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M75



Overview


M75

M75 armored personnel carrier.
Source: Donald Roberts @ Idaho Motor Pool - © copyright lies with original owner

Origin
United States
Type
Armored personnel carrier
Entered service
Early 1950's
Status
Out of service
Development
1946 - 1950
Developer
United States - International Harvester Corporation
Production
1951 - 1954
Producer
United States - FMC
United States - International Harvester Corporation
Unit cost
$ 72.000 in 1952
Number produced
1.729 or 1.780
Designations
G260 (US military supply catalog number)
T18, T-18E1, T18E2 (prototype models)
Notable users
United States
Belgium

Description


Introduction

The M75 is an early Cold War era armored personnel carrier of US origin. It was developed in the late 1940's by the International Harverster Corporation to replace the halftracks used in World War 2. The M75 was the first design in a series of US armored personnel carriers that resembles a metal box on tracks. Although the M75 functioned quite well and had a good level of protection its huge cost, high weight and limited mobility resulted in production to be halted early. As a result the M59 and later the successful M113 were developed, both vehicles share the general layout of the M75.

Layout

The M75 looks like a box on a tracked chassis, which was derived from the chassis used on the M41 light tank. The driver is seated at the front left with the engine to his right. The crew compartment is located at the rear and is accessed by two doors in the rear.

Firepower

The M75 is armed with a single 12.7mm M2HB heavy machine gun on a ring mount for which 1.800 rounds are carried.

Protection

The thick steel hull provides the crew from small arms fire and shell splinters. The armor thickness is greater than needed for stopping 7.62mm rounds, but is not fully adequate for stopping 12.7mm rounds. An NBC system and smoke grenade dischargers are both lacking.

Mobility

The tracked chassis allows the M75 to cross allmost any terrain. Due to the heavy weight the M75 is not amphibious and has a limited mobility. The average speed is low, although a top speed of 71 km/h can be achieved. The operational range is very limited due to a high fuel consumption. Propulsion is provided by a Continental 295 hp gasoline engine.

Users

The main user of the M75 was the US Army and the M75 was actively used in small numbers in the Korean war. After the war it was replaced by the lighter M59 and large numbers ended up in Belgium and a smaller batch in Ethiopia. Since the early 1980's the M75 is no longer in service.

Details


Facts M75
General
Origin
United States
Type
Armored personnel carrier
Crew
2 + 10 (driver, gunner, 10 infantry)
Dimensions
Weight
18.8 t combat load
Length
5.19 m
Width
2.85 m
Height
2.76 m (overall)
Main armament
Type
12.7mm M2HB heavy machine gun
Mount
Ring mount on roof
Ammunition
1.800 rounds, 100 ready to fire
Traverse
Manual traverse and elevation
Stabilizer
No
Chassis
Chassis type
Tracked chassis, 5 roadwheels
Layout
Drive sprocket front, idler rear
Suspension
Torsion bar
Track on ground
2.94 m
Track width
0.53 m
Ground pressure
0.60 kg/cm²
Automotive
Engine
Continental AO-895-4 V6 gasoline
Power output
295 hp at 2.800 rpm
Transmission
Manual, 2 forward, 1 reverse
Fuel
570 L
Mobility
Speed
71 km/h
Range
185 km on road
Turn radius
Pivot
Power to weight ratio
15.7 hp/t
Obstacle crossing
Ground clearance
0.46 m
Wall
0.6 m
Trench
1.7 m
Gradient
60 %
Fording
1.2 m
Protection
Armor type
Steel
Armor thickness
13 to 25 mm
NBC system
No
Smoke system
No
Equipment
Night vision
No

Media


Related articles


M59

The M75 was replaced in service by the cheaper, smaller and more mobile M59.

M113

The M113 is more modern than M75 and M59, but still looks rather similar.

Browning M2HB

The 12.7mm M2HB heavy machine gun is used on a pintle mount on the roof of the M75.