Landing craft carrier

Last updated

Landing craft carriers or landing craft depot ships were an innovative type of amphibious warfare ship developed by the Imperial Japanese Army during World War II. The prototype was developed in secrecy under the pseudonyms Ryujo Maru and Fuso Maru [1] using features later adopted by other navies for dock landing ships and amphibious transport docks. Additional ships were built after combat experience validated the concept, but most were completed after the Japanese invasions of the early war, and used primarily as troopships during later operations. Today's amphibious assault ships bear a strong similarity to this concept.

Contents

Prototype Shinshu Maru ShinshuMaru-1938.jpg
Prototype Shinshū Maru
Hei-type Akitsu Maru AkitsuMaru.jpg
Hei-type Akitsu Maru

Prototype

Shinshū Maru was completed in 1935 and modified in 1936 to include a floodable well dock. She was the world's first ship specifically designed to carry and launch landing craft. [1] She introduced stern and side gates to launch landing craft for the 2,200 soldiers she carried. She demonstrated the advantages of the concept at the invasions of Shanghai, Malaya and Java. [2]

Hei-type

Hei-type landing craft carriers included a flight deck with a capacity for 28 aircraft, but no hangar deck, since the deck beneath the flight deck was used to carry 25 landing craft launched through stern doors. [3] Akisu Maru was completed in time to participate in the invasion of Java; but she and the other Hei-types were thereafter used primarily as ferries to transport short-range aircraft to distant bases. The first two were completed from 11,800-ton, 20 knots (37 km/h; 23 mph) Nippon Kaiun, K. K. passenger ships under construction by Harima Shipbuilding. They operated two Kayaba Ka-1 autogyros. [2] Both were sunk by submarines in 1944. [1]

The others were based on Hitachi Shipbuilding Corporation's standard 8,000-ton, 19 knots (35 km/h; 22 mph) Type-M cargo steam ship modified (Type-MB) [1] to carry twelve Toku Daihatsu-classlanding craft launched through stern doors [2] with funnels installed horizontally on the starboard side to accommodate a flight deck. [1]

Ko-type

The larger type were 11,910-ton, 20.8 knots (38.5 km/h; 23.9 mph) diesel-engined ships fitted with stern ramp gates for launching twenty Daihatsu-classlanding craft stored in floodable holds. At the time, this launching method was unprecedented. Both were sunk by submarines with very heavy loss of life. [2]

Later production was Hitachi's standard Type-M steam ship modified (Type-MA) to carry twelve Toku-Daihatsu-class landing craft. [2] The landing craft were launched from rails which ran along the main deck (between port and starboard funnels for those carried forward of the superstructure) down to the waterline through large hinged doors at the stern. Settsu Maru survived for use as a repatriation ship, but her sister ships were sunk in air raids on Japanese ports. [1]

Otsu-type

Takatsu Maru was a 5,656-ton, 19-knot steam ship [2] completed in January 1944 with icebreaker capability, [3] and used conventional cranes rather than gates for handling nine Toku-Daihatsu-class landing craft. [2] She was sunk by United States aircraft in Ormoc Bay during the invasion of the Philippines. [1]

Related Research Articles

<span class="mw-page-title-main">Warship</span> Ship that is built and primarily intended for naval warfare

A warship or combatant ship is a naval ship that is built and primarily intended for naval warfare. Usually they belong to the armed forces of a state. As well as being armed, warships are designed to withstand damage and are usually faster and more maneuverable than merchant ships. Unlike a merchant ship, which carries cargo, a warship typically carries only weapons, ammunition and supplies for its crew. Warships usually belong to a navy, though they have also been operated by individuals, cooperatives and corporations.

<span class="mw-page-title-main">Landing craft</span> Seagoing watercraft

Landing craft are small and medium seagoing watercraft, such as boats and barges, used to convey a landing force from the sea to the shore during an amphibious assault. The term excludes landing ships, which are larger. Production of landing craft peaked during World War II, with a significant number of different designs produced in large quantities by the United Kingdom and United States.

<span class="mw-page-title-main">Dock landing ship</span> Type of amphibious warfare ship

A dock landing ship is an amphibious warfare ship with a well dock to transport and launch landing craft and amphibious vehicles. Some ships with well decks, such as the Soviet Ivan Rogov class, also have bow doors to enable them to deliver vehicles directly onto a beach. Modern dock landing ships also operate helicopters.

Landing craft tank Amphibious assault craft for landing tanks on beachheads

The Landing Craft, Tank (LCT) was an amphibious assault craft for landing tanks on beachheads. They were initially developed by the Royal Navy and later by the United States Navy during World War II in a series of versions. Initially known as the "tank landing craft" (TLC) by the British, they later adopted the U.S. nomenclature "landing craft, tank" (LCT). The United States continued to build LCTs post-war, and used them under different designations in the Korean and Vietnam Wars.

Landing Ship, Tank Amphibious assault ship of World War II

Landing Ship, Tank (LST), or tank landing ship, is the naval designation for ships first developed during World War II (1939–1945) to support amphibious operations by carrying tanks, vehicles, cargo, and landing troops directly onto shore with no docks or piers. This enabled amphibious assaults on almost any beach.

Landing Craft Utility Type of boat designed for transporting amphibious forces and cargo to shore

A Landing Craft Utility (LCU) is a type of boat used by amphibious forces to transport equipment and troops to the shore. They are capable of transporting tracked or wheeled vehicles and troops from amphibious assault ships to beachheads or piers.

<span class="mw-page-title-main">Imperial Japanese Army Railways and Shipping Section</span>

The Imperial Japanese Army Railway and Shipping Section was the logistics unit of the Imperial Japanese Army charged with shipping personnel, material and equipment from metropolitan Japan to the combat front overseas.

