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105mm M102



Overview


M102

M102 in the firing position with wheels raised off the ground.
Source: US DOD (phographer unknown) - © public domain

Origin
United States
Type
Towed howitzer
Entered service
1966
Status
Limited service
Development
1960 - 1963
Developer
United States - Rock Island Arsenal
Production
1965 - Early 1970's
Producer
United States
Number produced
Over 1.200

Description


Introduction

The M102 is a towed 105mm howitzer of US origin. It was developed in the early 1960's as a lighter and more mobile alternative to the M101. It was widely employed by US forces during the later stages of the Vietnam war.

Design

The main focus of the M102 design was on light weight. As such the M102 uses an aluminum box chassis with two wheels. A circular base plate below the axle allows for quick traverse. There is no gun shield.

Firepower

The M102 fires the same ammunition as the earlier M101 and has a slightly improved range. The maximum range is 11.5 km with standard ammunition and 15.1 km with rocket assisted ammunition. The maximum rate of fire is 10 rounds per minute.

Mobility

The M102 is a third lighter than the M101. This makes it easier to transport using helicopters and lighter vehicles can be used to tow it.

Users

The main user of the M102 was the US army. In active service it has been replaced by the US version of the 105mm Light Gun. The M102 has been exported to various nations in South America and Asia.

Details


Facts M102
General
Origin
United States
Type
Towed howitzer
Crew
8
Dimensions
Weight
1.496 kg
Length
5.18 m (travelling)
Width
1.96 m
Height
1.59 m (travelling)
Ordnance
Type
105mm 32-caliber M137 howitzer
Barrel length
3.4 m
Muzzle brake
No
Muzzle velocity
494 m/s
Elevation
-5° to +75°
Traverse
360°
Firepower
Rate of fire
10 rpm maximum
3 rpm normal
Range
11.5 km standard shells
15.1 km assisted shells
Carriage
Type
2 wheel box carriage
Limber
No
Gun shield
No
Mobility
Towing vehicle
4x4 light truck, 6x6 truck
APU
No

Media