Aichi B7A Ryusei (Grace) Technical Specifications
Service Year: 1944
Type: Torpedo Bomber / Dive Bomber
National Origin: Imperial Japan
Manufacturer(s): Aichi Kokuki KK - Japan
Production Total: 114
Structural (Crew Space, Dimensions and Weights)
Operating Crew (Typical): 2
Overall Length: 37.73 feet (11.5 meters)
Overall Width: 47.24 feet (14.40 meters)
Overall Height: 13.35 feet (4.07 meters)
Weight (Empty): 8,378 lb (3,800 kg)
Weight (MTOW): 14,330 lb (6,500 kg)
Installed Power and Standard Day Performance
Propulsion: 1 x Nakajima NK9C Homare 12 series 18-cylinder radial engine developing 2,000 horsepower.
Maximum Speed: 351 mph (565 kph; 305 knots)
Maximum Range: 1,889 miles (3,040 km)
Service Ceiling: 36,909 feet (11,250 meters; 6.99 miles)
Rate-of-Climb: 1,890 feet-per-minute (576 m/min)
Armament / Mission Payload
2 x 20mm Type 99 cannons in wings
1 x 7,92mm Type 1 OR 13mm Type 2 machine gun in rear cockpit position.
Up to 1,765lbs of drop ordnance including 1 x "Long Lance" torpedo.
Global Operators / Customers
Model Variants (Including Prototypes)
B7A "Ryusei" - Base Series Designation
B7A1 - Prototype designation; nine examples completed.
B7A2 - IJN production bomber designation
B7A2X - Experimental mount fitted with Nakajima Jomare 23 series radial piston engine of 1,490 horsepower; single example of B7A2 model.
B7A3 - Proposed variant fitting Mitsubishi MK9A engine of 2,200 horsepower; not produced.