T1 Cunningham

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T1 Cunningham
Type Light tank
Place of origin  United States
Service history
In service prototype only
Used by United States of America
Production history
Designer James Cunningham
Designed 1922
Manufacturer James Cunningham, Son and Company (Rochester, NY)
Produced Prototypes only 1922-1934
Variants T1E2 and T1E4
Weight 8.8 tons (7.98 metric tons) (T1E2)
8.6 tons (7.8 metric tons) (T1E4)
Length T1E2: 12 ft 9.6 in (3.901 m)
T1E4: 15 ft 5 in (4.70 m)
Width 6 ft 2.4 in (T1E2)
7 ft 2.75 in (T1E4)
Height 7 ft 7.2 in (T1E2)
6 ft 6.75 in (T1E4)
Crew 2 (T1E2) 1.Commander, Driver 2.Gunner, Radio Operator, Loader

Armor T1E2: 0.6 in (15.24 mm) maximum
T1E4: 0.625 in (15.875 mm) maximum
T1E2: 37 mm M5, L/50 gun, (104 rounds)
T1E4: 37 mm semi-automatic M1924, (80 rounds)
.30 cal M1919 machine gun coaxial, (3000 rounds)
Engine Cunningham V8 gasoline, water cooled
T1E2: 132 hp (98 kW)
T11E1: 140 hp (100 kW)
Suspension T1E2: Leaf springs with 4 two wheeled bogies
T1E1: Vickers-Armstrong type Semi-elliptic springing
T1E2 - Unknown
T1E4 - 85 miles
Speed T1E2: 18.2 mph (29.29 kph)
T1E4: 20 mph (32 kph)

The T1 Cunningham was a U.S. light tank design that never left the prototype stages. Officially carrying the designations of T1E2 and T1E4, it continued through the development stages from 1922 through 1928. This tank was never mass produced, nor was it ever used in combat.


The T1E2 had a turret at the top rear of the tank which was traversed by hand. It had an overall weight of 8.8 tons and was powered with a gasoline V-type 8-cylinder water-cooled engine producing 132 horsepower. The transmission was a Cotta brand with 3 forward and 1 reverse gears. Armament included the 37 mm M5, L/50 main gun with a .30 cal M1919A4, coaxial machine gun.

The T1E4 had a centrally mounted turret with a full 360º manual traverse. It had an overall weight of 8.6 tons and was powered with a gasoline V-8 water cooled engine producing 140 horsepower. The transmission was a modified Cotta sliding gear with 3 forward and 1 reverse gears. Armament included the 37 mm semi-automatic M1924 and the coaxial machine gun was a .30 cal M1919A2 MG.[1]

It is unknown how many were actually produced in the prototype stages, but there is at least one preserved, currently in Fort Lee, Virginia.[2]

T1E2 T1E4
Hull front 0.6 in (15.24 mm) 0.625 in (15.875 mm)
hull sides 0.4 in (10.16 mm) 0.25 in (6.35 mm)
Turret front 0.6 in (15.24 mm) 0.5 in (12.7 mm)
turret sides 0.25 in (6.35 mm) 0.25 in (6.35 mm)


Further reading[edit]