Dock landing ship

[2] The LSD (U.S. Navy hull classification for landing ship, dock) came as a result of a British requirement during the Second World War for a vessel that could carry large landing craft across the seas at speed.

The predecessor of all modern LSDs is Shinshū Maru of the Imperial Japanese Army, which could launch her infantry landing craft using an internal rail system and a stern ramp.

She entered service in 1935 and saw combat in China and during the initial phase of Japanese offenses during 1942.

Thirteen landing craft mechanized (LCM) could be launched from these ships down the chute.

Smaller landing craft could be carried in the hold as could full-tracked and wheeled amphibious assault or support vehicles.