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Wikipedia / Wartime Naval Armaments Supplement Programme

The was the 1943-44 War Programme to fund further wartime armaments expansion plans of the Imperial Japanese Navy (IJN).

Background

Due to shifting wartime circumstances, the IJN focused on the construction of auxiliary and escort ships. As a result, the Wartime Naval Armaments Supplement Programme lacked any major warships capable of offensive operations.

Table of vessels funded under 1944-45 Estimates

Category

Class

Vessel number(s)

Completed

Converted

Cancelled

Military transporter 2nd class

No.101

#15011569 and 32 vessels

No.101 and 68 vessels

22 vessels were transferred to the Army.

32 vessels

Coast defence boat Type-A (steel) (:jp:海防艇)

No.1

#17011760

Minelayer

Kamishima

#18011809

Kamishima (#1801), Awashima (#1802)

#18031809

Minoo

#18211822

Minoo (#1821)

#1822

Coast defence boat Type-B (wood) (:jp:海防艇)

No.101

#18511870

Auxiliary subchaser

Aux. No.1

#20012100

Aux. No.151 (#2001) to Aux. No.250 (#2100)

Auxiliary patrol boat

Aux. No.1

#21212400

Aux. No.1 (#2121) and 26 vessels

#21252144, 21482150, 21552156, 21592173, 21762183, 21872203, 22072209, 22142229, 22322241, 22442252, 22612271, 22772282, 22872292, 23022310 and 23142400

Escort ship Type-C

No.1

#2401--2532

No.1 (#2401) and 55 vessels

#2446--2447, 2450--2452, 2455--2502, 2505--2506, 2515--2532 and 168 vessels

Escort ship Type-D

No.2

#2701--2843

No.2 (#2701) and 66 vessels

#2735, 2740, 2743--2750, 2754--2755, 2757, 2760--2761, 2764, 2768, 2770, 2773--2774, 2776, 2781--2792, 2794, 2803--2843 and 57 vessels

Military transporter 1st class

No.1

#2901--2922 and 12 vessels

No.1 (#2901) and 20 vessels

12 vessels

Submarine Type-D

I-361

#2961

I-372 (#2961)

I-373

#2962--2967

I-373 (#2962)

#2963--2967

S60

#2968--2971

#2968--2971

Submarine Type-E

S54-2

#2981--3024 and 48 boats

#2981--3024 and 48 boats

Patrol torpedo boat

PT-151, PT-201, PT-220, PT-235, PT-241, PT-301, PT-327, PT-411, PT-468, PT-469, PT-474, PT-491, PT-538, H-2, H-10, H-27, H-74 and H-101

1540 vessels

approx. 860 vessels

unknown

High-speed submarine (large)

I-201

#4501--4506

I-201 (#4501), I-202 (#4502), I-203 (#4503)

S56B

#4507--4523

#4509--4523

Transport submarine (small)

Ha-101

#4601--4612

Ha-101 (#4601),Ha-102 (#4602),Ha-103 (#4603),Ha-104 (#4604),Ha-105 (#4605),Ha-106 (#4606),Ha-107 (#4607),Ha-108 (#4608),Ha-109 (#4609), Ha-111 (#4611)

#4610 and #4612

Escort ship Type-B

Ukuru

#47014721

Inagi (#4701),Habushi (#4702),Ojika (#4703),Kanawa (#4704),Uku (#4705),Takane (#4707),Kuga (#4709),Shiga (#4711),Iō (#4712)

#4706, #4708, #4710 and #4713#4721

Destroyer Type-D

Matsu

#4801 - 4832

Nire (#4809), Nashi (#4810), Sii (#4811), Enoki (#4812), Odake (#4814), Hatsuume (#4815)

#48014808, 4813 and 48164832

Fleet oiler

Hario

#49014904

Hario (#4901)

#49024904

High-speed submarine (small)

Ha-201

#49114989

Ha-201 (#4911),Ha-202 (#4912),Ha-203 (#4913),Ha-204 (#4914),Ha-205 (#4915),Ha-207 (#4917),Ha-208 (#4918),Ha-209 (#4919),Ha-210 (#4920),Ha-216 (#4926)

#4916,#4921 - #4925,#4927 - #4989(of which 11 were launched and 16 more laid down; 42 cancelled before laying down{

Table of vessels funded under 1945-46 Estimates

This programme was projected only, and the vessels were never ordered.

Category

Class

Quantity planned

High-speed submarine (large)

I-201

76 vessels

Submarine Type-D

I-373

140 vessels

Transport submarine (small)

Ha-101

88 vessels

High-speed submarine (small)

Ha-201

10 vessels

Escort ship Type-C

No.1

168 vessels

Escort ship Type-D

No.2

60 vessels

References

See also