N51706 (previously registered as NC51706) Langley Aviation Corporation Model 2-4-90 twin-engine utility aircraft. First flown in 1940 and originally to the USN as XNL-1 (39056) but sold as war surplus due to a lack of materials for production. This aircraft was landing in Oklahoma in 1965 and after touch down damaged the fuselage beyond economical repair; its remains, along with parts of a Stinson Voyager, were rebuilt into an experimental aircraft and renamed Pierce Arrow [N6622A] and registered in 1966. Scanned from an original Howard Levy (New York) from my collection, actual date not known