M6 Heavy Tank

🇺🇸United States
U.S Army Ordnance
1942 – Present
Overview
M6 Heavy Tank
The M6 Heavy Tank is an American WWII heavy tank developed by US Army Ordnance, armed with 3-inch and 37mm guns, operated by a 6-man crew with a 35 km/h top speed and 160km range before cancellation in 1944.
Specifications

General

Crew6
Range Km160 km
Armor Typenull
Fire Controlnull
Max Speed Kmh35 km/h
Weight Tonnes57.4 tonnes
Engine Power Hp825 hp
Active Protectionnull
Secondary Armament2 × .50 cal (12.7mm) Browning M2HB machine guns, hull (6,900 rounds) 2 × .30 Browning M1919A4 machine guns, one fixed (bow), one flexible AA (5,500 rounds)
Main Gun Caliber Mm76.2 mm
Research Notes

Development Context

M6 Heavy Tank is best understood as a U.S. prototype heavy tank, rather than as a bare specification line. The M6 Heavy Tank was the U.S. Army’s early World War II attempt to create a domestic heavy tank before combat experience and shipping realities changed priorities. This richer context connects the equipment’s specifications to doctrine, industrial constraints, and operational use.

Design and Tradeoffs

The design choices behind M6 Heavy Tank show the tradeoffs that shaped its battlefield role. Its large hull, heavy armor, dual main-gun arrangement, and complex drivetrain made it powerful on paper but awkward compared with the more practical medium-tank path. This richer context connects the equipment’s specifications to doctrine, industrial constraints, and operational use.

Service and Legacy

The service record of M6 Heavy Tank explains why the equipment remains historically useful to compare. The M6 never fought, yet it taught U.S. designers and ordnance planners lessons that fed later heavy-tank development and the eventual Pershing lineage. This richer context connects the equipment’s specifications to doctrine, industrial constraints, and operational use.

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