Boeing Model 299 Bomber Prototype

In August 1934, the US Army Air Corps issued a request for a multi-engine bomber aircraft that could carry a useful bomb load at a cruising speed of 220 MPH at an altitude of 10,000 feet for ten hours, top speed to be 250 MPH. The Boeing company design looked something between a scaled-down version of the XB-15, a very large bomber prototype then in design, and a scaled-up, four-engine version of the Model 247.
The Model 299 was publicly rolled out at Boeing field in Seattle on 17 July 1935. First flight was on 28 July, and on 20 August 1935 the aircraft flew from Seattle to Wright Field near Dayton for Air Corps evaluation. A crash occurred on October 30 1935 destroying the 299 (A lock on the flight controls was left engaged and the aircraft stalled on takeoff) and some felt that the aircraft was too much for a pilot to handle but the Air Corps saw the obvious merits of the design and on January 17th 1936 the Air Corps ordered 13 flying additional aircraft and 1 static airframe for testing, these were designated
Y1B-17 / Y1B-17A.

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The interior of the cockpit w/ the forward control panel.
July 26, 1935
A look forward in a naked  navigator/bombardier compartment Radio operator's compartment looking forward. The bomb bay is just through that door. Interior view, left waist gunner position
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Exterior view of the nose glazing The early bombsight aperture Exterior view port side Exterior view, right waist gunner's position
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Notice the landing gear has  double sided struts. In flight  In flames After the fire is out

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