. British and American Tanks of World War Two, The Complete Illustrated History of British, American, and Commonwealth Tanks 1933-1945, Peter Chamberlain and Chris Ellis, 1969
  3. The Encyclopedia of Weapons of World War II, Chris Bishop, 1998
  4. -
  5. Tank Data 2, Aberdeen Proving Grounds Series, E. J. Hoffschmidt and W. H. Tantum IV, 1969
  6. M3 Infantry Half-Track 1940-73, Steven J. Zaloga, 1994
20th Century American Military History Crucial Site