The T1 Howitzer Motor Carriage was created in the fall of 1930 on the T2 chassis. The design incorporated components of the T1 Cunningham. Due to the Great Depression, all work on the project was discontinued at the prototype stage.
Time for the successive autoreloading of each shell into the magazine.
Characteristics are specified for Siege mode.
Characteristics are specified for Rapid mode.
Reload time of the first and second guns on double-barreled vehicles.
Characteristics are specified for vehicles with crews trained to 100%.