An ammunition ship is an

auxiliary ship An auxiliary ship is a naval ship designed to support combatant ships and other naval operations. Auxiliary ships are not primary combatant vessels, though they may have some limited combat capacity, usually for purposes of self-defense. Auxil ...

specially configured to carry

ammunition Ammunition (informally ammo) is the material fired, scattered, dropped, or detonated from any weapon or weapon system. Ammunition is both expendable weapons (e.g., bombs, missiles, grenades, land mines) and the component parts of other we ...

, usually for naval ships and aircraft. An ammunition ship's cargo handling systems, designed with extreme safety in mind, include ammunition hoists with airlocks between decks, and mechanisms for flooding entire compartments with sea water in case of emergencies. Ammunition ships most often deliver their cargo to other ships using

underway replenishment Replenishment at sea (RAS) ( North Atlantic Treaty Organization/Commonwealth of Nations) or underway replenishment (UNREP) ( U.S. Navy) is a method of transferring fuel, munitions, and stores from one ship to another while under way. First devel ...

, using both connected replenishment and

vertical replenishment Vertical replenishment, or VERTREP, is a method of supply of seaborne vessels by helicopter. The United States Department of Defense defines VERTREP as: ...the transfer of cargo between ships using helicopters. VERTREP is often used to suppleme ...

. To a lesser extent, they transport ammunition from one shore-based weapons station to another.

In the United States Navy

U.S. Navy ammunition ships are frequently named for volcanos. During

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...

, U.S. Navy ammunition ships were converted from

merchant ship A merchant ship, merchant vessel, trading vessel, or merchantman is a watercraft that transports cargo or carries passengers for hire. This is in contrast to pleasure craft, which are used for personal recreation, and naval ships, which are ...

s or specially built on merchant ship hulls, often of Type C2. They were armed, and were manned by naval crews. Several of them were destroyed in spectacular explosions during the war, such as , which exploded in the Admiralty Islands on November 10, 1944, and the Liberty ship , which was hit by a single

kamikaze , officially , were a part of the Japanese Special Attack Units of military aviators who flew suicide attacks for the Empire of Japan against Allied naval vessels in the closing stages of the Pacific campaign of World War II, intending ...

attack near the

Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...

on December 28, 1944, and which was captured on film by an amateur photographer on a nearby vessel. The ship disintegrated in seconds with the loss of all hands. , and were hit by kamikaze aircraft at

Okinawa is a Prefectures of Japan, prefecture of Japan. Okinawa Prefecture is the southernmost and westernmost prefecture of Japan, has a population of 1,457,162 (as of 2 February 2020) and a geographic area of 2,281 Square kilometre, km2 (880 sq mi). ...

and sank. Contemporary U.S. ammunition ships of the are specially designed for their mission, which also includes carrying dry and refrigerated cargo. They are unarmed and are manned by civilian crews. These ships are being replaced by the s.

References

{{DEFAULTSORT:Ammunition Ship Ship types Auxiliary ships