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| - The Vought XF5U "Flying Flapjack" was an experimental U.S. Navy fighter aircraft designed by Charles H. Zimmerman during World War II. This unorthodox design consisted of a flat, somewhat disc-shaped body (hence its name) serving as the lifting surface.[1] Two piston engines buried in the body drove propellers located on the leading edge at the wingtips.A developed version of the original V-173 prototype , the XF5U-1 was a larger aircraft. Of all-metal construction, it was almost five times heavier, with two 1,600 hp (1,193 kW) Pratt & Whitney R-2000 radial engines. The configuration was designed to create a low aspect ratio aircraft with low takeoff and landing speeds but high top speed.
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| abstract
| - The Vought XF5U "Flying Flapjack" was an experimental U.S. Navy fighter aircraft designed by Charles H. Zimmerman during World War II. This unorthodox design consisted of a flat, somewhat disc-shaped body (hence its name) serving as the lifting surface.[1] Two piston engines buried in the body drove propellers located on the leading edge at the wingtips.A developed version of the original V-173 prototype , the XF5U-1 was a larger aircraft. Of all-metal construction, it was almost five times heavier, with two 1,600 hp (1,193 kW) Pratt & Whitney R-2000 radial engines. The configuration was designed to create a low aspect ratio aircraft with low takeoff and landing speeds but high top speed.
* Crew: One, pilot
* Length: 28 ft 7 in (8.73 m)
* Wingspan: 32 ft 6 in (9.91 m)
* Height: 14 ft 9 in (4.50 m)
* Wing area: 475 ft² (44.2 m²)
* Empty weight: 13,107 lb (5,958 kg)
* Loaded weight: 16,722 lb (7,600 kg)
* Max. takeoff weight: 18,772 lb (8,533 kg)
* Powerplant: 2 × Pratt & Whitney R-2000-7 radial engine, 1,350 hp (1,007 kW) each
* Maximum speed: 477 knots / 550 mph at 28,000 ft (estimated)[8] (765 km/h at 8,534 meters)
* Range: 1,064 miles (1,703 km)
* Service ceiling: 34,492 ft (10,516 m)
* Rate of climb: 3,000 ft/min (914 m/min)
* Wing loading: 35 lb/ft² (172 kg/m²)
* Power/mass: 0.16 hp/lb (0.27 kW/kg)
* 6 × .50 machine guns or 4 × 20 mm cannon
* 2 × 1000 lb. bombs
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