Japanese aircraft carrier Shōhō

Coordinates: 16°07′14.17″S 151°54′47.02″E / 16.1206028°S 151.9130611°E / -16.1206028; 151.9130611
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Shōhō, 20 December 1941
History
Japan
NameShōhō
NamesakeJapanese: 祥鳳, "Auspicious Phoenix', or "Happy Phoenix"
BuilderYokosuka Naval Arsenal
Laid down3 December 1934
Launched1 June 1935
Commissioned30 November 1941
FateSunk by air attack during the Battle of the Coral Sea, 7 May 1942
General characteristics (as converted)
Class and typeZuihō-class aircraft carrier
Displacement11,443 
standard
)
Length205.5 m (674 ft 2 in)
Beam18.2 m (59 ft 8 in)
Draft6.6 m (21 ft 7 in)
Installed power
  • 4 ×
    boilers
  • 52,000 
    kW
    )
Propulsion2 × shafts; 2 × geared steam turbines
Speed28 knots (52 km/h; 32 mph)
Range7,800 nmi (14,400 km; 9,000 mi) at 18 knots (33 km/h; 21 mph)
Complement785
Armament
Aircraft carried30
Aviation facilities2 × Aircraft elevators

Shōhō (

Operation MO, the invasion of Port Moresby, New Guinea, and was sunk by American carrier aircraft on her first combat operation during the Battle of the Coral Sea on 7 May. Shōhō was the first Japanese aircraft carrier to be sunk during World War II
.

Design, construction and conversion

Tsurugisaki in 1939.

Shōhō and her

laid down by the Yokosuka Naval Arsenal on 3 December 1934 as the submarine tender Tsurugizaki.[1] She was launched on 1 June 1935 and completed on 15 January 1939. Not long after the ship was initially completed, she began reconstruction as an aircraft carrier in 1941. Her superstructure was removed and replaced by a flight deck with a hangar for her aircraft below. Renamed Shōhō, the conversion was finished on 26 January 1942.[2]

Schematic of Shōhō

After her conversion, Shōhō had a length of 205.5 meters (674 ft 2 in)

Kampon water-tube boilers and Shōhō now had a maximum speed of 28 knots (52 km/h; 32 mph). The boilers exhausted through a single downturned starboard funnel and she carried 2,642 tonnes (2,600 long tons) of fuel oil, giving her a range of 7,800 nautical miles (14,400 km; 9,000 mi) at a speed of 18 knots (33 km/h; 21 mph).[3] Her crew numbered 785 officers and men.[4]

Shōhō's flight deck was 180 meters (590 ft 6 in) long and had a maximum width of 23 meters (75 ft 6 in). The ship was designed with a single hangar 124 meters (406 ft 10 in) long and 18 meters (59 ft) wide.

island superstructure. She was designed to operate 30 aircraft.[4]

The ship's primary armament consisted of eight 40-

25 mm Type 96 light AA guns, also in sponsons along the sides of the hull.[2]

Service history

Shōhō undergoing conversion into a light carrier, 2 September 1941

Shōhō was commissioned on 30 November 1941 and

Yokosuka.[6][7]

In late April 1942, Shōhō was assigned to Operation MO and arrived in Truk on 29 April. The following day, she departed Truk with the cruisers

Mitsubishi A6M2 "Zero" fighters plus six Nakajima B5N2 "Kate" torpedo bombers. Covering the other elements of Operation MO was the Striking Force that consisted of the fleet carriers Shōkaku and Zuikaku.[7]

Battle of the Coral Sea

Dramatic shot of the detonation of a 1,000-pound (450 kg) bomb on Shōhō during the Battle of the Coral Sea

