WW1HeavyHeavy TankPrototypeUnited States

Steam Tank (Tracked)

In service Never entered service - Trials 1918

A rhomboid, steam-powered flamethrower tank built by US Army engineers in 1918.

Built byUS Army Corps of Engineers

Photograph pending. No clearly licensed photograph of this vehicle was found.

Development history

The Corps of Engineers built the Steam Tank in 1918, copying the British rhomboid layout but driving it with two steam engines and arming it with a flamethrower in the nose. It was demonstrated in 1918 but the war ended before any development followed, and only the prototype was built. No photograph with a verified open licence has been found, so the archive shows a blueprint placeholder.

Notable actions

  • None - trials vehicle