Kaimei Maru

Kaimei Maru was a Japanese troop transport ship operated by the Imperial Japanese Army during World War II which was sunk off Honshu on 4 September 1942 by the American submarine USS Guardfish. The ship was a British WWI Type B military cargo ship built by the Hong Kong and Whampoa Dock Company.

Japanese troops landing in the Philippines during the invasion at Luzon
History
United Kingdom
NameWar Bomber[1]
BuilderHong Kong and Whampoa Dock, Hong Kong[2]
Yard number563[1]
Laid down1918
Launched1 August 1919
Sponsored byShipping Controller, London.
Stricken1919
FateSold to Lloyd Royal Belge in 1919, renamed Pioneer.
Belgium
NamePioneer[1]
Operator
BuilderHong Kong and Whampoa Dock[2]
Acquired1919
Commissioned1919[1]
Stricken1939
FateSold to Panama, renamed Carmar.[1]
Panama
NameCarmar[1]
BuilderHong Kong and Whampoa Dock[2]
Acquired1939
Commissioned1939[1]
Stricken1941
FateSold to Kaiyo Kisen K. K. of Kobe in 1941, renamed Kaimei Maru. Requisitioned and commissioned into Imperial Japanese Army service as troop transport allotted Army No. 262.[1]
Empire of Japan
NameKaimei Maru[1]
Owner
OperatorImperial Japanese Army, Army No. 262.[1]
BuilderHong Kong and Whampoa Dock[2]
Acquired13 November 1941 (requisitioned)
Commissioned13 November 1941 (by IJA)[1]
IdentificationJSNO 47589[3]
FateSunk by torpedo fired from USS Guardfish on 4 September 1942.[1]
General characteristics (as War Bomber British WWI Type B Standard cargo ship)
Class and typeBritish WWI Type B cargo ship[4]
Displacement5,226 tons, (8,000 tons deadweight)[1]
Length400 ft (120 m)[2]
Beam52 ft (16 m)[2]
Draft31 ft (9.4 m)[2]
PropulsionCoal-fired, triple expansion reciprocating steam engines with 27-inch cylinders[4]
Speed10.5 knots (19.4 km/h; 12.1 mph)[4]

Construction and commissioning

Kaimei Maru, then known as British ship War Bomber was ordered by London's Shipping Controller[1] and was built at the Hong Kong and Whampoa Dock. It was launched in Hong Kong on 1 August 1919 from Yard No. 563.[2] War Bomber was configured as a British WWI Type B Standard cargo ship although its specifications were larger in scale than standard for ships of this class.[4] Indeed, War Bomber was the largest ship built to date at any Hong Kong dockyard with a length of 400 feet (120 m), a width of 52 feet (16 m) and a depth of 31 feet (9.4 m).[2] War Bomber displaced 5,226 tons[1] with a record deadweight tonnage of 8,000 tons.[2] The launch was attended by Sir Catchick Paul Chater, then Director of the Hong Kong and Whampoa Dock Company and by Sir Claud Severn, the acting Governor of Hong Kong.[2] Later in October 1919, the Hong Kong and Whampoa Dock Company would also launch War Bomber's sister ship, War Trooper.[2]

Belgian service

During the vessel's tenure as a Belgian ship, she was called Pioneer. Pioneer was purchased by Lloyd Royal Belge of Antwerp where she continued service for a decade until she was transferred to Compagnie Maritime Belge, also of Antwerp, which had acquired Belgian shipowner Lloyd Royal Belge in 1930. Pioneer continued her Belgian service for another decade before being sold to Panamanian shipowner Agencia Maritima Carmar in 1939 where she was renamed as Carmar.[1]

Panamanian service

In 1939, Kaimei Maru, then known as Carmar, was purchased by the Agencia Maritima Carmar Ltda. of Panama. In 1941, Carmar was sold to Kaiyo Kisen K. K. of Kobe, Japan.[1]

Japanese service

On 13 November 1941, Kaimei Maru was requisitioned by the Imperial Japanese Army for service as a troop transport.[1]

Invasion of the Philippines

Kaimei Maru was assigned to Army group 262, which supported the 14th Army troops, comprising elements of the 16th Division and 48th Division taking part in the Invasion of the Philippines. During the invasion, Kaimei Maru was one of around 20 Japanese army transports ferrying roughly 7,000 troops under the command of Count Hisaichi Terauchi, Lt. General Masaharu Homma and Maj. General Susumu Morioka for the campaign's operations around Lamon Bay, Luzon in December 1941. The invasion fleet was supported by elements of the Imperial Japanese Navy (IJN) including the IJN Southern Force under Vice Admiral Nobutake Kondō, IJN Philippines Invasion Group under Vice Admiral Ibō Takahashi and specialist forces of the Philippines Invasion Unit, 1st Base Force HQ under Rear Admiral Kyuji Kubo in command of Nagara.[5][1]

