Type C-class Midget Submarine
| Country | Japan |
| Displacement | 46 tons full |
| Length | 80 feet |
| Beam | 8 feet |
| Draft | 6 feet |
| Machinery | 40hp diesel, 600hp electric motor |
| Bunkerage | 500nm at 6 knots surfaced, 120nm at 4 knots submerged |
| Speed | 7 knots |
| Crew | 3 |
| Armament | 2x457mm muzzle-loaded torpedoes |
| Submerged Speed | 19 knots |
| Number Built | 15 |
Contributor: David Stubblebine
This article refers to the entire Type C-class; it is not about an individual vessel.
15 Ko-hyoteki Hei Gata Type C midgets submarines were made and none were used operationally, according to most sources. These were also improved versions of the Type A with a crew of 3, diesel generator, and an increased radius. Some sources say as many as 47 boats were built with 15 being deployed. Given that one Type C wreck was recovered from the waters around Guam, some manner of deployment seems apparent.
Sources: Wikipedia; Naval History & Heritage Command; Combined Fleet; Japan-101.
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