Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the Hughes XR-11 / XF-11 Long-Range Photographic Reconnaissance Aircraft Prototype.
2 x Pratt & Whitney R-4360-31 radial piston engines developing 3,000 horsepower each.
Propulsion
447 mph
720 kph | 389 kts
Max Speed
44,012 ft
13,415 m | 8 miles
Service Ceiling
4,971 miles
8,000 km | 4,320 nm
Operational Range