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M108



Overview


M108 self-propelled howitzer

Former Spanish army M108 self-propelled howitzer seen on display in 2015.
Source: Outisnn - © Public domain

Origin
United States
Type
Self-propelled howitzer
Entered service
1962
Status
Obsolete
Development
1952 - Early 1960's
Developer
United States
Production
1962 - 1963
Producer
United States - Cadillac
Number produced
About 355 for US Army, possible several dozen more produced
Designations
105mm Self-propelled Howitzer M108
T195E1 (prototype designation)
Notable users
United States
Belgium
Brazil
Taiwan

Details


Facts M108
General
Origin
United States
Type
Self-propelled howitzer
Crew
5 (commander, driver, 2 gunners, loader)
Dimensions
Weight
21.0 t combat load
Length
6.11 m, no barrel overhang
Width
3.15 m
Height
3.28 m including M2HB
Main armament
Type
105mm M103 howitzer
Mount
M139 mount
Ammunition
87 shells, including 16 in ready rack
Elevation
-6° to +75°, manual
Traverse
360°, manual
Range
11.5 km with M1 HE shell
15 km with M548 rocked assisted shell
Rate of fire
3 to 4 rpm
Secondary armament
Type
12.7mm M2HB heavy machine gun
Mount
Pintle mount on turret roof
Ammunition
500 rounds, 100 ready to fire
Traverse
Manual traverse and elevation
Stabilizer
No
Chassis
Chassis type
Tracked chassis, 7 roadhweels
Layout
Drive sprocket front, idler rear
Tread
2.77 m
Track width
0.38 m
Length on ground
3.96 m
Ground pressure
0.69 kg/cm²
Suspension
Torsion bar
Automotive
Engine model
Detroit Diesel 8V71T
Engine type
Water-cooled supercharged V8 diesel
Power output
405 hp at 2.300 rpm
Torque
1.330 Nm at 1.700 rpm
Transmission
Allison XTG-411-2A
4 forward, 2 reverse
Fuel
511 L
Mobility
Speed
56 km/h on road
Range
350 km on road
Turn radius
Pivot
Power to weight ratio
14.5 hp/t
Obstacle crossing
Ground clearance
0.45 m
Wall
0.5 m
Trench
1.8 m
Gradient
60 %
Fording
Amphibious with preparation and flotation devices
Protection
Armor type
Aluminum hull and turret
Armor thickness
32 mm hull all around
32 mm turret all around
NBC system
No
Smoke system
No
Equipment
Fire control
M117 panoramic telescope
Radio
Yes

Media


Related articles


M109

The M108 was developed alongside the original short barrel M109. Both vehicles use the same chassis and turret. The M109 proved a superior and more versatile design, halting domestic and foreign acquisition of the M108.