Boeing XP-32 (Model 278A)

The Boeing XP-32 was the designation given to a un-built version of the YP-29 that would have been powered by a 700hp Pratt & Whitney engine.

The YP-29 was an improved version of the Boeing P-26 'Peashooter', developed in 1934. The P-26 was the first monoplane fighter to enter USAAC service, but it was a transitional design, with braced wings, a fixed undercarriage and an open cockpit.

The YP-29 used the fuselage and engine of the P-26 but with cantilevered wings that eliminated the external bracing and a retractable undercarriage. Three prototypes were built, two with cockpit canopies and one with an open canopy. They were powered by the Pratt & Whitney R-1340 Wasp engine. The YP-29 wasn't much of an improvement over the P-26 and didn't enter production.

The designation XP-32 was allocated to a 1934 version of the YP-29 that would have been powered by a 700hp Pratt & Whitney R-1525-1 twin-row radial engine. It would have been a low winged monoplane with a enclosed cockpit and tapered wings with a straight leading edge and curved trailing edge. The aircraft was never built but the retractable landing-gear designed for it was later used in the Brewster F2A-1 fighter.

Engine: Pratt & Whitney R-1535-1 Twin Wasp Jr
Power: 700hp
Crew: 1
Span: 31ft
Length: 27ft 5in
Gross Weight (as designed): 3,895lb
Estimated maximum speed: 250mph at 7,500ft

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How to cite this article: Rickard, J (3 September 2014), Boeing XP-32 (Model 278A) , http://www.historyofwar.org/articles/weapons_boeing_XP-32.html

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