The Type A Ko-hyoteki class was a class of Japanese midget submarines (Kō-hyōteki) used during World War II. Fifty were built. They were also called "Tubes" (筒, Tou) or "Target" (的, Teki, abbreviation of 'Hyōteki') and other nicknames. The first two, No.1 and No.2, were used only in testing. They did not have conning towers, which were added to the later boats for stability under water. The submarines were each armed with two 450 mm (17.7 in.) torpedoes in muzzle-loading tubes one above the other at the bow. In the Pearl Harbor attack, the specially designed Type 97 torpedo was used, with a 772 pounds (350 kg) warhead and a range of 3.4 miles (5.5 km) at 44 knots (81 km/h). There was also a demolition charge which has been suggested was large enough to enable the submarine to be used as a suicide weapon, but there is no evidence that it was ever used as one. Each submarine had a crew of two men. A junior officer conned the boat while a petty officer manipulated valves and moved ballast to control trim and diving.
These files come to us from Randy Sanders, and this is an excellent depiction of these unique boats. Parts are included to model with the torpedo shutters closed, or else with open tubes. Files are also included to model the torpedoes themselves.
Max part z-axis height is 130mm, meaning customers with larger printers could combine parts into one to reduce the number.
Completed hull length in 1/12 scale: 1500mm (59")Completed beam: 117mm (4.6")
Completed height: 248mm (9.76")
The Nautilus Drydocks recommends printing with 100% infill with PETG, ASA or ABS material.
Japanese Kokyoteki Submarine 3D STL Files in 1:12 Scale
Don’t be a jerk!
By purchasing these files for any purpose, you acknowledge that you are completely allowed to use them for the creation of your own model. You can modify these files as you see fit for this purpose.
Distribution, including making the files accessible to any individual or company other than the original buyer, for any reason, without the express written consent of the Nautilus Drydocks, constitutes a breach of the terms and any and all legal remedies may be employed to compensate for damages. You’ve been warned!
Basically, just realize that someone put a lot of time and energy into making this product, and sharing them divulges me of an income that is badly needed to keep the Nautilus Drydocks alive and healthy.
Have fun with them. Mark, chop, scale, and modify however you like. Just don’t let them out of your possession. Thanks for your cooperation and understanding.
Bob