Futami around 1933
History
Empire of Japan
Name	Futami
Ordered	1927 Fiscal Year
Builder	Fujinagata Shipyards, Japan
Laid down	25 June 1929
Launched	20 November 1929
Completed	28 February 1930
Stricken	30 September 1945
Republic of China
Name	Yung An
Acquired	1946
Fate	Captured by PRC in Chinese Civil War
China
Name	Zhu Jiang
Acquired	30 November 1949
Fate	Scrapped in 1960s
General characteristics
Type	River gunboat
Displacement	203 long tons (206 t) (design) 249 long tons (253 t) (actual)
Length	46.3 m (151 ft 11 in)
Beam	6.79 m (22 ft 3 in)
Draught	1.13 m (3 ft 8 in)
Propulsion	2-shaft reciprocating VTE engines; 2 boilers; 1,300 hp (970 kW)
Speed	16 knots (30 km/h; 18 mph)
Range	1,000 nmi (1,900 km; 1,200 mi) at 10 knots (19 km/h; 12 mph)
Complement	54
Armament	1 × 80 mm (3.1 in)/45 cal. guns 5 × 7.7 mm (0.30 in) machine guns

Futami (二見) was a river gunboat of the Imperial Japanese Navy, part of the 11th Gunboat Sentai, that operated on the Yangtze River in China during the 1930s, and during the Second Sino-Japanese War and World War II.

Futami was the second of two vessels in the Atami-class river gunboats built under the 1927 Fleet Building Program of the Imperial Japanese Navy for operations on the inland waterways of China.^[1]

The Atami-class river gunboats were an improved version of the previous Japanese gunboat Seta design. Futami had a hull with an overall length of 46.03 metres (151 ft 0 in) and beam of 6.79 metres (22 ft 3 in), with a normal displacement of 338 tons and draft of 1.13 metres (3 ft 8 in). She was propelled by two reciprocating engines with two Kampon boilers driving two shafts, producing 1,300 horsepower (970 kW) and had a top speed of 16 knots (30 km/h; 18 mph).^[1]

The ship was initially armed with one 80 mm (3.1 in)/28 caliber guns and five 7.7 mm (0.30 in) machine guns.^[1]

Futami was laid down on 25 June 1929 and launched on 20 November 1929 at the Fujinagata Shipyards in Osaka, Japan. Although most Japanese river gunboats were incapable of open ocean sailing, and had to be broken down into sections and shipped for reassembly in Shanghai, Futami was successfully sailed to China in 1930. She was assigned to patrols of the Yangtze River from Shanghai to the Three Gorges, for commerce protection and as a show of force in protection of Japanese nationals and economic interests from 1 June 1931. On 14 June 1933, she ran aground on uncharted rocks in the Yangtze River and could not be refloated and repaired until August.^[2]

With the start of the Second Sino-Japanese War, Futami was based in Hankou, together with the minelayer Yaeyama, and gunboats Katata and Hozu and a detachment of 292 marines of the Special Naval Landing Force (SNLF) to protect Japanese residents in the interior of China.^[2]

From February to May 1939, Futami was part of the Japanese attempt to seize Battle of Nanchang under the command of the China Area Fleet's 1st China Expeditionary Fleet. She remained based out of Hankou throughout World War II and was removed from the navy list on 30 September 1945.^[2]

In 1946, she was ceded to the Republic of China as a prize of war, and commissioned into the Republic of China Navy as the Yung An (Chinese: 永安). After the Chinese Civil War and commissioned into the People's Liberation Army Navy on 30 November 1949 as the gunboat Zhu Jiang (Chinese: 珠江). She was finally scrapped in the 1960s.

• Konstam, Angus (2012). Yangtze River Gunboats 1900-49. Osprey Publishing. ISBN 9781849084086.
• Gardner, Robert (1985). Conway's All the World's Fighting Ships 1906–1921. Conway Marine Press. ISBN 0-85177-245-5.
• Jentsura, Hansgeorg (1976). Warships of the Imperial Japanese Navy, 1869-1945. Annapolis, MD: Naval Institute Press. ISBN 0-87021-893-X.

• Nishida, Hiroshi. "Materials of IJN". Imperial Japanese Navy.
• Japanese gunboats (with photos) (in Japanese)
• Monograph 144 Chapter II
• Parshall, Jonathan. "IJN River Gunboat FUTAMI: Tabular Record of Movement". Combinedfleet.com.