Aichi S1A Denko


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  NIGHT FIGHTERVirtual Aircraft Museum / Japan / Aichi  

Aichi S1A Denko

Never flown. Both prototypes destroyed during bomb attacks.

Aichi S1A Denko

 ENGINE2 x Nakajima NK9K-S "Homare-22", 1500kW
  Take-off weight10180-11510 kg22443 - 25375 lb
  Empty weight7320 kg16138 lb
  Wingspan17.5 m57 ft 5 in
  Length15.1 m50 ft 6 in
  Height4.61 m15 ft 1 in
  Wing area47.0 m2505.90 sq ft
  Max. speed580 km/h360 mph
  Cruise speed440 km/h273 mph
  Ceiling12000 m39350 ft
  Range w/max.fuel1670 km1038 miles
  Range w/max payload2500 km1553 miles

Aichi S1A DenkoA three-view drawing (752 x 1015)

Andres Erdos, e-mail, 25.08.2012 23:26

The Aichi S1A Denko (Bolt of Light) was a Japanese night fighter, intended to replace the Nakajima J1N1-S Gekkou (Allied code name Irving). It was to be, like the Gekkou, equipped with radar to counter the B-29 air raids over the Japan. Development time increased while trying to overcome design shortcomings, such as the insufficient power of the Navy's requested Nakajima Homare engines, resulting in no aircraft being completed before the war ended.
Two prototypes were constructed in 1945, but the project was cancelled after the incomplete prototypes were destroyed during two separate bomb attacks when they are about 70% (1st prototype) and 90% (2nd prototype) complete.
General characteristics
Crew: 2
Length: 49 ft 6.5 in (15.100 m)
Wingspan: 57 ft 5 in (17.50 m)
Height: 15 ft 1.5 in (4.610 m)
Wing area: 505.902 sq ft (46.9998 m2)
Empty weight: 16,138 lb (7,320 kg)
Gross weight: 22,443 lb (10,180 kg)
Max takeoff weight: 25,375 lb (11,510 kg)
Powerplant: 2 Nakajima NK9K-S , 2,000 hp (1,500 kW) each at take-off
Propellers: 4-bladed
Maximum speed: 360 mph (579 km /h; 313 kn)
Cruise speed: 273 mph (237 kn; 439 km /h)
Range: 1,054 mi (916 nmi; 1,696 km)
Ferry range: 1,553 mi (1,350 nmi; 2,499 km)
Service ceiling: 39,370 ft (12,000 m)
Wing loading: 44.4 lb /sq ft (217 kg /m)
2 fuselage-mounted forward-firing 30mm Type 5 cannons
2 fuselage-mounted forward-firing 20mm Type 99 model 1 cannons
2 dorsal turret-mounted 20mm Type 99 model 2 cannons


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