The Alecto, initially known as the Harry Hopkins Mk 1 CS,[1] was a self propelled gun developed by the British during World War II.

Two guns were made, and one of these was chosen for test mounting on a Light Tank Mk VIII "Harry Hopkins" chassis.

Like the Harry Hopkins, the Alecto had skid steering, which operated by bowing the tracks through lateral movements of the central road wheels.

The trials uncovered various problems but by the time these were solved the war in Europe was over.

A small number of Alecto Is were completed, some served briefly with the British Army in Germany, arriving in the immediate post-war period [2] and they equipped the heavy companies of at least the Kings Dragoon Guards[3] operating in the Middle East just after the end of the war[4] Background: British armoured fighting vehicle production during World War II, Tanks in the British Army