Yokosuka D3Y

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D3Y Myojo
Role Dive bomber
Manufacturer Yokosuka
First flight 1945
Status Cancelled
Primary user IJN Navy Air Service (Intended)
Produced 1945
Number built 2 Prototypes
3 Production
Developed from Aichi D3A

The Yokosuka Myojo (ビーナス "Venus"?) was a Japanese two-seat dive bomber/trainer designed and built by the Yokosuka Naval Air Technical Arsenal. Derived from the Aichi D3A, it was made from nearly entirely of wood due to shortage of materials. Only five aircraft were built.

Design and development[edit]

The D3Y was a two-seat bomber trainer constructed of wood, so as not to use more valuable materials. It was based on the successful Aichi D3A, with design starting in late 1942. Like the D3A, it was a two-seat low-winged monoplane with a fixed tailwheel undercarriage. To allow construction by unskilled workers, the elliptical wing and rounded tail of the D3A was replaced by straight tapered alternatives, while the fuselage was lengthened to improve stability.[1] Two prototypes were built during 1944, these proved heavier than expected. Three production aircraft, which were redesigned to save weight, were completed for the Imperial Japanese Navy Air Service before the end of the war, designated the Navy Type 99 Bomber Trainer Myojo Model 22.[2]


Two seat wooden dive-bomber trainer. Powered by 1,300 hp (970 kW) Mitsubishi Kinsei 54 radial engine.
Single seat suicide attack derivative of D3Y1 with jettisonable undercarriage, two 20 mm cannon in engine cowling and one 800 kg (1,760 lb) bomb. Later redesignated D5Y1 Myojo Kai. Prototype not complete.[3]



Specifications (D3Y1-K)[edit]

General characteristics



See also[edit]

Related lists


  1. ^ Francillon 1979, p. 469.
  2. ^ Francillon 1979, pp. 469–470.
  3. ^ Francillon 1979, pp. 470–471.
  4. ^ Climb to 6,000 m (19,700 ft): 13 min 23 s