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Type A Kouhyouteki

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Type A Target
No.41 甲標的 甲型
Torpedo.png Midget Submarine
Effects: Torpedo+12
Scrap value: Ammo 7 Steel 7 (Buildable)

Equipment Card Type A Kouhyouteki.png

Equipment Character Type A Kouhyouteki.png

Equipment Item Type A Kouhyouteki.png

Equipment Full Type A Kouhyouteki.png

Refittable Ship Types
Coastal Defense Ship Destroyer
Light Cruiser Torpedo Cruiser
Heavy Cruiser Training Cruiser
Aviation Cruiser Fast Battleship
Battleship Aviation Battleship
Light Carrier Standard Aircraft Carrier
Armored Carrier Seaplane Tender
Submarine Aircraft Carrying Submarine
Submarine Tender Fleet Oiler
Repair Ship Amphibious Assault Ship



This is a Japanese-made, distinctive "Midget Submarine."
This can be utilized by light cruisers, seaplane tenders remodeled as midget submarine tenders, and submarines.
Equipped with two torpedoes, this is a unique weapon that can approach and attack enemy ships in order to support open-sea warfare.


Midget SubmarineMinisub Midget Submarine allow any ship equipping one to perform an Opening Torpedo Salvo. Their main stat is the "torpedo" Torpedo Attack stat, being used to calculate damages in all torpedo phases.


Not to be confused with other crafts of this family (see here).

How To Obtain


Stock equipment of: Chitose AChitose A (x2), Chiyoda AChiyoda A (x2), Mizuho KaiMizuho Kai, Nisshin ANisshin A (x2), Nisshin KaiNisshin Kai, NisshinNisshin


Used to improve: Type A KouhyoutekiType A Kouhyouteki

Updates History

  • 2013-04-23: Implemented with initial game release
  • 2013-08-02: Ability to enable opening torpedo added
  • 2018-08-17: Name changed from Kouhyouteki (甲標的) to Type A Kouhyouteki (甲標的 甲型)
  • 2020-09-17: Became improvable and upgradeable to Type C KouhyoutekiType C Kouhyouteki


Torpedo.png Type A Kouhyouteki

Improvement Conversion
★ Improvement
0~5 6~9
Equipment Card Type C Kouhyouteki.png
Type C Kouhyouteki
Development material Consumed 3/3 3/6 9/18
Improvement material Consumed 1/2 2/4 4/8
Equipment Card Type A Kouhyouteki.png Equipment Card Type A Kouhyouteki.png Equipment Card Type A Kouhyouteki.pngx2
- Item Icon New Model Armament Material.pngx2 Item Icon Action Report.png
Resources Fuel30 Ammunition50 Steel40 Bauxite20
Ship Helper Conversion
Ship Banner Chiyoda A.png
Chiyoda A
Equipment Card Type C Kouhyouteki.png
Type C Kouhyouteki
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Nisshin.png
Mon Tue Wed Thu Fri Sat Sun
Chiyoda Kou/Kai/Ni does not work
Improvement Improved effects
Midget SubmarineMinisub 1★ 2★ 3★ 4★ 5★ 6★ 7★ 8★ 9★ Max★
Night Battle Power 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16


The Type A Ko-hyoteki, which means "Target 'A', Type 'A'," was given its name in order to disguise its true purpose: if its design was discovered prematurely by Japan's foes, the Japanese Navy could insist that the vessels were practice battle targets. They were also called "Tubes" (筒 Tou) or "Target" (的 Teki, abbreviation of 'Hyōteki') and other slang names.

Five of these participated in the attack on Pearl Harbor, with two actually making it into the harbor. They also participated in the attacks at Sydney Harbor, as well as in Madagascar.

See Also

Type A Ko-hyoteki-class submarine