I Love Kit 1/35 British HMS X-Craft Submarine 63504X Craft was a Midget Submarine developed by the British Royal Navy for Special Warfare. The submarine with a 4 men crew, was 15. 62 m long with a maximum diameter of 1. 75 m and a displacement of 30 tons. It was powered by a 42 hp diesel engine for surface sailing and a 30 hp electrical power engine for submerged propulsion. The boat had 4 watertight compartments and had removable high explosive packs mounted on both sides of the hull. On September