Japanese gunboat Un'yō

Un'yō (雲揚, Rising Cloud) was an iron-ribbed, wooden-hulled sail-and-steam gunboat of the early Meiji period, serving with the fledgling Imperial Japanese Navy. She was a two-masted brig with an auxiliary coal-fired steam engine driving a single screw.

For other ships with the same name, see Japanese ship Un'yō.
Japanese warship Un'yō
History
Name: Un'yō
Builder: A. Hall & Co., Aberdeen, United Kingdom
Launched: 1868
Acquired: February 1870 (by Chōshū Domain)
Commissioned: July 4, 1870
Decommissioned: October 31, 1876
Fate: Scrapped and sold, May 14, 1877
General characteristics
Displacement: 245 long tons (249 t)
Length:
  • 35 m (114 ft 10 in) p-p
  • 35 m (114 ft 10 in) (waterline)
Beam: 7.5 m (24 ft 7 in)
Draught: 3.3 m (10 ft 10 in)
Propulsion: 1-shaft Coal-fired steam engine, 60 ihp (45 kW)
Sail plan: 2-masted brig
Speed: 10 knots
Complement: 65
Armament:
  • 1 × 16 cm (6.3 in) gun
  • 1 × 14 cm (5.5 in) gun

Background

Un'yō was ordered in Britain by the Chōshū Domain in 1868. She was built by A. Hall & Co., Aberdeen, Scotland, and was turned over to the Domain in February 1870 as the Un'yō Maru. On July 25, 1871, she was transferred to the Meiji government and assigned to the newly formed Imperial Japanese Navy, as the Un'yō .

Imperial Japanese Navy

Un'yō was one of the ships dispatched to Kyūshū in 1874 during the Saga Rebellion. In May 1875, she carried diplomats to Busan in Korea in an attempt by the Japanese government to open diplomatic relations with the Joseon dynasty government. After they were rebuffed in these negotiations, the Japanese government again dispatched Un'yō in September 1875 under the command of Inoue Yoshika to provoke a military response, in what was later termed the Ganghwa Island incident. This eventually led to the Treaty of Ganghwa, which opened the Korean Peninsula to Japanese trade.[1] In 1876, Un'yō was assigned to assist in the suppression of the Hagi Rebellion, another uprising of disaffected former samurai. Un'yō was severely damaged when she ran aground off the coast of the Kii Peninsula, and was scrapped the following year.

Notes
  1. Nahm, Andrew C. (1993). Introduction to Korean History and Culture, page 146–147. Seoul: Hollym Corporation. ISBN 0-930878-08-6

References
  • Jane, Frederick Thomas. The Imperial Japanese Navy. Nabu Press (2010 POD reprint of 1923 edition) ISBN 1-142-91693-6
  • Jentschura, Hansgeorg; Jung, Dieter & Mickel, Peter (1977). Warships of the Imperial Japanese Navy, 1869–1945. Annapolis, Maryland: United States Naval Institute. ISBN 0-87021-893-X.
  • Lengerer, Hans (2020). "The Kanghwa Affair and Treaty: A Contribution to the Pre-History of the Chinese–Japanese War of 1894–1895". Warship International. International Naval Research Organization. LVII (2): 110–131. ISSN 0043-0374.
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