Japanese aircraft carrier Hōshō
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- This page refers to the Japanese aircraft carrier. For the African instrument, see Hosho (instrument)
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| Career |  |
|---|---|
| Builder: | Asano Dock, Yokosuka |
| Laid down: | 16 December 1919 |
| Launched: | 13 November 1921 |
| Commissioned: | 27 December 1922 |
| Decommissioned: | June 1946 |
| Fate: | Dismantled in 1947 |
| General characteristics | |
| Displacement: | 7,470 t standard; 9,330 t trial; 10,500 t full load |
| Length: | 168 m LOA |
| Beam: | 18.0 m |
| Draft: | 6.17 m |
| Propulsion: | 2-shaft geared turbine, 12 boilers, 30,000 hp (22 MW) |
| Speed: | 25 knots (46 km/h) |
| Capacity: | Fuel oil 2,695 t, coal 940 t |
| Complement: | 550 |
| Armament: | 4 × 140 mm / 50 caliber guns(1 × 4) 2 × 80 mm / 40 caliber AA guns(1 × 2) 2 machine guns |
| Aircraft carried: | 26 |
Hōshō (Japanese: 鳳翔, meaning "flying phoenix") became the first flat-deck aircraft carrier of the Imperial Japanese Navy in 1921, and was the first purpose-designed aircraft carrier in the world to be commissioned.[1]
Her predecessors in the Imperial Japanese Navy were seaplane carriers such as the Wakamiya (converted in 1920 to an aircraft carrier with forward launch platform), or the Notoro.
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[edit] Development
The hull of the Hōshō was based on a cruiser design, but it was not a conversion. She was built from the keel up as an aircraft carrier. Hōshō was commissioned on 27 December 1922, thirteen months before the Royal Navy's first purpose-built carrier Hermes, which was designed before Hōshō. The Hōshō however was originally conceived as a mixed aircraft carrier and seaplane tender and only during construction was her design modified to a dedicated carrier. She was the first purpose-designed aircraft carrier, but not the first purpose-designed dedicated aircraft carrier. (See aircraft carrier for more on the type's history).
Her design was originally based on a cruiser-style hull, a flight deck with a depressed fore-part to accelerate lift-off, a starboard island, and three starboard funnels that were reclinable during flight operations. After trials she was improved by removing the island and flattening the flight deck, giving her a flush-deck design.
[edit] Operations
Being the first of its kind in the navy, Hōshō was actively used to develop the aircraft carrier operational methods and tactics of the Japanese Navy during the 1920s. She was preceded by the 1913 early aircraft carrier Wakamiya, which contributed to the development of the carrier techniques used in the Hōshō.
She served during the Shanghai Incident (bombing of Shanghai on January 28, 1932) and Sino-Japanese War in 1937. In August-December 1937, Hōshō supported land operations of the Japanese Army in China, as part of Carrier Division 1 with Ryūjō. Her aircraft complement consisted of nine Nakajima A2N fighters and six Yokosuka B3Y1 attack planes. [1]
By the beginning of World War II, Hōshō had been superseded by other models: she was too small and too slow to accommodate the newest types of carrier planes such as the Mitsubishi Zero. She saw action however during the battle of Midway in June 1942, offering modest air support to the main fleet. Her aircraft complement consisted of eight Yokosuka B4Y1 'Jean' torpedo bombers. [2]
For most of the postwar years, the assumption was made in English-language publications that the ship had been equipped with a 'modern' aircraft complement by the time of the Midway operation, on the basis of minimal translations published in English. However, beginning in the 1980s English-language researchers realized that this was a bad assumption, as Japanese official histories and air orders of battle began to appear. It has now become clear that at the time of Midway, Hōshō still carried a complement of the fixed landing gear biplane torpedo planes, the Yokosuka B4Y1 'Jean'. It was one of these aircraft which took the photos of the burning, drifting Hiryu in the late afternoon of June 4, 1942.
Efforts were made to lengthen and widen her flight deck, but the overhang weakened her stability and ocean-going capability. She was relegated to training duty in Japan's Inland Sea after 1943.
[edit] Post-War fate
After the war, she was used as a transport to repatriate Japanese personnel from abroad until June 1946. Hōshō was one of four carriers of the Japanese Navy to survive the war, but would be scrapped in 1947.
Hōshō air group:
- 1932: 9 fighters A1N1 (Type 3), 3 bombers B1M2 (Type 13), 3 reconnaissance aircraft C1M (Type 10) (15 aircraft)
- 1937: 9 fighters A4N1 (Type 95), 6 bombers B3Y1 (Type 92) (15)
- 1941: 11 fighters A5M4 'Claude', 8 bombers B4Y1 'Jean' (19)
- 1942: 8 bombers B4Y1 'Jean' (8)
[edit] Commanding Officers
Chief Equipping Officer - Capt. Ryutaro Kaizu - 13 November 1921 - 27 December 1922
Capt. Jiro Toshima - 27 December 1922 - 1 April 1923
Capt. Heizaburo Fukuyo - 1 April 1923 - 1 December 1923
Capt. Ryutaro Kaizu - 1 December 1923 - 15 April 1925
Capt. Seizaburo Kobayashi - 15 April 1925 - 1 November 1926
Capt. Giichiro Kawamura - 1 November 1926 - 1 November 1927
Capt. Kiyoshi Kitagawa - 1 November 1927 - 10 December 1928
Capt. Goro Hara - 10 December 1928 - 30 November 1929
Capt. Hideho Wada - 30 November 1929 - 1 December 1930
Capt. Eijiro Kondo - 1 December 1930 - 14 November 1931
Capt. Rokuro Horie - 14 November 1931 - 1 December 1932
Capt. Teizo Mitsunami - 1 December 1932 - 20 October 1933
Capt. Rokukichi Takeda - 20 October 1933 - 15 November 1934
Capt. Seigo Yamagata - 15 November 1934 - 12 June 1935
Capt. Kokichi Terada - 12 June 1935 - 15 November 1935
Capt. Munetaka Sakamaki - 15 November 1935 - 16 November 1936
Capt. Rynosuke Kusaka - 16 November 1936 - 16 October 1937
Capt. Takatsugu Jojima - 16 October 1937 - 15 November 1939
Capt. Kaku Harada - 15 November 1939 - 20 August 1940
Capt. Ushie Sugimoto - 20 August 1940 - 11 November 1940
Capt. Tomozo Kikuchi - 11 November 1940 - 5 September 1941
Capt. Kaoru Umetani - 5 September 1941 - 1 August 1942
Capt. Bunjiro Yamaguchi - 1 August 1942 - 15 November 1942
Capt. Katsuji Hattori - 15 November 1942 - 5 July 1943
Capt. Takeo Kaizuka - 5 July 1943 - 18 December 1943
Capt. Yoshi Matsuura - 18 December 1943 - 1 March 1944
Capt. Kiyoshi Koda - 1 March 1944 - 6 July 1944
Capt. Yujiro Takarada - 6 July 1944 - 5 March 1945
Capt. Shuichi Osuga - 5 March 1945 - 18 May 1945
Capt. Keiji Furutani - 18 May 1945 - 20 September 1945
Capt. Kunizo Kanaoka - 20 September 1945 - 31 August 1946
