The Japanese military also used or made plans for non-aerial Japanese Special Attack Units, including those involving submarines, human torpedoes, speedboats and divers.
He was director of the Special Attack Division from 13 September 1944–10 August 1945, supervising work with the Kaiten human-guided torpedoes.
Ashes to Honey (ミツバチの羽音と地球の回転 Mitsubachi no haoto to chikyū no kaiten) (2010)
On March 25, 1869, in the Naval Battle of Miyako Bay, Kōtetsu successfully repulsed a surprise night attempt at boarding by the rebel Kaiten (spearheaded by survivors from the Shinsengumi), essentially thanks to the presence of a Gatling gun on board.
A second kaiten attack in January 1945 was foiled when the I-48 was sunk by the destroyer escort USS Conklin.
The large exhibit room on the first floor contains a Yokosuka D4Y bomber aircraft and Type 97 Chi-Ha recovered from Yap Island, along with a Kaiten-type torpedo and replicas of an Ohka Model 11 aircraft and Mutsu battleship.