The Japanese invasion fleet departed from Koniya, Amami Oshima at 1500 on 17 December 1941 consisting of the transport ships Kaimei Maru, Bengal Maru, Dainichi Maru, Durban Maru, Kayo Maru, Kitano Maru, Kofuku Maru, Lisbon Maru, Nagato Maru, Nichiren Maru, Ryoka Maru, Ryuyo Maru, Shinsei Maru, Shinshu Maru, Taian Maru, Tatsuno Maru, Tofuku Maru, Toyama Maru, Toyohashi Maru and Tamon Maru No. 5. The IJN escort fleet consisted of the light cruiser Nagara, the heavy cruiser Ashigara, destroyers Tokitsukaze, Yukikaze, Kawakaze, Suzukaze, Umikaze, Yamakaze, minelayers Aotaka and Ikushima Maru, minesweepers No. W-7 and No. W-8, subchasers Japanese submarine chaser Shonan Maru No. 17 and Takunan Maru No. 5 and auxiliary gunboats Busho Maru, Keiko Maru, Kanko Maru and Myoken Maru and auxiliary netlayer Fukuei Maru No. 15. The fleet arrived at Lamon Bay at 02:00 on 24 December 1941 and the landings were relatively uncontested.[1]

Convoy duties

On 26 January 1942, Kaimei Maru departed Qingdao heading south in a convoy together with Durban Maru, Fuji Maru, Kayo Maru, Kofuku Maru, Lisbon Maru, Nichiren Maru, Shinsei Maru and Ume Maru. The convoy was escorted by the destroyer Hasu, Shinko Maru No. 1 and minelayer Sokuten. The convoy arrived safely at the Taichow Islands on 30 January 1942.[1]

On 2 February 1942, Kaimei Maru departed Mako in a convoy to Haiphong, Vichy Indochina together with Durban Maru, Fuji Maru, Kayo Maru, Kofuku Maru, Lisbon Maru, Shinsei Maru and Ume Maru. The convoy was escorted by torpedo boat Kasasagi. While the convoy was exiting the harbor, Lisbon Maru struck a Japanese defensive mine resulting in the loss of 19 hands. Lisbon Maru was towed to a nearby island and beached.[1]

Later in 1942, Kaimei Maru was sold to Tochigi Shoji K.K. of Wakamatsu-ku.[1]

Sinking

In early September 1942, Kaimei Maru departed Nagoya for Karafuto Prefecture via Otaru to pick up coal in a convoy together with Chita Maru and Tenryu Maru.[1]

On 4 September 1942, United States Navy submarine USS Guardfish, on her first patrol, attacked Kaimei Maru's convoy at Kuji Bay off the northeastern coast of Honshu. At 16:40, the American submarine fired a torpedo which impacted the hold of Kaimei Maru. Kaimei Maru sank at 17:20 with the loss of ten crew at 40°14′N 141°51′E. During the action, Guardfish also sank the cargo ship Tenryu Maru and the freighter Chita Maru.[6][7] At the time of her sinking, Kaimei Maru was still owned by Tochigi Shoji KK of Wakamatsu-ku.[3][1][8]

References
  1. Hackett, Robert (2019). "KAIMEI MARU: Tabular Record of Movement". combinedfleet.com. Robert Hackett. Retrieved 21 August 2019.
  2. "A brief history of the Hong Kong dockyards". mardep.gov.hk. Hong Kong Marine Department. 2019. Retrieved 20 August 2019.
  3. "Kaimei Maru (+1942)". wrecksite.eu. The Wrecksite. 2019. Retrieved 21 August 2019.
  4. Hackett, Robert (2019). "British WW1 Type B Standard Cargo Ships". combinedfleet.com. Robert Hackett. Retrieved 21 August 2019.
  5. Rottman, Gordon (2005). Japanese Army in World War II : Conquest of the Pacific 1941-42. Osprey Publishing. pp. 64–65. ISBN 1841767891.
  6. Kimble, David L. (1997). Chronology of U.S. Navy Submarine Operations in the Pacific, 1939-1942. New York: Merriam Press. p. 53. ISBN 1576380238.
  7. Bertke, Donald A; Smith, Gordon; Kindell, Don (2014). World War II Sea War, Vol 7. New York: Lulu. p. 90. ISBN 978-1937470111.
  8. "Guardfish Operational Timeline". ww2db.com. Lava Development LLC. 2019. Retrieved 21 August 2019.
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