© 1997 Joao Paulo
Julião Matsuura
Yokosuka B4Y
Allied Code Name: "Jean"
(Scanned from René J. Francillion "Japanese Aircraft of the Pacific War" - Putnam - 1979)
UNITS ALLOCATED
Aircraft carriers: Akagi, Hosho, Kaga, Ryujo
and Soryu;
13th and 15th Kokutais.
TECHNICAL DATA
Accommodation: Pilot in open cockpit and navigator and radio operator/gunner in enclosed rear cockpit.
Powerplant:
- One 600 hp Hiro Type 91 twelve-cylinder liquid-cooled engine rated at 750 hp for take-off, and 600 hp at 1,500 m, driving a two-blade propeller (first prototype).
- One 640 hp Nakajima Kotobuki 3 nine-cylinder air-cooled radial rated at 640 hp for take-off and 715 hp at 2,800 m, driving a two-blade propeller (second and third prototypes).
- One Nakajima Hikari 2 nine-cylinder air-cooled radial rated at 840 hp for take-off, and 700 hp at 1,200 m, driving a two-blade propeller (fourth and fifth prototypes and production aircraft).
- One flexible rear-firing 7.7 mm Type 92 machine-gun.
- External stores: one 800 kg torpedo, or 500 kg of bombs.
