--The `Shiden Kai` is an aircraft developed from the surface fighter` strong wind`.
――The land fighter `Shiden`, which is equipped with a small and powerful Nakajima` Homare` engine with wheels attached instead of a strong wind float, went into mass production in 1943 and was officially adopted in October 1945. Since there were many unfinished parts as a land fighter, the fuselage was redesigned, the position of the main wing was changed from the middle wing of Shiden to the low wing, and the full-scale land locality that improved the perfection of the automatic air battle flap. The fighter `Shiden Kai` (N1K2-J) was prototyped and officially adopted in January 1945.
――The area of the vertical stabilizer was smaller in the late production machine of Shiden Kai (N1K2-J) than in the early production machine.
――The famous unit that systematically equipped and operated Shiden Kai is the 343rd Naval Air Corps, which launched the F6F, F4U, and SB2C US Navy carrier-based aircraft that attacked over Shikoku Matsuyama on March 19, 1945. 54 Kais greeted with 7 Shidens in the air, and 52 were shot down, demonstrating the excellence of Shiden Kais.
