Aichi S1A Denko (Bolt of Lightning) Technical Specifications
Service Year: 1946
Type: Twin-Engine Night-Fighter Aircraft Proposal
National Origin: Imperial Japan
Manufacturer(s): Aichi Kokuki KK - Imperial Japan
Production Total: 0
Structural (Crew Space, Dimensions and Weights)
Operating Crew (Typical): 2
Overall Length: 49.54 feet (15.1 meters)
Overall Width: 57.41 feet (17.50 meters)
Overall Height: 15.09 feet (4.60 meters)
Weight (Empty): 16,138 lb (7,320 kg)
Weight (MTOW): 25,375 lb (11,510 kg)
Installed Power and Standard Day Performance
Propulsion: 2 x Nakajima NK9K-S engines developing 2,000 horsepower each.
Maximum Speed: 360 mph (580 kph; 313 knots)
Maximum Range: 1,553 miles (2,500 km)
Service Ceiling: 39,370 feet (12,000 meters; 7.46 miles)
Armament / Mission Payload
2 x 30mm Type 5 cannons in fixed, forward-firing mountings on fuselage.
2 x 20mm Type 99 Model 1 cannons in fixed, forward-firing mountings on fuselage.
2 x 20mm Type 99 Model 2 cannons in dorsal-mounted turret.
Global Operators / Customers
Imperial Japan (cancelled)
Model Variants (Including Prototypes)
S1A "Denko" - Base Series Designation
S1A-1 - Assumed production model designation; none built.