2nd Naval Armaments Supplement Programme

The 2nd Naval Armaments Supplement Programme (マル2計画, 第二次補充計画, Maru 2 Keikaku, Dai-Ni-Ji Hojū Keikaku) is one of the armaments expansion plan of the Imperial Japanese Navy (IJN).

Background

In 1934, the IJN drafted the second plan to utilize a rule in London Naval Treaty to the maximum. The IJN made 48 warships and 8 Naval Air Groups by 0.5 billion JPY in a plan.

Table of vessels

Category	Class	Quantity of plan	Completed	Converted	Cancelled
Light cruiser	Tone	2	Tone, Chikuma
Aircraft carrier	Sōryū	2	Sōryū	1 vessel was converted to the Hiryū class
	Hiryū		Hiryū
Destroyer	Shiratsuyu	4	Umikaze, Yamakaze, Kawakaze, Suzukaze
	Asashio	10	Asashio, Ōshio, Michishio, Arashio, Yamagumo, Natsugumo, Asagumo, Minegumo, Arare, Kasumi
Torpedo boat	Ōtori	16	Ōtori, Hiyodori, Hayabusa, Kasasagi, Kiji, Kari, Sagi, Hato		8 vessels were cancelled.
Cruiser submarine	I-7	2	I-7, I-8
Large sized submarine	I-74	2	I-74, I-75
Seaplane tender Type-A (10,000 tons class)	Chitose	2	Chitose, Chiyoda
Seaplane tender Type-B (9,000 tons class)	Mizuho	1	Mizuho
Subchaser	PC-3	1	PC-3
Subchaser (Small: diesel)	No.51	2	No.51, No.52
Subchaser (Small: turbine)	No.53	1	No.53
Fleet oiler	Tsurugizaki	2	Tsurugizaki, Zuihō	1 vessel was converted to submarine tender 1 vessel was converted to aircraft carrier
Repair ship	Akashi	1	Akashi

References

マル2計画 (ja)

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)
• Modified 5th Naval Armaments Supplement Programme (Kai-Maru 5 Keikaku, 1942)
• Wartime Naval Armaments Supplement Programme (Maru Sen Keikaku, 1944)