The P-26A was the Army Air Corps’ first service fighter monoplane, the P-26B and P-26C being externally similar.

The last production Boeing fighter biplane, the F4B-4 which was delivered to the US Navy from mid-1932.

The last production Boeing fighter biplane, the F4B-4 which was delivered to the US Navy from mid-1932.

The photograph depict the XF7B-1 with wheel fairings removed

The YP-29, the second Model 264 built, with large glasshouse-cockpit canopy. Although similar to the XF7B-1. the YP-29 possessed smaller overall dimensions.

The photograph illustrates the first Model 264 after conversion as the YP-29A.

The general arrangement drawing depict the XF7B-1 with wheel fairings removed and with two different long-chord cowlings, the bottom sideview illustrating the XF7B-1 in its final form.

The general arrangement drawing illustrates the YP-29, the second Model 264 to fly, and the lower sideview depicts the YP-29B.

Boeing's last fighter, the XF8B-1, the first example of which is illustrated by the photograph.

The XF6B-1 with long-chord engine cowling and revised undercarriage leg fairings. This aircraft was subsequently redesignated XBFB-1.

The XF6B-1 with long-chord engine cowling and revised undercarriage leg fairings. This aircraft was subsequently redesignated XBFB-1.

The sole example of the Boccaccio-designed Borel two-seat fighter in its definitive form.