The Val was to be powered by the 529 kW (710 hp) Nakajima Hikari 1 nine-cylinder radial engine and could reach a maximum speed of 239 mph. In June 1942, an improved version of the D3A powered by a 969 kW (1,300 hp) Kinsei 54 was tested as the Model 12. Weight 5,309 pounds empty, its maximum take-off weight was 8,047 pounds. Armament consisted of three 7.7 mm machine-guns; two Type 97 .303 forward firing and one Type 92 .303 rear firing, three bombs; two 132-pound bombs and one 551-pound bomb.
Over 1,500 D3As were built but by the end of World War II, many of the remaining aircraft were relegated to kamikaze and training roles