The 17pdr SP M10 Achilles was designed to be a hard-hitting and manoeuvrable anti-tank gun. The British Army did not use the American term tank destroyer, preferring the term self-propelled gun (SP). British self-propelled anti-tank guns were given names starting with the letter ‘A’, like Archer, Alecto, Avenger and Achilles. Its thin upper armour meant the Achilles was not designed to be at the front of an attack. In defence it would guard the flanks of a a position and