Japanese aircraft carrier <i>Taiyō</i> Taiyō-class escort carrier

The Japanese aircraft carrier Taiyō was the lead ship of her class of three escort carriers. She was originally built as Kasuga Maru (春日丸), the last of three Nitta Maru class of passenger-cargo liners built in Japan during the late 1930s for NYK Line. The ship was requisitioned by the Imperial Japanese Navy (IJN) in early 1941 and was converted into an escort carrier. Taiyō was initially used to transport aircraft to distant air bases and for training, but was later used to escort convoys of merchant ships between Japan and Singapore. The ship was torpedoed twice by American submarines with negligible to moderate damage before she was sunk in mid-1944 with heavy loss of life.

<i>Momi</i>-class destroyer

The Momi-class destroyers were a class of twenty-one second-class destroyers of the Imperial Japanese Navy. All were named for plants. Obsolete by the beginning of the Pacific War, the Momis were relegated to mostly secondary roles, with some vessels serving throughout the war as patrol vessels or high speed transports.

USS <i>Manitowoc</i> (LST-1180) Newport-class tank landing ship

USS Manitowoc (LST-1180) was the second ship of the Newport-class tank landing ships which replaced the traditional bow door-design tank landing ships (LSTs) in service with the United States Navy. Manitowoc was constructed by the Philadelphia Naval Shipyard in Philadelphia, Pennsylvania and launched in 1969 and entered service in 1970.

USS <i>Fresno</i> (LST-1182) Newport-class tank landing ship

USS Fresno (LST-1182) was the fourth tank landing ship (LST) of the Newport class. Fresno was named for a county in California. The vessel was constructed by the National Steel and Shipbuilding Company in San Diego, California and launched in 1968. The ship entered service in 1969 and was assigned to the United States Pacific Fleet, taking part in training along the west coast and operational cruises to the western Pacific, taking part in the Vietnam War. Fresno was decommissioned in 1993 and laid up. The LST was nearly sold to Peru but remained in the U.S. inventory until 2014, when Fresno was sunk as a target ship in the Pacific Ocean during a training exercise off Guam.

<span class="mw-page-title-main">Amphibious assault ship</span> Type of warship used in amphibious assaults

An amphibious assault ship is a type of amphibious warfare ship employed to land and support ground forces on enemy territory by an amphibious assault. The design evolved from aircraft carriers converted for use as helicopter carriers. Modern ships support amphibious landing craft, with most designs including a well deck. Coming full circle, some amphibious assault ships also support V/STOL fixed-wing aircraft, now having a secondary role as aircraft carriers.

<span class="mw-page-title-main">Amphibious warfare ship</span> Ship used in amphibious warfare

An amphibious warfare ship is an amphibious vehicle warship employed to land and support ground forces, such as marines, on enemy territory during an amphibious assault.

Japanese aircraft carrier <i>Akitsu Maru</i> Escort carrier of the Imperial Japanese Army

Akitsu Maru (あきつ丸) was a Japanese landing craft depot ship and escort aircraft carrier operated by the Imperial Japanese Army (IJA). In some sources Akitsu Maru and her sister ship Nigitsu Maru (にぎつ丸) are also considered to be the first amphibious assault ships.

<i>No.1</i>-class landing ship World War II naval ship of Japan

The No.1-class landing ship was a class of amphibious assault ships of the Imperial Japanese Navy (IJN), serving during and after World War II. The IJN also called them 1st class transporter.

Japanese amphibious assault ship <i>Shinshū Maru</i>

Shinshū Maru was a ship of the Japanese Imperial Army during World War II. She was the world's first landing craft carrier ship to be designed as such, and a pioneer of modern-day amphibious assault ships. During some of her operations, she was known to have used at least four cover names, R1, GL, MT, and Ryujo Maru.

<i>Ashland</i>-class dock landing ship

The Ashland-class dock landing ship were the first class of dock landing ship of the United States Navy. They were built during World War II. A dock landing ship is a form of auxiliary warship designed to support amphibious operations. Eight ships were built for the United States Navy and they remained in US service until the 1960s. Two of the class were sold for export overseas, with one joining the Republic of China Navy and the other the Argentinian Navy. The two transferred ships stayed in service until the 1980s. All eight ships were scrapped.

Soukoutei-class armored boat

The Soukoutei class or AB-tei class was a type of armored gunboat used by the Imperial Japanese Army from 1928 to 1945 in the Second Sino-Japanese War and World War II. It was constructed of a metal hull and powered by a diesel engine. It was designated the "Type C" landing craft by the United States.

Multi-Role Support Ship (MRSS) is a class of amphibious ship planned for the Royal Malaysian Navy (RMN).

Japanese landing ship <i>No. 1</i> No.1-class landing ship

No. 1 was a No.1-class landing ship of the Imperial Japanese Navy during the Pacific War. Completed in early 1944, the ship was used as a convoy escort on one successful mission to resupply Imperial Japanese Army units on Saipan. On the return trip, No. 1 was badly damaged by American aircraft and towed to Palau. Redesignated as an anti-aircraft ship, she was sunk by American bombers in July 1944.

References

  1. 1 2 3 4 5 6 7 8 9 Watts, Anthony J. (1967). Japanese Warships of World War II. New York: Doubleday & Company. pp. 307–311.
  2. 1 2 3 4 5 6 7 8 Hackett, Bob; Cundall, Peter (2012). "IJA Landing Craft Depot Ships". combinedfleet.com. Retrieved 26 September 2012.
  3. 1 2 3 4 5 6 7 8 9 10 11 "Landing Craft Carrier Model Ko, Otsu, Hei". Taki. Retrieved 26 November 2013.