Japanese submarine chaser CH-18

CH-18 was a No.13-class submarine chaser of the Imperial Japanese Navy during World War II.

Empire of Japan
Name: CH-18
Builder: Nippon Kokan K. K., Tsurumi
Laid down: 1941
Launched: 23 April 1941
Completed: 31 July 1941
Commissioned: 31 July 1941
Struck: 10 March 1945
Fate: Sunk by aircraft, 30 December 1944
General characteristics
Class and type: No.13-class submarine chaser
Displacement: 438 long tons (445 t) standard
Length: 51 m (167 ft 4 in) o/a
Beam: 6.7 m (22 ft 0 in)
Draught: 2.75 m (9 ft 0 in)
Propulsion: 2 × Kampon Mk.23A Model 8 diesels, 2 shafts, 1,700 bhp (1,268 kW)
Speed: 16 knots (30 km/h; 18 mph)
Range: 2,000 nmi (3,700 km) at 14 kn (26 km/h; 16 mph)
Complement: 68
Sensors and
processing systems:


CH-18 was laid down by Nippon Kokan K. K. at their Tsurumi Shipyard in 1941, launched on 23 April 1941, and completed and commissioned on 31 July 1941.[1] In May 1942, she participated in the Battle of Midway (Operation "MI") where she was assigned to Miyamoto Sadachika's 16th Minesweeper Unit (along with auxiliary minesweepers Tama Maru No. 3, Tama Maru No. 5, Showa Maru No. 7, Showa Maru No. 8; submarine chasers CH-16, and CH-17; cargo ships Meiyo Maru and Yamafuku Maru; and auxiliary ammunition ship Soya).[1]

On 30 December 1944, she was attacked and sunk near Santiago Island, Luzon by 26 land-based aircraft of the United States Fifth Air Force consisting of B-25 Mitchell medium bombers, A-20 Havoc light bombers, and P-40 Warhawk fighters (17°18′N 119°25′E / 17.300°N 119.417°E / 17.300; 119.417Coordinates: 17°18′N 119°25′E / 17.300°N 119.417°E / 17.300; 119.417) while conducting escort duty.[1][2]

CH-18 was struck from the Navy List on 10 March 1945.[1]


  1. ^ a b c d Hackett, Bob; Kingsepp, Sander (2012). "IJN Subchaser CH-18". combinedfleet.com. Retrieved 9 August 2019.
  2. ^ "Chapter VII: 1944". The Official Chronology of the U.S. Navy in World War II. 2006. Retrieved 9 August 2019.

Additional referencesEdit

  • "Escort Vessels of the Imperial Japanese Navy special issue". Ships of the World (in Japanese). Vol. 45. Kaijinsha. February 1996.
  • Model Art Extra No.340, Drawings of Imperial Japanese Naval Vessels Part-1 (in Japanese). Model Art Co. Ltd. October 1989.
  • The Maru Special, Japanese Naval Vessels No.49, Japanese submarine chasers and patrol boats (in Japanese). Ushio Shobō. March 1981.