Japanese submarine chaser CH-18

Submarine chaser of the Imperial Japanese Navy

History

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
Stricken	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	1 × Type 93 active sonar 1 × Type 93 hydrophone
Armament	1 × 76.2 mm (3 in) L/40 AA gun 2 × Type 93 13.2 mm (0.52 in) AA guns 36 × Type 95 depth charges 2 × Type 94 depth charge projectors 1 × depth charge thrower

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

History

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. 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).

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; 119.417) while conducting escort duty.

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

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

"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.

v t e Shipwrecks and maritime incidents in December 1944
Shipwrecks	1 Dec: HMS Empire Dace 2 Dec: Hawaii Maru 3 Dec: USS Cooper, Revoljucija 4 Dec: Kishinami 5 Dec: Hozu, USS LSM-149 6 Dec: Antoine Saugrain, HMS Bullen, U-297 7 Dec: USS Mahan, USS Ward 9 Dec: U-387 10 Dec: William S. Ladd 11 Dec: USS Reid 12 Dec: Uzuki, U-416, Yūzuki, Z35, Z36 13 Dec: U-365 14 Dec: HMS Aldenham 15 Dec: USS LST-472, USS LST-738 17 Dec: U-772 18 Dec: USS Hull, USS Monaghan, Schleswig-Holstein, USS Spence, Theresia L M Russ, U-1209, Zähringen 19 Dec: U-737, Unryū 21 Dec: USS LST-460, USS LST-749 22 Dec: USS LST-563 24 Dec: Alan-A-Dale, HMCS Clayoquot, Léopoldville 26 Dec: HMS Capel, Kiyoshimo, U-2342, Benjamin Ide Wheeler 27 Dec: U-877 28 Dec: Empire Javelin, John Burke, U-735 29 Dec: U-322 30 Dec: USS Porcupine, Hobart Baker 31 Dec: U-2530 Unknown date: Ha-83, U-196, U-400
Other incidents	5 Dec: Antoine Saugrain, Hira 8 Dec: USS Huron 9 Dec: Jun'yō 13 Dec: Myōkō, USS Nashville 14 Dec: Schauenberg 25 Dec: HMS Dakins 26 Dec: HMS Affleck 30 Dec: Juan de Fuca, USS Orestes Unknown date: HMS Charlestown, U-262
1943 1944 1945 November 1944 January 1945

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