The was the 1943-44 War Programme to fund further wartime armaments expansion plans of the
Imperial Japanese Navy
The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was the navy of the Empire of Japan from 1868 to 1945, Potsdam Declaration, when it was dissolved followin ...
(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
{, class="wikitable" width="90%"
, width="12%" , Category
, width="8%" , Class
, width="8%" , Vessel number(s)
, width="20%" , Completed
, width="15%" , Converted
, width="12%" , Cancelled
, -
, Military transporter 2nd class
, ''
No.101''
, #1501–1569 and 32 vessels
, ''
No.101'' and 68 vessels
, 22 vessels were transferred to the
Army
An army, ground force or land force is an armed force that fights primarily on land. In the broadest sense, it is the land-based military branch, service branch or armed service of a nation or country. It may also include aviation assets by ...
.
, 32 vessels
, -
, Coast defence boat Type-A (steel) (
:jp:海防艇)
, ''
No.1''
, #1701–1760
,
,
,
, -
, rowspan="2", Minelayer
, ''
Kamishima''
, #1801–1809
, ''
Kamishima'' (#1801), ''
Awashima'' (#1802)
,
, #1803–1809
, -
, ''
Minoo''
, #1821–1822
, ''Minoo'' (#1821)
,
, #1822
, -
, Coast defence boat Type-B (wood) (
:jp:海防艇)
, ''
No.101''
, #1851–1870
,
,
,
, -
, Auxiliary subchaser
, ''
Aux. No.1''
, #2001–2100
, ''
Aux. No.151'' (#2001) to ''
Aux. No.250'' (#2100)
,
,
, -
, Auxiliary patrol boat
, ''
Aux. No.1''
, #2121–2400
, ''
Aux. No.1'' (#2121) and 26 vessels
,
, #2125–2144, 2148–2150, 2155–2156, 2159–2173, 2176–2183, 2187–2203, 2207–2209, 2214–2229, 2232–2241, 2244–2252, 2261–2271, 2277–2282, 2287–2292, 2302–2310 and 2314–2400
, -
, 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
, -
, rowspan="3", 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
, -
, rowspan="2", 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''
, #4701–4721
, ''
Inagi
270px, Inagi City Hall
is a city located in the western portion of the Tokyo Metropolis, Japan. , the city had an estimated population of 92,585 in 41,592 households, and a population density of 5200 persons per km². The total area of the city ...
'' (#4701),
''
Habushi'' (#4702),
''
Ojika'' (#4703),
''
Kanawa'' (#4704),
''
Uku'' (#4705),
''
Takane'' (#4707),
''
Kuga'' (#4709),
''
Shiga
is a landlocked prefecture of Japan in the Kansai region of Honshu. Shiga Prefecture has a population of 1,398,972 as of 1 February 2025 and has a geographic area of . Shiga Prefecture borders Fukui Prefecture to the north, Gifu Prefecture to t ...
'' (#4711),
''
Iō'' (#4712)
,
, #4706, #4708, #4710 and #4713–#4721
, -
, Destroyer Type-D
, ''
Matsu''
, #4801 - 4832
, ''
Nire'' (#4809), ''
Nashi'' (#4810), ''
Sii'' (#4811), ''
Enoki
''Flammulina filiformis'', commonly called enoki mushroom, is a species of edible agaric (gilled mushroom) in the family Physalacriaceae. It is widely cultivated in East Asia, and well known for its role in Japanese and Chinese cuisine. Unti ...
'' (#4812), ''
Odake'' (#4814), ''
Hatsuume'' (#4815)
,
, #4801–4808, 4813 and 4816–4832
, -
, Fleet oiler
, ''
Hario''
, #4901–4904
, ''Hario'' (#4901)
,
, #4902–4904
, -
, High-speed submarine (small)
, ''
Ha-201''
, #4911–4989
, ''
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.
{, class="wikitable" width="90%"
, width="12%" , Category
, width="8%" , Class
, width="8%" , 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
*''Rekishi Gunzō series'',
Gakken
is a Japanese publishing company founded in 1947 by Hideto Furuoka, which also produces educational toys. Their annual sales are reported at ¥ 90 billion ($789 million US).
Gakken publishes educational books and magazines and produces othe ...
(Japan)
*''The Maru Special series'',
Ushio Shobō
*Daiji Katagiri, ''Ship Name Chronicles of the Imperial Japanese Navy
Combined Fleet
The was the main sea-going component of the Imperial Japanese Navy. Until 1933, the Combined Fleet was not a permanent organization, but a temporary force formed for the duration of a conflict or major naval maneuvers from various units norm ...
'', Kōjinsha (Japan), June 1988,
* (SNAJ), ''Histories of shipbuilding in
Shōwa period
Shōwa most commonly refers to:
* Hirohito (1901–1989), the 124th Emperor of Japan, known posthumously as Emperor Shōwa
** Shōwa era (昭和), the era of Hirohito from 1926 to 1989
* Showa Corporation, a Japanese suspension and shock manufactu ...
(1)'', (Japan), September 1977
*
大日本帝国海軍艦艇一覧 (ja)
See also
*
1st Naval Armaments Supplement Programme
The , otherwise known as the "Circle One" plan was the first of four expansion plans of the Imperial Japanese Navy between 1930 and the start of World War II.
Background
The London Naval Treaty placed severe restrictions on Japan's naval capabil ...
(Maru 1 Keikaku, 1931)
*
2nd Naval Armaments Supplement Programme (Maru 2 Keikaku, 1934)
*
3rd Naval Armaments Supplement Programme
The otherwise known as the "Circle Three" Plan was the third of four expansion plans of the Imperial Japanese Navy between 1930 and the start of World War II.
Background
The London Naval Treaty placed severe restrictions on Japan's naval capabil ...
(Maru 3 Keikaku, 1937)
*
4th Naval Armaments Supplement Programme (Maru 4 Keikaku, 1939)
*
Temporal Naval Armaments Supplement Programme The is one of the armaments expansion plan of the Imperial Japanese Navy (IJN).
Background
In October 1940, the IJN schemed building of the submarines and auxiliary vessels because there was a shortage of them.
Table of vessels
See also
*1st Na ...
(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)
*
Modified 5th Naval Armaments Supplement Programme
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 ...
(Kai-Maru 5 Keikaku, 1942)
{{IJN Naval Armnament Supplement Programs
Naval Armaments Supplement Programme
Naval Armaments Supplement Programme