The Boeing Y1B-20 (Boeing 316) was designed as an improvement on the Boeing XB-15 (Y1- indicates a funding source outside normal fiscal year procurement.) It was slightly larger than its predecessor, and was intended to use much more powerful engines. It was presented to the Army in early 1938, and two orders were placed soon after. The order was reversed before construction began. Despite their cancellation, the XB-15 and Y1B-20 laid the groundwork for the Boeing B-29 Superfortress.
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dbkwik:military/pr...iPageUsesTemplate |
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max takeoff weight alt |
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loaded weight main |
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Guns |
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number of props |
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type of props |
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length alt |
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span main |
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power/mass alt |
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Status |
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cruise speed main |
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cruise speed alt |
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height alt |
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primary user | |
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range alt |
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length main |
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power alt |
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area main |
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power main |
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bombs |
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height main |
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span alt |
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range main |
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Manufacturer |
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max speed main |
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engine (prop) |
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power/mass main |
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empty weight main |
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loaded weight alt |
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area alt |
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First Flight |
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max speed alt |
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jet or prop? |
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empty weight alt |
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plane or copter? |
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max takeoff weight main |
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Crew |
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Number Built |
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abstract |
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is Developed Into of |