The YO-51 Dragonfly of 1940 was observation monoplane built for the USAAC.
Engine: 1 x 440hp Pratt and Whitney R-985-21 Wasp Junior
Max take-off weight: 1908 kg / 4206 lb
Wingspan: 15.85 m / 52 ft 0 in
Length: 10.51 m / 35 ft 6 in
Max. speed: 208 km/h / 129 mph
Cruise speed: 172 km/h / 107 mph
Crew: 2
All Aero 