via Niagara Aerospace Museum
Curtiss JN-4HG data plate.
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Bell P-39 Airacobra
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In 1938 the Bell P-39 Airacobra prototype made its first flight. via http://www.facebook.com/pages/p/87126225996
BellXV-3 hovering
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Bell XV-3
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Bell XFL-1
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Bell Aircraft XFL-1 Airabonita, US Navy version of the P-39 parked on the old Buffalo Aeronautical Corporation ramp in 1940.
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Bell XFM-1 Airacuda Cockpit 1939
via Niagara Aerospace Museum