Modified 5th Naval Armaments Supplement Programme Japanese armaments expansion plan
The Modified 5th Naval Armaments Supplement Programme (改マル5計画, 戦備促進第二次実行計画 Kai-Maru 5 Keikaku, Senbi-Sokushin Dai-Ni-Ji Jikkō Keikaku 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
Category
Class
Vessel number(s)
Completed
Converted
Cancelled
Aircraft carrier
Unryū #5001–5015
Amagi Katsuragi #5002 and #5005 were converted to the Shinano
#5008–5015
G15 (Modified Taiho )#5021–5025
#5021–5025
Seaplane tender
Akitsushima #5031–5033
#5031–5033
Submarine tender
J27
#5034–5036
#5034–5036
Light cruiser
C44
#5037–5038
#5037–5038
Minelayer
H12C #5039
#5039
Destroyer Type-A
Yūgumo #5041–5048
#5041–5048
Destroyer Type-B
Akizuki #5061–5083
#5061–5083
Cruiser submarine Type-A
I-13 #5091–5093
I-14
S48 #5094–5096
#5094–5096
Cruiser submarine Type-B
I-54 #5101–5114
#5101–5114
S49A #5115–5132
#5115–5132
Cruiser submarine Type-C
I-52 #5141–5155
#5141–5155
S49B #5156–5180
#5156–5180
Medium-sized submarine
Ro-35 #5181–5223
#5181–5223
Submarine Special type
I-400 #5231–5248
I-400 I-401 I-402
#5234–5248
Escort ship Type-B
Ukuru #5251–5284
Yaku Chikubu Kōzu Hodaka Ikara Ikuno #5252, 5254, 5257, 5259 and 5263–5266 were converted to the Hiburi class
#5261–#5262, 5267–5284
Hiburi
Kume Ikuna Shisaka Sakito Mokuto Habuto
#5265–5266
Minesweeper
No.19 #5301–5336
#5301–5336
Subchaser
No.13 #5341–5370
No.60 No.61 No.63
#5343, 5345–5370
Fleet oiler
Kazahaya #5381–5387
#5381–5387
J34
#5388–5395
#5388–5395
Food supply ship
Kinesaki #5401–5407
#5401–5407
J20C #5408
#5408
J35
#5409–5410
#5409–5410
Target ship
Ōhama #5411–5415
Ōhama (#5411)
#5412–5415
Repair ship
Akashi #5416–5417
#5416–5417
Survey ship
J11C #5418
#5418
Icebreaker
J23
#5419
#5419
Minelayer
Ajiro #5421–5432
#5421–5432
Submarine Type-D
I-361 #5461–5471
I-361 I-362 I-363 I-364 I-365 I-366 I-367 I-368 I-369 I-370 I-371
Destroyer Type-D
Matsu #5481–5522
Matsu Take Ume Momo Kuwa Kiri Sugi Maki Momi Kashi Kaya Nara Sakura Yanagi Tsubaki Kaki Kaba Hinoki Kaede Keyaki Tachibana Tsuta Hagi Sumire Kusunoki Hatsuzakura
#5491, 5494–5495, 5501, 5503–5504, 5506–5507, 5509–5510, 5512–5513, 5515–5516, 5518–5519
See also
1st Naval Armaments Supplement Programme (Maru 1 Keikaku, 1931)2nd Naval Armaments Supplement Programme (Maru 2 Keikaku, 1934)3rd Naval Armaments Supplement Programme (Maru 3 Keikaku, 1937)4th Naval Armaments Supplement Programme (Maru 4 Keikaku, 1939)Temporal Naval Armaments Supplement Programme (Maru Rin Keikaku, 1940)Rapidly Naval Armaments Supplement Programme (Maru Kyū Keikaku, 1941)Additional Naval Armaments Supplement Programme (Maru Tui Keikaku, 1941)5th Naval Armaments Supplement Programme (Maru 5 Keikaku, 1941)6th Naval Armaments Supplement Programme (Maru 6 Keikaku, 1942)Wartime Naval Armaments Supplement Programme (Maru Sen Keikaku, 1944)
References
改マル5計画 (ja)
IJN Naval Armament Supplement Programs
