Seversky P-35

The Seversky P-35 was a fighter aircraft built in the United States by the Seversky Aircraft Company in the late 1930s. A contemporary of the Hawker Hurricane and Messerschmitt Bf 109, the P-35 was the first single-seat fighter in U.S. Army Air Corps to feature all-metal construction, retractable landing gear and an enclosed cockpit.

Read more about Seversky P-35:  Design and Development, Two-seat Versions - 2PA and A8V, Operational History, Variants, Operators, Survivors, Specifications (P-35A)