M37 Gun Motor Carriage (GMC)

History of the M37 Gun Motor (GMC)

The M37 Gun Motor Carriage is an American military self-propelled gun introduced at the end of World War II. The type was developed from the existing chassis of the M24 Chaffee light tank as a faster and lighter replacement for the heavier and slower M7 Priest. The first copies were delivered in 1945, the last year of the war. Still, the M37 completely missed combat action in the war, although it managed to remain in service during the Korean War (1950-1953).

The total production of the 448 originally ordered eventually reached 316, all supplied by General Motors.

The original M25 Chaffee ("M24 Light Tank") appeared in 1944, with 4,731 produced as of August 1945. During the final months of World War II, it was widely used as a light tank to support infantry operations and reconnaissance of enemy positions and movements.

The M24 was designed to replace (and ultimately improve upon) the previous M3/M5 Stuart light tanks. As such, Chaffee was armed with a powerful 75mm M6 L/40 main gun, 0.50 caliber Browning M2HB heavy machine guns and 2 x .30-06 Browning M1919A4 general purpose machine guns. The fuselage is solid, with exposed landing gear on each side, consisting of five twin-tire wheels, a front drive sprocket and a rear track idler. Three track deflection wheels are defined along the upper part of the track. The standard operator is 5 people, and power is provided by 2 Cadillac Series 44T24 8-cylinder engines with 110 hp each.

When used against lightly armored or unprotected vehicles and fast reconnaissance, the small M24 has inherently good maneuverability and speed advantages. In turn, its light armor protection makes it vulnerable to enemy tanks and anti-tank personnel, requiring tank personnel to exercise caution in any engagement.

Modification of the M24, the M37 has the same landing gear and a new fixed open-air superstructure. The M37 itself was designed to replace the M7 "Priest", which itself was built on the mid-level M3 Lee/M4 Sherman tanks that were in heavy service during the war (before the arrival of the war-winning M4 Sherman). While the M7 was equipped with a powerful "105mm M1/M2" howitzer system (based on the successful M101 field howitzer), the M37 received a similar "105mm M4" model (also based on the M101, the same as the howitzer). Armed Sherman). As seen in the M7 Priest series, the hull structure is fitted with a right-mounted machine gun "pulpit".

The 105mm gun is mounted on a bracket near the centerline of the vehicle (slightly offset to the right). The rest of the design consisted of an open-top armored hull that surrounded the gunner's fighting compartment (only the driver was protected from the elements).

Like other vehicles of this type, armor protection is considered thin and only useful for small arms fire and artillery jets. The main gun traverses a 52-degree arc at its base, requiring the entire vehicle to be turned to fire beyond this limit. Can carry up to 126x105mm projectiles.

A .50 Browning M2HB heavy machine gun mounted on the canopy for anti-air/anti-tank defense. The vehicle was driven by seven people including the driver, commander, gunman and ammunition dealer. Power is provided by 2 Cadillac Series 44 V8 gasoline engines, each producing 220 horsepower. The top speed on the road is 48 km/h and the range is 161 km.

The vehicle weighs 23,000 kg.

While the original M24 design proved to be a fast, flexible armour system, the M37 took a heavier weight load on top of it, including the 105mm howitzer, required mounting and recoil systems, available magazines And the required armor includes the fighting compartment. This modification eliminated many of the favorable tactical features inherent in the M24 design and resulted in a slower, bulkier track system.

In any case, the M37 was never intended to be used for direct fire at the front, but for indirect fire support to advancing forces in the rear.

With the end of the Korean War, the M37 GMC joined other WWII-era systems that were mothballed and eventually retired (including the M4 Sherman). The Spanish Army is the recognized foreign recipient of the M37 artillery mobile transport system.

Specification

Basic

Roles

Dimensions

Performance

Performance

for everyone else in our database)

Armor

126x105mm bullet

550 x .50 caliber ammo

Changes