Curtiss P-1 Hawk
The Curtiss P-1 Hawk was the first fighter aircraft of the U.S. Army, which the force from 1925 code " P" ( Pursuit ) instead of used 1919-1924 "PW" ( Pursuit water cooled, ) got.
History and construction
The single-engine P-1 arose from the Curtiss XPW -8B, which had won in July 1924 bid against Boeing XPW -9. The first production P-1 was delivered on August 17, 1925 the U.S. Army. Were delivered ten machines of type P-1, followed by 25 P -1A, P -1B 25 and 33 P- 1C. The production ended in 1929. P- 1 was replaced in 1930 by the Curtiss P-6 Hawk. Under the water-cooled V-engine biplane had a huge cooler and a rigid chassis.
- P-1 Curtiss V -1150 -1 engine (435 hp).
- P -1A P-1 with improved wings, etc.
- P -1B Curtiss V -1150 -3 engine (435 hp).
- P -1C Curtiss V -1150 -5 engine (435 hp).
- P-2 as a model 34B respectively. Curtiss V -1400 engine with 500 hp. Five built, three of them later converted to P -1A and one with XP - sixth
- XP -3 a converted from P-1 leistendem with 390 hp Curtiss -R -1454 radial engine, later rebuilt in XP -3A.
- XP -3A converted XP -3 with Pratt & Whitney R -1340 -1 ( 410 hp).
- P -3A referred to as the Model 34N. 410 hp Pratt & Whitney R leis border -1340 - 7th
- XP -4 with a turbocharged Packard 1A -1530 (510 hp) equipped P -1A.
- XP -5 P -1A with 435 hp Curtiss V -1150 - leistendem third
- P-5, referred to as Model 34L. Curtiss D- 12F.
- XP -17 Wright V 1460-3 Tornado (480 hp, air-cooled), was mainly used for testing the motor.
- XP -21 XP -3A converted with Pratt & Whitney R -985 Wasp Junior.