|Engine Power (hp)||200|
|Speed Limit (km/h)||43|
|Standard Shell Penetration (mm)||41 - 55|
|Standard Shell Damage||38 - 63|
|Rate of Fire (rounds/min)||12.6|
Experimental vehicles T1E4 through T1E6 were heavily influenced by the British Vickers E. The first prototype was manufactured by the Cunningham corporation in 1931. After trials in 1932, an upgraded variant was built. However, a different experimental tank, the T2, was preferred.