High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles!The Vosper 73 foot motor torpedo boat was a mid twentieth century British military boat design by Vosper. At 73 feet long they were considered small boats compared to longer designs such as the Fairmile Type D. The design came about from a requirement that British Motor Torpedo Boats should be better able to fight small craft which was the job of Motor Gun Boats. To this end Vospers built on their existing 70 foot designs. The type I was introduced in 1943 and the Type II before the end of the Second World War.The boats carried four 18-inch torpedo tubes as their major offensive armament along with 20mm Oerlikon cannon and some defensive armament (Vickers K machine guns)for protection against enemy aircraft.