Aichi S1A1 Denko (bolt of light) heavy fighter. Intended to replace the J1N1-S Gekko night fighter, only two prototypes were built before being destroyed by the US Navy during the closing days of the Pacific War, having never flown.
Yokosuka D3Y1-K Myojo (Venus) two-seater dive bomber/trainer, derived from the Aichi D3A2-K. Two variants were made, a production D3Y1-K trainer, and a prototype D3Y2-K kamikaze aircraft with a 800kg bomb under the fuselage and jettison-able landing gear.