History
Imperial Japanese Navy
Name	Cha-2
Builder	Shanxi Shipbuilding Iron Works Company, Ltd.
Laid down	7 February 1942
Launched	5 August 1942
Completed	15 March 1943
Commissioned	15 March 1943
Stricken	3 May 1947
Homeport	Yokosuka
Fate	Sunk by gunfire from HMS Tally-Ho, 6 October 1944
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-2 or No. 2 (Japanese: 第二號驅潜特務艇) was a No.1-class auxiliary submarine chaser of the Imperial Japanese Navy that served during World War II.

She was laid down on 7 February 1942 at the Ishinomaki shipyard of Shanxi Shipbuilding Iron Works Co., Ltd. (山西造船鉄工所) and launched on 5 August 1942.^[2] She was fitted with armaments at the Yokosuka Naval Arsenal, completed and commissioned on 15 March 1943, and assigned to the Yokosuka Defense Force, Yokosuka Naval District, where she served in waters around Japan as an escort and sub chaser.^[2] On 1 June 1943, she was reassigned to the Southwest Area Fleet.^[2]

On 6 October 1944 she was attacked and sunk by gunfire from the British submarine Tally Ho west of Penang at 04°20′N 098°24′E / 4.333°N 98.400°E / 4.333; 98.400.^[2][3] She was removed from the Navy List on 3 May 1947.^[2]