IJN Nisshin

Sunk

Type	Seaplane tender
War	Second World War
Main guns	6 × 5.5″ guns in 3 twin mounts

Seaplane tender and minelayer used as a fast transport in the Solomons. Sunk by US aircraft off Bougainville on 22 July 1943 with heavy loss among the troops aboard.

Japanese seaplane carrier Nisshin, in speed testing, 19 February 1942. Photo: Photograph taken at the Kure Naval Arsenal (呉海軍工廠撮影), Public domain · Wikimedia Commons

Armament and specifications

Armament

6 × 14 cm/50 3rd Year Type naval guns (3 × 2)
24 × Type 96 25 mm AA guns (8 × 3)
2 × Yamanouchi 5 cm salute guns (2 × 1)

Builder	Kure Naval Arsenal
Laid down	2 November 1938
Launched	30 November 1939
Commissioned	27 February 1942
Displacement	11,317 long tons (11,499 t) (standard) 12,500 long tons (12,701 t) (full load)
Length	192.5 m (631 ft 7 in) OA 174 m (570 ft 10 in) P-P
Speed	28 kn (52 km/h; 32 mph)
Complement	633 (in 1943) 789 (maximum)

As built, from the ship's Wikipedia article. Figures there may cover later refits too.

Career

She isn't listed in any of the fleet actions covered here.

Launched

30 November 1939