The J8M1 Shusui was based on the Messerschmitt Me 163B rocket fighter.

The Ki-109 was evolved from the Ki-67 Hiryu bomber as a heavy interceptor mounting a 75-mm cannon.

The Mitsubishi F-1 close support fighter was derived from the T-2 trainer.

The Ki-83 long-range escort fighter continued the Ki-46 configuration.