Boeing XP-7

XP-7

Role	Experimental Fighter
Manufacturer	Boeing
First flight	September 1928^[1]
Primary user	United States Army Air Corps
Number built	1
Developed from	Boeing PW-9D

The Boeing XP-7 was a prototype United States biplane fighter of the 1920s.

Development and design

The XP-7 started life as the last Boeing Model 15 (PW-9D), serial 28-41. It was then adapted to mount the 600 hp Curtiss V-1570 Conqueror engine. Labelled by Boeing as their Model 93, the XP-7's nose was shorter and deeper than that of the standard PW-9, and the craft was 75 pounds lighter overall.

It first flew in September 1928 and did well, with a 17 mph speed increase over the PW-9. However, despite a proposal to build an additional four P-7s, the design was at the very limits of its capabilities and somewhat outdated even by the time of its first flight. At the end of testing, the Conqueror engine was removed and the aircraft converted back into a PW-9D.^[1]

Operators

United States

United States Army Air Corps

Specifications

Data from ^[1]

General characteristics

Crew: 1
Length: 24 ft 0 in (7.31 m)
Wingspan: 32 ft 0 in (9.75 m)
Height: 9 ft 0 in (2.74 m)
Wing area: 252 ft² (23.4 m²)
Empty weight: 2,358 lb (1,070 kg)
Gross weight: 3,260 lb (1,479 kg)
Powerplant: 1 × Curtiss V-1570-1, 600 hp ( kW)

Performance

Maximum speed: 167.5 mph (270 km/h)
Cruise speed: 134 mph (216 km/h)
Range: 250 miles (402 km)
Service ceiling: 22,300 ft (6,797 m)
Rate of climb: 1408 ft/min (7.2 m/s)

Armament

1x .50in machine gun
1x .30in machine gun
125lb (57kg) bombs

Related lists

References

Wikimedia Commons has media related to Boeing XP-7.

1 2 3 Angelucci, 1987. p. 72.

Bibliography

Angelucci, Enzo (1987). The American Fighter from 1917 to the present. New York: Orion Books.
Lloyd S. Jones, U.S. Fighters (Aero Publishers, Inc., 1975) pp. 32–33 ISBN 0-8168-9200-8

Boeing model numbers
Aircraft	1 2 3 4 5 6 6D 6E 7 8 10 15 16 21 40 42 50 53 54 55 58 63 64 66 67 68 69 72 74 75 77 80 81 83 89 93 95 96 99 100 101 102 200 202 203 204 205 214 215 218 221 222 223 226 227 234 235 236 246 247 248 251 256 264 266 267 273 280 281 294 299 300 306 307 314 316 344 345 367 367-80 377 400 450 451 464 466 474 479 701 818 953 707 717 (i) 717 (ii) 720 727 733 737 739 747 757 767 777 787 2707
Turbine engines	500 502 520 550
Vessels	929
Other	Boeing Customer Codes

USAAS/USAAC/USAAF/USAF fighter designations 1924–1962
Pursuit (pre-1948) Fighter (post-1948)	P-1 P-2 P-3 XP-4 P-5 P-6 XP-7 XP-8 XP-9 XP-10 P-11 P-12 XP-13 XP-14 XP-15 P-16 P-17 YP-18 YP-19 YP-20 P-21 XP-22 P-23 YP-24 P-25 P-26 P-27 P-28 P-29 P-30 XP-31 P-32 P-33 XP-34 P-35 P-36 P-37 P-38 P-39 P-40 XP-41 P-42 P-43 P-44 P-45 XP-46 P-47 XP-48 XP-49 XP-50 P-51 XP-52 P-53 XP-54 XP-55 XP-56 XP-57 XP-58 P-59 P-60 P-61/C XP-62 P-63 P-64 P-65 P-66 XP-67 XP-68 P-69 P-70 XP-71 XP-72 P-73 P-74¹ P-75 P-76 XP-77 P-78 XP-79 P-80 XP-81 F-82 XP-83 F-84 F-85 F-86/D XF-87 F-88 F-89 XF-90 XF-91 XF-92 YF-93 F-94 F-95 F-96 F-97 F-98 F-99 F-100 F-101 F-102 XF-103 F-104 F-105 F-106 F-107 XF-108 XF-109 F-110 F-111/B
Pursuit, Biplace	PB-1 PB-2 PB-3
Fighter, Multiplace	FM-1 FM-2
¹ Not assigned See also: F-24 • F-117 • P-400 • post-1962 sequence

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