Combat vehicles / Armored personnel carriers / M75

M75

General Facts

  • TYPE
    Armored personnel carrier

  • ORIGIN
    United States

  • NICKNAMES
    G260 (US military supply catalog number)
    T18, T-18E1, T18E2 (prototype models)

  • DESIGNED
    1946 - 1950

  • DESIGNER
    International Harvester Corporation

  • PRODUCTION
    1951 - 1954

  • PRODUCERS
    United States - FMC
    United States - International Harvester Corporation

  • QUANTITY
    1.729 or 1.780

  • UNIT COST
    $ 72.000 in 1952

  • CHARACTERISTICS
    Good level of protection
    Very expensive to produce
    Very heavy
    Limited mobility

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 level of protection is thicker 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.

Variants

M75

The M75 was produced only in a single variant, the armored personnel carrier. During production numerous small changes were made to reduce the production cost. These changes include the change from two rubber fuel tanks to a single metal one and the removal of some shock absorbers.

  • Specifications:
  • M75
TypeArmored personnel carrier
Crew2 + 10 (driver, gunner, 10 infantry)
Length5.19 m
Width2.85 m
Height2.76 m (overall)
Ground clearance0.46 m
Weight18.8 t combat load
Ground pressure0.60 kg/cm2
WheelbaseTracked chassis, 5 roadwheels, drive sprocket front, idler rear, 2.94 m length, 0.53 m width
Turn radiuspivot
EngineContinental AO-895-4 V6 gasoline, 295 hp at 2.800 rpm
Power ratio15.7 hp/t
TransmissionManual, 2 forward, 1 reverse
Speed71 km/h
Fuel570 L
Range185 km on road
Wall0.6 m
Trench1.7 m
Gradient60% gradient
Fording1.2 m
ArmorSteel, 13 to 25 mm
NBC equipmentNo
Night visionNo
SmokeNo
Remarks-
Armament12.7mm M2HB heavy machine gun
Weapon112.7mm M2HB on pintle mount on roof
1.800 rounds, 100 ready to fire
manual traverse and elevation
non-stabilized
Weapon2-
Weapon3-
Weapon4-
Weapon5-
Weapon6-

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