Japanese frigate Kaiyō Maru

History
Tokugawa Shogunate
Name: Kaiyō Maru
Ordered: 1863
Builder: C.Gips and Sons, Dordrecht, Netherlands
Laid down: August 1863
Launched: 3 November 1865
Commissioned: 10 September 1866
Fate: Became part of navy of Ezo Republic 1868
History
Ezo Republic
Name: Kaiyō Maru
Acquired: 1868
Fate: Wrecked 15 November 1868
General characteristics
Type: Frigate
Displacement: 2,590 long tons (2,632 t)
Length: 72.2 m (236 ft 11 in) o/a
Beam: 13.04 m (42 ft 9 in)
Draught: 6.4 m (21 ft)
Propulsion: Coal-fired auxiliary steam engine, 400 hp
Sail plan:
  • Ship-rigged 3-masted sailboat
  • Sail area 20,970 m2 (225,700 sq ft)
Speed: 10 knots (12 mph; 19 km/h)
Armament:
  • 18 × 16 cm (6.3 in) guns
  • 8 × 30-pounder guns
  • 5 more cannons later

Kaiyō Maru (開陽丸) was one of Japan's first modern warships, a frigate powered by both sails and steam. She was built in the Netherlands, and served in the Boshin War as part of the navy of the Tokugawa shogunate, and later as part of the navy of the Republic of Ezo. She was wrecked on 15 November 1868, off Esashi, Hokkaido, Japan.

Construction and design

Launch of Kayō Maru in Dordrecht, 1865

Kaiyō Maru was ordered in 1863, and built by Cornelis Gips and Sons, in Dordrecht, Netherlands, for a sum of 831,200 guilders.[1] Her construction was overseen by a Japanese military mission under Uchida Masao and Akamatsu Noriyoshi.[2] She was launched in October of 1866,[3] and arrived in Japan in November of the same year.[4] She was the largest wooden warship ever built by a Dutch shipyard at the time.[5] She was 240 feet (73 m) long.[1]

Career

Part of the fleet of Enomoto Takeaki off Shinagawa in 1868. Kaiyō Maru is second from right.
Kaiyō Maru replica in Esashi

In January 1868 Kaiyō Maru was engaged in a battle off of Awaji, where she, Emperor, and Fujiyama battled against the Satsuma Navy's Lotus, Kang Su, and Scotland. In this battle Scotland was sunk off the coast of Awa.[6]

In late January of 1868, Kaiyō Maru, Kanrin Maru, Hōō Maru, and five other modern ships fled to Hokkaido, under Admiral Enomoto Takeaki. They carried a handful of French military advisors, and their leader Jules Brunet. While in Hokkaido, they became a part of the navy of the short-lived Ezo Republic, founded by Enomoto Takeaki.[7] Kaiyō Maru became the flagship of the navy of the Ezo Republic, but she soon was wrecked off Esashi, Hokkaido, Japan, during a storm on 15 November 1868.[8]

Salvage

The guns and ship chandlery of the Kaiyō Maru were discovered on the seafloor on August 14, 1968 by the submarine Yomiurigo. Further remains were discovered but project financing prevented the salvage at that time however several items were recovered in 1969. Dives were conducted in August 1974 that confirmed a need for excavation of the extensive remains. Full scale excavation of the wreck from a depth of 15 meters began in June 1975. The salvage of portions of the wreck located in the open sea were completed in seven years. The inland portions of the wreck were slowed by poor visibility. Costs for the salvage totaled over 3 million yen by 1985.[9] Desalinization of the recovered artifacts began upon recovery.[10] A replica of the Kaiyō Maru was constructed in 1990. She is now on display at the docks in Esashi and has become a tourist attraction showing the salvaged remains of the original ship.[11]

References

Citations

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Journals

Coordinates: 41°51′57″N 140°07′02″E / 41.8658°N 140.1172°E / 41.8658; 140.1172

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