Landing Craft (Gun) Tower, abbreviated as LC(G)T, also known as the Normandy Bombardment Tower, was a unique catamaran built in 1943. It was designed to act as a semi-mobile gun tower which could be used to out-gun any German beach defences during the Allied invasion of Normandy in 1944. It is described in some sources as a "semi-submersible austerity inshore monitor".