design by Grumman...founded the Grumman Aircraft Engineering Corporation on Long Island, N.Y. His FF-1, which entered service with the U.S. Navy in 1933, was a two-seat biplane with retractable landing gear. With the F4F Wildcat, introduced in 1940, Grumman switched to monoplane construction. The F4F featured a folding wing for compact stowage and was the United States’ principal carrier-based fighter plane until...
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