. . "1969Z"^^ . "1959Z"^^ . "The Grumman Gulfstream I (company designation G-159) is a twin-turboprop business aircraft. It first flew on August 14, 1958. The aircraft has similar design characteristics to the Hawker Siddeley HS 748, especially the Rolls-Royce Dart powerplant."@en . "200"^^ . . .