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United States' 1/4 Ton, 4x4, Truck, "Jeep"

Photos

1/4 ton, 4x4, Truck, "Jeep", 1941:
United States' 1/4 ton Truck, "Jeep", 1941
US Army Signal Corps

Design

The Jeep was initially developed for the Quartermaster Corps as a vehicle that could "go anywhere." In August 1942 these were then turned over to the responsibility of the Ordnance Department.

The windshield on the Jeep could be folded forward over the hood. There was a canvas top that was available.

Towing

The Jeep could tow a 37 mm gun or a two wheeled cargo carrier.

Production

  • 1/4 Ton, 4x4, Truck: ~650,000
    • Manufacturer: Ford Motor Co., Willys-Overland Motors, Inc.

Usage

The Jeeps were used for many roles, some of which being:

  • Ambulance
  • Liaison
  • Railroad, modified to travel on rails
  • Reconnaissance
  • Rocket Launcher
  • Telephone line layer

British SAS

The Jeep was modified to be used for long range desert patrols by the British SAS (Special Air Service).

Specifications

  1/4 Ton, 4x4, Truck, "Jeep"
Crew 2
Radio  
Physical Characteristics  
Weight 2,743 lb, 3,253 lb
1,247 kg
Payload 800 lb
Towing load 1,000 lb
Length 11' 0.25"
3.33 m
Height 3' 9", 5' 9.75"
1.14 m
Width 5' 2"
1.57 m
Ground clearance 8.75"
Ground pressure 20.8 psi
Wheelbase 80"
Armament  
Main 1: 0.30 cal machine gun
OR 1: 0.50 cal machine gun
Quantity  
Main  
Armor Thickness (mm)  
Engine (Make / Model) 1: Willys 441
OR 1: Willy 442 "Go Devil"
Bore / stroke 3 1/8" x 4 3/8"
Cooling  
Cylinders 4
Capacity 134.2 cu. ins.
Net HP 54@4,000 rpm, 60
Power to weight ratio  
Compression ratio 6.48:1
Radiator (Type) Fin and tube
Capacity 11 quarts
Transmission (Type) Syncromesh
6 forward, 2 reverse
Steering  
Steering ratio 14, 12, 14:1
Starter  
Electrical system 6-12 volt
Ignition Battery
Gear ratios - 1st speed 2.67:1
- 2nd speed 1.56:1
- 3rd speed 1.00:1
- Reverse 3.55:1
Fuel (Type) Gasoline
Octane 68
Quantity 15 gallons
Road consumption  
Cross country consumption  
Performance  
Speed - Road 55 mph, 65 mph
88.5 kph
Max speed towing 20 mph
Speed - Cross Country  
Range - Road 225 miles, 300 miles
363 km
Road radius towing 260 miles
Range - Cross Country  
Turning radius 17' 6"
Elevation limits  
Fording depth 1' 6", 1' 7"
0.5 m
Trench crossing  
Vertical obstacle  
Climbing ability 60%
Climbing ability towing 45%
Suspension (Type) Semi-elliptic
Wheels each side  
Wheels (Type) 6.00x16, 6 ply mud and snow
Width  
Diameter  
Tire tread  
Track centers/tread  

Sources:

  1. The American Arsenal, 1996
  2. Armored Fighting Vehicles, 300 of the World's Greatest Military Vehicles, Philip Trewhitt, 1999
20th Century American Military History Crucial Site