Pedzisa mutsara unotevera: Panguva iyoyo, Mitsubishi yakanga ichishanda kusimudzira injini yakasiyana, Ha-42 (yakagadzirwa ne18-cylinder yeKasei), kugadzirwa kwayo kwaikosheswa kupfuura Ha-43, kuchinonotsa kupedzwa kwayo. Somugumisiro, Ha-45 akapinda basa rokutanga, kunyange akatambudzwa yakavimbika nyaya, izvo aizotambudzawo Ha-43. Ndege dzakawanda dzinovimbisa, dzakadai seKyushu J7W interceptor uye Mitsubishi pachake A7M "Reppu" murwi, vakanga vakaronga kushandisa Ha-43, asi pakupedzisira, ndege dzakadaro havana kuona basa pamberi
Kuzviisa pasi kweJapan, uyewo injini yacho pachayo.