After covering the landings on Tulagi on 3 May, Shōhō headed north to cover the invasion convoy the next day and was not present when aircraft from the American carrier Yorktown attacked Japanese shipping at Tulagi. This air strike confirmed that at least one American carrier was in the vicinity, but the Japanese had no idea of its location.[9] They launched a number of reconnaissance aircraft the following day to search for the Americans, but without result. One Kawanishi H6K "Mavis" flying boat spotted Yorktown, but was shot down by one of Yorktown's Grumman F4F Wildcat fighters before she could radio a report. US Army Air Forces (USAAF) aircraft spotted Shōhō[Note 1] southwest of Bougainville Island on 5 May, but she was too far north to be attacked by the American carriers, which were refueling.[11] That day, Rear Admiral Frank Jack Fletcher received Magic intelligence that placed the three Japanese carriers known to be involved in Operation MO near Bougainville, and predicted 10 May as the date of the invasion. It also predicted airstrikes by the Japanese carriers in support of the invasion several days before 10 May. Based on this information, Fletcher planned to complete refuelling his ships on 6 May and move closer to the eastern tip of New Guinea to be in a position to locate and attack Japanese forces on 7 May.[12]

Another H6K spotted the Americans during the morning of 6 May and successfully shadowed them until 14:00. The Japanese, however, were unwilling or unable to launch air strikes in poor weather or without updated spot reports.

scuttled a few days later. The American carriers were west of the Strike Force, not south, and they were spotted by other Japanese aircraft shortly after the carriers had launched their attack on Neosho and Sims.[15]

American reconnaissance aircraft reported two Japanese heavy cruisers northeast of Misima Island in the Louisiade Archipelago off the eastern tip of New Guinea at 07:35 and two carriers at 08:15. An hour later, Fletcher ordered an airstrike launched, believing that the two carriers reported were Shōkaku and Zuikaku. Lexington and Yorktown launched a total of 53 Douglas SBD Dauntless dive bombers and 22 Douglas TBD Devastator torpedo planes escorted by 18 F4F Wildcats. The 0815 report turned out to be miscoded, as the pilot had intended to report two heavy cruisers, but USAAF aircraft had spotted Shōhō, her escorts and the invasion convoy in the meantime. As the latest spot report plotted only 30 nautical miles (56 km; 35 mi) away from the 0815 report, the aircraft en route were diverted to this new target.[16]

Shōhō hit by a torpedo launched by a Devastator from Lexington

Shōhō and the rest of the Main Force were spotted by aircraft from Lexington at 10:40. At this time, Shōhō's

Lieutenant Commander Robert E. Dixon, commander of Lexington's dive bombers, radioed his famous message to the American carriers: "Scratch one flat top!"[17]

With Shōhō hit by no fewer than 13 bombs and 7 torpedoes, Captain Izawa ordered the ship abandoned at 11:31. She sank four minutes later. Some 300 men successfully abandoned the ship, but they had to wait to be rescued as Gotō ordered his remaining ships to head north at high speed to avoid any further airstrikes. Around 14:00, he ordered the destroyer Sazanami to return to the scene and rescue the survivors.[18] She found only 203, including Captain Izawa. The rest of her crew of 834 died during the attack or in the water awaiting rescue.[19] Shōhō was the first Japanese aircraft carrier lost during the war.[20]

Notes

  1. ^ Her name was mistransliterated by the Americans as Ryukaku.[10]

Footnotes

  1. ^ Peattie, pp. 241–242
  2. ^ a b Jentschura, Jung and Mickel, p. 49
  3. ^ Jentschura, Jung and Mickel, p. 48
  4. ^ a b Peattie, p. 242
  5. ^ Brown, p. 22
  6. ^ a b c Tully
  7. ^ a b Lundstrom, p. 188
  8. ^ Stille, p. 32
  9. ^ Stille, pp. 46, 48
  10. ^ Lundstrom, p. 181
  11. ^ Stille, pp. 49, 51
  12. ^ Lundstrom, p. 179
  13. ^ Lundstrom, pp. 178, 181–182, 187
  14. ^ Stille, p. 52
  15. ^ Lundstrom, pp. 189–191
  16. ^ Lundstrom, pp. 193, 195–196
  17. ^ Lundstrom, pp. 198–206
  18. ^ Lundstrom, p. 205
  19. ^ Stille, p. 61
  20. ^ "Battle of the Coral Sea". The Aviation History On-Line Museum. Retrieved 10 January 2012.

References

Further reading

External links

16°07′14.17″S 151°54′47.02″E / 16.1206028°S 151.9130611°E / -16.1206028; 151.9130611