Rapid Naval Armaments Supplement Programme

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The Rapid Naval Armaments Supplement Programme (マル急計画, 出師準備第一着作業建艦計画, Maru Kyū Keikaku, Suishi-Junbi Dai-Ichi Chakusagyō Kenkan Keikaku) was one of the armaments expansion plan of the Imperial Japanese Navy (IJN).

Background[edit]

In August 1941, the IJN started building warships for war. It extended to 293 vessels, 300,000 tons.

Table of vessels[edit]

Category Class Vessel number(s) Completed Converted Cancelled
Heavy cruiser Ibuki #300 - 301 #300 was converted to aircraft carrier #301
Aircraft carrier Unryū #302 Unryū (#302)
Seaplane tender Akitsushima #303 #303
Fleet oiler Kazahaya #304 - 307 Kazahaya (#304) #306 was converted to the Hayasui class #305, 307
Hayasui Hayasui (#306)
Escort ship Type-A Etorofu #310 - 339 Etorofu (#310), Matsuwa (#311), Sado (#312), Oki (#313), Mutsure (#314), Iki (#315), Tsushima (#316), Wakamiya (#317), Hirato (#318), Fukae (#319), Amakusa (#321), Manju (#323), Kanju (#325), Kasado (#330) #320, #322, #324, #326 - 329 and #331 - 339 were converted to the Mikura class
Escort ship Type-B Mikura Mikura (#320), Miyake (#322), Awaji (#324), Nōmi (#326), Kurahashi (#327), Chiburi (#329), Yashiro (#331), Kusagaki (#334) #328, #333 and #339 were converted to the Hiburi class
#332 and #335 - 338 were converted to the Ukuru class
Hiburi Hiburi (#328), Daitō (#333), Shōnan (#339)
Ukuru Ukuru (#332), Okinawa (#335), Amami (#336), Aguni (#337), Shinnan (#338)
Destroyer Type-A Yūgumo #340 - 355 Hayanami (#340), Hamanami (#341), Okinami (#342), Kishinami (#343), Asashimo (#344), Hayashimo (#345), Akishimo (#346), Kiyoshimo (#347) #348 - 355
Destroyer Type-B Akizuki #360 - 369 Shimotsuki (#360), Fuyutsuki (#361), Harutsuki (#362), Yoizuki (#363), Natsuzuki (#364), Hanazuki (#366) #367 - 369
Cruiser submarine Type-B I-40 #370 - 375 I-40 (#370) to I-45 (#375)
Cruiser submarine Type-C I-16 #376 - 378 I-46 (#376) to I-48 (#378)
S49B #379 - 381 #379 - 381
Medium-sized submarine Ro-35 #385 - 396 Ro-44 (#385) to Ro-50 (#391), Ro-55 (#396) #392 - 395
Ro-100 #400 - 408 Ro-109 (#400) to Ro-117 (#408),
Minesweeper No.19 #410 - 437 No.25 (#410) to No.30 (#415), No.33 (#418), No.34 (#419), No.38 (#423), No.39 (#424), No.41 (#426) #416 - 417, #420 - 422, #425, #427 - 437
Subchaser No.13 #440 - 459 No.40 (#440) to No.58 (#458) #459
Minelayer Ajiro #460 - 473 Ajiro (#460) #461 - 473
Auxiliary minesweeper Aux. No.1 #480 - 495 Aux. No.7 (#480) to Aux. No.22 (#495)
Auxiliary subchaser Aux. No.1 #500 - 599 Aux. No.1 (#500) to Aux. No.100 (#599)
Patrol torpedo boat No.10 #600 No.10 (#600)
No.11 #601 - 617 No.11 (#601) to No.16 (#606) #607 - 617

See also[edit]

References[edit]

  • Rekishi Gunzō series, Gakken (Japan)
  • The Maru Special series, Ushio Shobō
  • Daiji Katagiri, Ship Name Chronicles of the Imperial Japanese Navy Combined Fleet, Kōjinsha (Japan), June 1988, ISBN 4-7698-0386-9
  • 大日本帝国海軍艦艇一覧 (ja)
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