Modified 5th Naval Armaments Supplement Programme

The {{nihongo|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

class="wikitable" width="90%"

| width="12%" | Category

| width="10%" | Class

| width="10%" | Vessel number(s)

| width="25%" | Completed

| width="16%" | Converted

| width="15%" | Cancelled

rowspan="2"|Aircraft carrier

| Unryū

| #5001–5015

| Amagi (#5001), Katsuragi (#5003)

| #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

rowspan="2"|Cruiser submarine Type-A

| I-13

| #5091–5093

| I-14 (#5091)

|

S48

| #5094–5096

|

| #5094–5096

rowspan="2"|Cruiser submarine Type-B

| I-54

| #5101–5114

|

| #5101–5114

S49A

| #5115–5132

|

| #5115–5132

rowspan="2"|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 (#5231), I-401 (#5232), I-402 (#5233)

|

| #5234–5248

rowspan="2"|Escort ship Type-B

| Ukuru

| #5251–5284

| Yaku (#5251), Chikubu (#5253), Kōzu (#5255), Hodaka (#5256), Ikara (#5258), Ikuno (#5260)

| #5252, 5254, 5257, 5259 and 5263–5266 were converted to the Hiburi class

| #5261–#5262, 5267–5284

Hiburi

|

| Kume (#5252), Ikuna (#5254), Shisaka (#5257), Sakito (#5259), Mokuto (#5263), Habuto (#5264)

|

| #5265–5266

Minesweeper

| No.19

| #5301–5336

|

| #5301–5336

Subchaser

| No.13

| #5341–5370

| No.60 (#5341), No.61 (#5342), No.63 (#5344)

|

| #5343, 5345–5370

rowspan="2"|Fleet oiler

| Kazahaya

| #5381–5387

|

| #5381–5387

J34

| #5388–5395

|

| #5388–5395

rowspan="3"|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 (#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-D

| Matsu

| #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)

|

| #5491, 5494–5495, 5501, 5503–5504, 5506–5507, 5509–5510, 5512–5513, 5515–5516, 5518–5519

References

改マル5計画 (ja)

Naval Armaments Supplement Programme

Modified 5th Naval Armaments Supplement Programme

Background

Table of vessels

See also

References