BOEING B-17 HEAVY BOMBER MAKES MAIDEN FLIGHT
Seattle, Washington State • July 28, 1935 On this date in 1935 a prototype 4‑engine bomber took off from Seattle, Washington’s Boeing Field on its first flight. The plane, known simply as Model 299 among Boeing employees, bristled with machine-gun mounts in its nose, sides, top, and tail. Dubbed the “Flying Fortress,” allegedly by a…

