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XP-47B, single prototype powered by a 1,960 hp XR-2800-21 engine. P-47B-RE, 171 aircraft powered by a 2,000 hp R-2800-21 engine with other modifications. RP-47B, designation originally applied to a handful of P-47B modified into photo-reconnaissance aircraft with a camera mounted in the port intercooler vent. [4]
Curtiss XP-40 in flight. XP-40 fitted with tracked landing gear. In 1937, the 10th P-36A was fitted with a 1,150 hp (860 kW) V-1710-19. Unlike the Model 75I, the resulting XP-40 (Model 75P) did not have a turbo-supercharger, thus the cockpit was not moved back, and the radiator was moved to the ventral position.
The Curtiss-Wright XP-55 Ascender (company designation CW-24) is a 1940s United States prototype fighter aircraft built by Curtiss-Wright.Along with the Vultee XP-54 and Northrop XP-56, it resulted from United States Army Air Corps proposal R-40C issued on 27 November 1939 for aircraft with improved performance, armament, and pilot visibility over existing fighters; it specifically allowed for ...
The designation XP-51F was assigned to prototypes powered with V-1650 engines (a small number were passed to the British as the Mustang V), and XP-51G to those with Merlin RM 14 SMs. [51] A third lightweight prototype powered by an Allison V-1710-119 was added to the development program. This aircraft was designated XP-51J. Since the engine was ...
Following rejection of the XP-46, Curtiss put forward its Model 88 in proposals to the United States Army Air Corps.The proposal was for an aircraft using the P-40D fuselage and tail assembly with a low drag NACA laminar flow wing, the (at the time under development) Continental I-1430-3 inverted V-12 engine, and eight wing-mounted 0.5 in (12.7 mm) machine guns. [2]
The Grumman XP-50 was a land-based development of the shipboard XF5F-1 Skyrocket fighter, entered into a United States Army Air Corps (USAAC) contest for a twin-engine heavy interceptor aircraft. The USAAC placed an order for a prototype on 25 November 1939, designating it XP-50 , but it lost the competition to the Lockheed XP-49 .
With Windows XP, the Start button has an updated appearance and is larger, making it faster to mouse over to it and click it.To help the user access a wider range of common destinations more easily from a single location, the Start menu was expanded to two columns; the left column focuses on the user's installed applications, while the right column provides access to the user's documents, and ...
The McDonnell XP-67 "Bat" or "Moonbat" [N 1] was a prototype for a twin-engine, long-range, single-seat interceptor aircraft for the United States Army Air Forces. Although the design was conceptually advanced, it was beset by numerous problems and never approached its anticipated level of performance.