History
Empire of Japan
Name	Cha-13
Builder	Fukuoka Shipbuilding Co., Ltd., Fukuoka
Laid down	30 January 1942
Launched	28 February 1943
Completed	12 March 1943
Commissioned	12 March 1943
Stricken	30 April 1944
Homeport	Sasebo
Fate	Sunk by aircraft, 30 April 1943
General characteristics
Class and type	No.1-class Submarine chaser
Displacement	130 long tons (132 t) standard[1]
Length	29.20 m (95 ft 10 in) overall
Beam	5.65 m (18 ft 6 in)
Draught	1.97 m (6 ft 6 in)
Propulsion	1 × intermediate diesel shingle shaft, 400 bhp
Speed	11.0 knots (12.7 mph; 20.4 km/h)
Range	1,000 nmi (1,900 km) at 10.0 kn (11.5 mph; 18.5 km/h)
Complement	32
Armament	1 × 7.7 mm machine gun 22 × depth charges 1 × dunking hydrophone 1 × simple sonar From mid 1943, the 7.7 mm machine gun was replaced with a 13.2mm machine gun

Cha-13 or No. 13 (Japanese: 第十三號驅潜特務艇) was a No.1-class auxiliary submarine chaser of the Imperial Japanese Navy that served during World War II.

History

She was laid down on 30 January 1942 at the Fukuoka shipyard of the Fukuoka Shipbuilding Co., Ltd. and launched on 28 February 1943.^[2] She was completed on 12 March 1943 and assigned to the Sasebo Defense Force, Sasebo Naval District.^[2] On 1 June 1943, she was reassigned to support Army operations in the South Pacific and order to proceed to Rabaul.^[2]

On 1 November 1943 she was attacked and sunk by aircraft from Task Force 38 east of Shortland Island at 07°00′S 155°30′E / 7.000°S 155.500°E / -7.000; 155.500.^[2][3] She was removed from the Navy List on 30 April 1944.^[2]