Grumman Boats Serial Number5/23/2023 In its original bid to serve as the successor to the Leoning Air Yacht, the Goose was designed with certain key features that would set it apart and earn it a spot in history. A mere 5 weeks later, the first batch of twelve G-21 Goose planes were ordered for their eager customers. The finished product was a modern delight whose first test flight was completed in the early summer of 1937. It is Grumman’s first single-wing aircraft, first twin-engine aircraft, and first commercial airliner. The Goose represents several important firsts for the Grumman design team. Grumman accepted the challenge and collaborated with designer William Schwendler and hydrodynamicist Ralston Stalb to create the new design.įor the original client base of commuting businessmen, handling characteristics were the most important focus, and that is reflected in the design. Their ideal aircraft would still be an amphibious utility biplane but with improved flight characteristics, handling characteristics, and visual appeal. These men were looking for someone to design and build a replacement plane for the unwieldly Leoning Air Yacht they were currently using as a commuter aircraft between home and work. In 1936, Leroy Grumman of Grumman Aircraft Engineering Corporation was approached by a group of ten wealthy New York aviator-businessmen.
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