4th Naval Armaments Supplement Programme

The 4th Naval Armaments Supplement Program (マル4計画, 第四次海軍軍備充実計画, Maru 4 Keikaku, Dai-Yo-Ji Kaigun Gunbi Jūjitsu Keikaku) was one of the armaments expansion plan of the Imperial Japanese Navy (IJN).

Background

In 1939, the IJN started new naval armaments expansion plan. It extended to 80 warships and 75 Naval Air Groups by 1.6 billion JPY.

Table of vessels

Category Class Vessel number(s) Completed Converted Cancelled
Training cruiser Katori #101 Kashii (#101)
Minelayer Hatsutaka #102 Wakataka (#102)
Combat support ship Sunosaki #103 Sunosaki (#103)
Destroyer Type-B Akizuki #104109 Akizuki (#104), Teruzuki (#105), Suzutsuki (#106), Hatsuzuki (#107), Niizuki (#108), Wakatsuki (#109)
Battleship Yamato #110111 #110 was converted to aircraft carrier #111
Aircraft carrier Shinano Shinano (#110)
Destroyer Type-A Kagerō #112114 Arashi (#112), Hagikaze (#113), Maikaze (#114), Akigumo (#115) #115 was converted from the Yūgumo class
Yūgumo #115129 Yūgumo (#116), Makigumo (#117), Kazagumo (#118), Naganami (#119), Makinami (#120), Takanami (#121), Ōnami (#122), Kiyonami (#123), Tamanami (#124), Suzunami (#126), Fujinami (#127) #115 was converted to the Kagerō class
#125 was converted to the Shimakaze class
#128 and #129 were dummy of naval budget of the Yamato-class battleships
Destroyer Type-C Shimakaze Shimakaze (#125)
Aircraft carrier Taihō #130 Taihō (#130)
Seaplane tender Akitsushima #131 Akitsushima (#131)
Light cruiser Type-B Agano #132135 Agano (#132), Noshiro (#133), Yahagi (#134), Sakawa (#135)
Light cruiser Type-C Ōyodo #136137 Ōyodo (#136) #137
Cruiser submarine Type-A I-9 #138 I-11 (#138)
Cruiser submarine Type-B I-15 #139153 I-26 (#139) to I-39 (#152) #153 was dummy of naval budget of the Yamato-class battleships
Large sized submarine I-176 #154163 I-176 (#154) to I-185 (#163)
Minesweeper No.19 #164169 No.19 (#164) to No.24 (#169)
Minelayer Sokuten #170179 Hirashima (#170), Hōko (#171), Ishizaki (#172), Takashima (#173), Saishū (#174), Niizaki (#175), Yurijima (#176), Nuwajima (#177), Maeshima (#178) #179
Subchaser No.13 #180183 No.13' (#180) to No.16 (#183)
Cable layer Hashima [1] Hashima, Tsurushima, Ōdate, Tateishi
Food supply ship No.4006 [1] No.4006 (later renamed Kinesaki)
No.4007 [1] No.4007 (later renamed Nosaki)

Notes

  1. They do not have a vessel number(s), because they were demanded as support vessels.

References

  • Senshi Sōsho Vol.31, Naval armaments and war preparation (1), "Until November 1941", Asagumo Simbun (Japan), November 1969

See also

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