Nakajima B5N2 (Kate) Technical Specifications
Service Year: 1941
Type: Carrier-Borne Torpedo Bomber
National Origin: Imperial Japan
Manufacturer(s): Nakajima - Imperial Japan
Production Total: 1,149
Structural (Crew Space, Dimensions and Weights)
Operating Crew (Typical): 3
Overall Length: 33.79 feet (10.3 meters)
Overall Width: 50.92 feet (15.52 meters)
Overall Height: 12.14 feet (3.70 meters)
Weight (Empty): 5,024 lb (2,279 kg)
Weight (MTOW): 9,039 lb (4,100 kg)
Installed Power and Standard Day Performance
Propulsion: 1 x Nakajima NK1B Sakae 11 radial piston engine developing 1,000 horsepower.
Maximum Speed: 235 mph (378 kph; 204 knots)
Maximum Range: 1,237 miles (1,990 km)
Service Ceiling: 27,100 feet (8,260 meters; 5.13 miles)
Rate-of-Climb: 1,230 feet-per-minute (375 m/min)
Armament / Mission Payload
1 x 7.7mm Type 92 machine gun in trainable position at rear cockpit.
2 x 7.7mm Type 97 machine guns in wings (some B5N1 models).
1 x 1,760 lb torpedo OR 2 x 550lb bombs with 6 x 295lb bombs.
Global Operators / Customers
Model Variants (Including Prototypes)
B5N - Base Model Series Designation
Type K - Prototype Designation
B5N1 - Initial Production Model
B5N1-K - B5N1 aircraft converted for the training role.
B5N2 - Improved B5N1 with Sakae 11 radial engine and revised engine cowling.