Modified 5th Naval Armaments Supplement Programme explained

The was one of the wartime armaments expansion plans of the Imperial Japanese Navy (IJN).

Background

In September 1942, after being defeated in the Battle of Midway, the IJN drew up a new armaments expansion plan. This plan was combined by the 5th Naval Armaments Supplement Programme and the 6th Naval Armaments Supplement Programme to build the aircraft carriers rapidly. The main article was to build 20 aircraft carriers, and removed all battleships and heavy cruisers. They had approved 412 vessels, 1,150,000 tons. However, most of plans were not achieved. Until the end of the war only 60 vessels from this plan were completed.

Table of vessels

CategoryClassVessel number(s)CompletedConvertedCancelled
Aircraft carrierUnryū
  1. 5001 - 5015
Amagi (#5001), Katsuragi (#5003)
  1. 5002 and #5005 were converted to the Shinano
  1. 5008 - 5015
G15 (Modified Taiho)
  1. 5021 - 5025
  1. 5021 - 5025
Seaplane tenderAkitsushima
  1. 5031 - 5033
  1. 5031 - 5033
Submarine tenderJ27
  1. 5034 - 5036
  1. 5034 - 5036
Light cruiserC44
  1. 5037 - 5038
  1. 5037 - 5038
MinelayerH12C
  1. 5039
  1. 5039
Destroyer Type-AYūgumo
  1. 5041 - 5048
  1. 5041 - 5048
Destroyer Type-BAkizuki
  1. 5061 - 5083
  1. 5061 - 5083
Cruiser submarine Type-AI-13
  1. 5091 - 5093
I-14 (#5091)
S48
  1. 5094 - 5096
  1. 5094 - 5096
Cruiser submarine Type-BI-54
  1. 5101 - 5114
  1. 5101 - 5114
S49A
  1. 5115 - 5132
  1. 5115 - 5132
Cruiser submarine Type-CI-52
  1. 5141 - 5155
  1. 5141 - 5155
S49B
  1. 5156 - 5180
  1. 5156 - 5180
Medium-sized submarineRo-35
  1. 5181 - 5223
  1. 5181 - 5223
Submarine Special typeI-400
  1. 5231 - 5248
I-400 (#5231), I-401 (#5232), I-402 (#5233)
  1. 5234 - 5248
Escort ship Type-BUkuru
  1. 5251 - 5284
Yaku (#5251), Chikubu (#5253), Kōzu (#5255), Hodaka (#5256), Ikara (#5258), Ikuno (#5260)
  1. 5252, 5254, 5257, 5259 and 5263 - 5266 were converted to the Hiburi class
  1. 5261 - #5262, 5267 - 5284
HiburiKume (#5252), Ikuna (#5254), Shisaka (#5257), Sakito (#5259), Mokuto (#5263), Habuto (#5264)
  1. 5265 - 5266
MinesweeperNo.19
  1. 5301–5336
  1. 5301–5336
SubchaserNo.13
  1. 5341–5370
No.60 (#5341), No.61 (#5342), No.63 (#5344)
  1. 5343, 5345–5370
Fleet oilerKazahaya
  1. 5381–5387
  1. 5381–5387
J34
  1. 5388–5395
  1. 5388–5395
Food supply shipKinesaki
  1. 5401–5407
  1. 5401–5407
J20C
  1. 5408
  1. 5408
J35
  1. 5409–5410
  1. 5409–5410
Target shipŌhama
  1. 5411–5415
Ōhama (#5411)
  1. 5412–5415
Repair shipAkashi
  1. 5416–5417
  1. 5416–5417
Survey shipJ11C
  1. 5418
  1. 5418
IcebreakerJ23
  1. 5419
  1. 5419
MinelayerAjiro
  1. 5421–5432
  1. 5421–5432
Patrol torpedo boatPT-11
  1. 5441--5458
  1. 5441--5458
Submarine Type-DI-361
  1. 5461–5471
I-361 (#5461), I-362 (#5462), I-363 (#5463), I-364 (#5464), I-365 (#5465), I-366 (#5466), I-367 (#5467), I-368 (#5468), I-369 (#5469), I-370 (#5470), I-371 (#5471)
Destroyer Type-DMatsu
  1. 5481–5522
Matsu (#5481), Take (#5482), Ume (#5483), Momo (#5484), Kuwa (#5485), Kiri (#5486), Sugi (#5487), Maki (#5488), Momi (#5489), Kashi (#5490), Kaya (#5492), Nara (#5493), Sakura (#5496), Yanagi (#5497), Tsubaki (#5498), Kaki (#5499), Kaba (#5500), Hinoki (#5502), Kaede (#5505), Keyaki (#5508), Tachibana (#5511), Tsuta (#5514), Hagi (#5517), Sumire (#5520), Kusunoki (#5521), Hatsuzakura (#5522)
  1. 5491, 5494–5495, 5501, 5503–5504, 5506–5507, 5509–5510, 5512–5513, 5515–5516, 5518–5519

See also

References

改マル5計画 (ja)

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