London Naval Treaty (1930)
“ The standard displacement of a submarine is the surface displacement of the vessel complete (exclusive of the water in non-watertight structure) fully manned, engined, and equipped ready for sea, including all armament and ammunition, equipment, outfit, provisions for crew, miscellaneous stores, and implements of every descrirption that are intended to be carried in war, but without fuel, lubricating oil, fresh water or ballast water of any kind on board. ”
