Boeing XP-15

The Boeing XP-15 was an American prototype monoplanefighter.

This aircraft was essentially a monoplane version of the Boeing P-12, differing in having the lower wing omitted and in having all-metal construction as well as altered ailerons. The XP-15 had a split-axle undercarriage and a tail wheel.^[1]

Boeing numbered the craft as its Model 202; while the United States Army accepted it for testing and designated it as XP-15, they never actually purchased it, and it retained its civil registration of X-270V.^[1]

The XP-15 first flew in January 1930, when it was discovered that the vertical stabilizer (a P-12C type) needed to be larger in order to compensate for the single wing. Initial testing showed a top speed to 178 mph, but with enlarged tail surfaces and a Townend cowling, it recorded 190 mph at 8,000 ft. The aircraft performed poorly, with a poor rate of climb and a high landing speed. The USAAC did not order the aircraft for production and on 7 February 1931, the prototype was destroyed when a propeller blade failed and the engine tore loose from its mounts.^[1]

The Navy was offered the similar Model 205. It first flew in February 1930. One was bought by the US Navy as the XF5B-1, but by the time flight testing was complete in 1932, other aircraft were ordered instead.

XP-15

1 built

XF5B-1

1 built

United States

• United States Army Air Corps
• United States Navy

Data from Angelucci 1987, pp. 81–82.^[1]

General characteristics

• Crew: one
• Length: 21 ft 0 in (6.40 m)
• Wingspan: 30 ft 6 in (9.29 m)
• Height: 9 ft 4.5 in (2.84 m)
• Wing area: 157.3 sq ft (14.61 m²)
• Empty weight: 2,052 lb (931 kg)
• Gross weight: 2,746 lb (1,246 kg)
• Powerplant: 1 × Pratt & Whitney SR-1340D Wasp , 525 hp (391 kW)

Performance

• Maximum speed: 190.2 mph (306 km/h, 165.3 kn)
• Cruise speed: 160 mph (257 km/h, 140 kn)
• Alcance: 420  mi (676  km, 360  nmi)
• Techo de servicio: 27.650  pies (8.428  m)
• Velocidad de ascenso: 1800  pies/min (9,15  m/s)

Armamento

• 2 ametralladoras de calibre .30

Desarrollo relacionado

• Boeing P-12

Listas relacionadas

• Lista de aeronaves militares de los Estados Unidos
• Lista de aviones de combate

• XF5B-1 Archivado el 20/12/2016 en Wayback Machine