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W-7-class minesweeper

The No.7-class minesweepers (第七号型掃海艇,, Dai Nana Gō-gata Sōkaitei) were a class of minesweepers of the Imperial Japanese Navy (IJN), serving during the Second Sino-Japanese War and World War II. Six vessels were built in 1937–1939 under the Maru 3 Keikaku.

No.7 on 23 September 1942
Class overview
NameNo.7-class minesweeper
Builders
Operators Imperial Japanese Navy
Preceded byNo.13 class
Succeeded byNo.19 class
Cost2,230,823 JPY (in 1937)
Built1937 – 1939
In commission1938 – 1946
Planned6
Completed6
Lost5
Retired1
General characteristics
TypeMinesweeper
Displacement630 long tons (640 t) standard
Length72.50 m (237 ft 10 in) overall
Beam7.85 m (25 ft 9 in)
Draught2.60 m (8 ft 6 in)
Propulsion
  • 2 × triple expansion stages reciprocating engines
  • 2 × Kampon mix-fired boilers
  • 2 shafts, 3,850 shp
Speed20 knots (23 mph; 37 km/h)
Range2,000 nmi (3,700 km) at 14 kn (16 mph; 26 km/h)
Complement98
Armament

Background Edit

Ships in class Edit

Ship # Ship Builder Laid down Launched Completed Fate
49 No. 7[2] Tama Shipyard 27 October 1937 16 June 1938 15 December 1938 Sunk by HMS Storm off Port Blair on 15 April 1944. Decommissioned on 10 June 1944.
50 No. 8 Uraga Dock Company 11 December 1937 28 May 1938 15 February 1939 Scuttled by Royal Navy at Singapore on 10 July 1946. Decommissioned on 10 August 1946.
51 No. 9 Maizuru Naval Arsenal 7 February 1938 10 September 1938 15 February 1939 Struck a naval mine and sunk at Ambon on 1 February 1942. Decommissioned on 10 April 1942.
52 No. 10 Tōkyō Ishikawajima Shipyard 21 December 1937 22 September 1938 15 February 1939 Sunk by air raid off Vigan on 10 December 1941. Decommissioned on 15 March 1942.
53 No. 11 Uraga Dock Company 30 May 1938 28 December 1938 15 July 1939 Sunk by air raid off Makassar on 28 March 1945. Decommissioned on 10 May 1945.
54 No. 12 Tōkyō Ishikawajima Shipyard 28 May 1938 18 February 1939 15 August 1939 Sunk by USS Besugo off Flores 08°13′S 119°14′E / 8.217°S 119.233°E / -8.217; 119.233 on 6 April 1945. Decommissioned on 25 May 1945.

Footnotes Edit

  1. ^ No.7 (ex.-Umikaze), No.8 (ex.-Yamakaze), No.9 (ex.-Nara), No.10 (ex.-Enoki), No.11 (ex.-Nagatsuki) and No. 12 (ex.-Kikutsuki)
  2. ^ Minesweeper No. 7 (第七号掃海艇, Dai 7 Gō Sōkaitei). The same shall apply hereinafter.

Bibliography Edit

  • Ships of the World special issue Vol.45, Escort Vessels of the Imperial Japanese Navy, "Kaijinsha"., (Japan), February 1996
  • The Maru Special, Japanese Naval Vessels No.50, Japanese minesweepers and landing ships, "Ushio Shobō". (Japan), April 1981

class, minesweeper, class, minesweepers, 第七号型掃海艇, nana, gata, sōkaitei, were, class, minesweepers, imperial, japanese, navy, serving, during, second, sino, japanese, world, vessels, were, built, 1937, 1939, under, maru, keikaku, september, 1942class, overviewn. The No 7 class minesweepers 第七号型掃海艇 Dai Nana Gō gata Sōkaitei were a class of minesweepers of the Imperial Japanese Navy IJN serving during the Second Sino Japanese War and World War II Six vessels were built in 1937 1939 under the Maru 3 Keikaku No 7 on 23 September 1942Class overviewNameNo 7 class minesweeperBuildersMaizuru Naval Arsenal Tama Shipyard Tōkyō Ishikawajima Shipyard Uraga Dock CompanyOperators Imperial Japanese NavyPreceded byNo 13 classSucceeded byNo 19 classCost2 230 823 JPY in 1937 Built1937 1939In commission1938 1946Planned6Completed6Lost5Retired1General characteristicsTypeMinesweeperDisplacement630 long tons 640 t standardLength72 50 m 237 ft 10 in overallBeam7 85 m 25 ft 9 in Draught2 60 m 8 ft 6 in Propulsion2 triple expansion stages reciprocating engines 2 Kampon mix fired boilers 2 shafts 3 850 shpSpeed20 knots 23 mph 37 km h Range2 000 nmi 3 700 km at 14 kn 16 mph 26 km h Complement98Armament3 120 mm 4 7 in L 45 naval guns 2 25 mm AA guns 36 depth charges 1 Type 94 depth charge projector 6 paravanes Contents 1 Background 2 Ships in class 3 Footnotes 4 BibliographyBackground EditProject number I4 Improved model of the No 13 class They were built to update timeworn No 7 class No 9 class and No 11 class 1 Kampon deleted minelayer facility from them because IJN hoped they act in Yangtze River And they added to one 120 mm 5 in naval gun for engage with National Revolutionary Army Therefore the No 7 class had the silhouette which resembled the Chidori and Ōtori class torpedo boats Ships in class EditShip Ship Builder Laid down Launched Completed Fate49 No 7 2 Tama Shipyard 27 October 1937 16 June 1938 15 December 1938 Sunk by HMS Storm off Port Blair on 15 April 1944 Decommissioned on 10 June 1944 50 No 8 Uraga Dock Company 11 December 1937 28 May 1938 15 February 1939 Scuttled by Royal Navy at Singapore on 10 July 1946 Decommissioned on 10 August 1946 51 No 9 Maizuru Naval Arsenal 7 February 1938 10 September 1938 15 February 1939 Struck a naval mine and sunk at Ambon on 1 February 1942 Decommissioned on 10 April 1942 52 No 10 Tōkyō Ishikawajima Shipyard 21 December 1937 22 September 1938 15 February 1939 Sunk by air raid off Vigan on 10 December 1941 Decommissioned on 15 March 1942 53 No 11 Uraga Dock Company 30 May 1938 28 December 1938 15 July 1939 Sunk by air raid off Makassar on 28 March 1945 Decommissioned on 10 May 1945 54 No 12 Tōkyō Ishikawajima Shipyard 28 May 1938 18 February 1939 15 August 1939 Sunk by USS Besugo off Flores 08 13 S 119 14 E 8 217 S 119 233 E 8 217 119 233 on 6 April 1945 Decommissioned on 25 May 1945 Footnotes Edit No 7 ex Umikaze No 8 ex Yamakaze No 9 ex Nara No 10 ex Enoki No 11 ex Nagatsuki and No 12 ex Kikutsuki Minesweeper No 7 第七号掃海艇 Dai 7 Gō Sōkaitei The same shall apply hereinafter Bibliography EditShips of the World special issue Vol 45 Escort Vessels of the Imperial Japanese Navy Kaijinsha Japan February 1996 The Maru Special Japanese Naval Vessels No 50 Japanese minesweepers and landing ships Ushio Shobō Japan April 1981 Retrieved from https en wikipedia org w index php title W 7 class minesweeper amp oldid 1113870162, wikipedia, wiki, book, books, library,

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