Boeing XP-7

XP-7

General information
Type	Experimental Fighter
Manufacturer	Boeing
Primary user	United States Army Air Corps
Number built	1
History
First flight	September 1928^[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despite a proposal to build an additional four P-7s, the design was at the very limits of its capabilities and somewhat outdated even by the time of its first flight.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 sq ft (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 (450 kW)

Performance

Maximum speed: 167.5 mph (270 km/h, 145.6 kn)
Cruise speed: 134 mph (216 km/h, 116 kn)
Range: 250 mi (402 km, 220 nmi)
Service ceiling: 22,300 ft (6,797 m)
Rate of climb: 1,408 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.

^ ^a ^b ^c 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

v t e Boeing aircraft model numbers
Aircraft	1 2 3 4 5 6 6D/E 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 220 221 222 223 224 225 226 227 228 229 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 276 277 278 279 280 281 282 283 284 285 286 287 288 290 291 292 293 294 295 296 297 298 299 300 302 303 304 305 306 307 308 309 311 312 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 345-2/4/31 346 348 349 350 351 352 353 354 355 356 357 358 359 361 362 363 364 365 366 367 -76 367-80 368 369 370 371 372 373 374 375 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 431 432 433 434 435 436 437 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 479 480 481 482 483 484 485 486 490 493 495 497 498 701 733 739 814 815 818 820 831 844 853-21 953 1041 1044 1046 1074 1080 2000 2020 707 -020 717 (I) -100/146/148/166 717 (II) 720 727 737 -253 Classic Next Generation -700W -800A MAX 747 SP -2G4B -400 -4G4F -8 757 -2G4 767 777 X 787 2707
Turbine engines	8C 500 502 520 550
Missiles	600 601 602 621 624 631 641
Vessels	929
Other	Boeing Customer Codes

USAAS/USAAC/USAAF/USAF fighter designations 1924–1962, and Tri-Service post-1962 systems

1924 sequences
(1924–1962)

Pursuit (1924–1948)	P-1 P-2 P-3 P-4³ Curtiss P-4 Boeing P-4 P-5 P-6 P-7 P-8 P-9 P-10 P-11 P-12 P-13 P-14 P-15 P-16 P-17 P-18 P-19 P-20 P-21 P-22 P-23 P-24 P-25 P-26 P-27 P-28 P-29 P-30 P-31 P-32 P-33 P-34 P-35 P-36 P-37 P-38 P-39 P-39E P-40 P-41 P-42 P-43 P-44 P-45 P-46 P-47 P-48 P-49 P-50 P-51 P-52 P-53 P-54 P-55 P-56 P-57 P-58 P-59³ XP-59 P-59 P-60 P-61 P-62 P-63 P-64 P-65 P-66 P-67 P-68 P-69 P-70 P-71 P-72 P-73² P-74¹ P-75 P-76 P-77 P-78 P-79 P-80 P-81 P-82 P-83 P-84 P-85 P-86 P-87 P-88 P-89 P-90 P-91 P-92
Fighter (1948–1962)	F-38 F-39 F-40 F-47 F-51 F-59 F-61 RF-61C F-63 F-80 F-81 F-82 F-83 F-84 F-84F/J F-84H F-85 F-86 F-86C F-86D/G/K/L F-87 F-88 F-89 F-90 F-91 F-92 F-93 F-94 F-95 F-96 F-97 F-98 F-99 F-100 F-100B F-101 F-102 F-102B F-103 F-104 XF-104 F-104S NF-104A F-105 F-106³ XF-106 F-106 F-107 F-108 F-109² F-110 F-111 F-111B F-111C F-111K AFTI/F-111A EF-111A
Pursuit, biplace	PB-1 PB-2 PB-3
Fighter, multiplace	FM-1 FM-2
Non-sequential	F-24 P-322 P-400

Tri-service sequence
(1962–present)

Main sequence	F-1 F-1C/D F-1E/F F-2 F-3 F-4 F-4K/M F-5 G F-6 F-7 F-8 F-9 F-9F–J F-10 F-11 F-12 F-12C² F-13¹ F-14 F-15 F-15E F-15EX F-15J F-15 STOL/MTD F-16 F-16XL NF-16D F-17 F/A-18 F/A-18E/F EA-18G F-19¹ F-20 F-21 F-22 YF-22 FB-22 F-23
Non-sequential	F-35 F-35I X-35 F-117

Covert designations

Related designations

FV-12

¹ Not assigned • ² Unofficial • ³ Assigned to multiple types
See also: "F-19" • 1919–1924 sequence