Curtiss XP-42
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The Curtiss XP-42 was an experimental fighter built by
Curtiss Aircraft Curtiss Aeroplane and Motor Company (1909 – 1929) was an American aircraft manufacturer originally founded by Glenn Hammond Curtiss and Augustus Moore Herring in Hammondsport, New York. After significant commercial success in its first decades ...
in the late 1930s to research engine cooling and improving the performance of the
Curtiss P-36 The Curtiss P-36 Hawk, also known as the Curtiss Hawk Model 75, is an American-designed and built fighter aircraft of the 1930s and 40s. A contemporary of the Hawker Hurricane and Messerschmitt Bf 109, it was one of the first of a new generation ...
.


Design and development

The fourth production P-36 (serial 38-004) became a development platform for a direct successor, designated XP-42 by the USAAC. The XP-42 was powered by a
Pratt & Whitney Pratt & Whitney is an American aerospace manufacturer with global service operations. It is a subsidiary of Raytheon Technologies. Pratt & Whitney's aircraft engines are widely used in both civil aviation (especially airlines) and military aviat ...
R-1830-31 engine fitted with a longer, streamlined cowling and a large propeller spinner. These features attempted to improve the aerodynamics of the air-cooled radial engine. Because of this feature, the XP-42 superficially resembled aircraft equipped with in-line liquid-cooled engines (such as the
P-40 The Curtiss P-40 Warhawk is an American single-engined, single-seat, all-metal fighter and ground-attack aircraft that first flew in 1938. The P-40 design was a modification of the previous Curtiss P-36 Hawk which reduced development time an ...
, another development of the P-36). When the XP-42 first flew in March 1939, it proved to be faster than the P-36. However, the P-40 was faster still and the new nose cowling caused engine cooling problems that proved to be unresolvable, despite at least 12 sets of modifications. The XP-42 project was canceled. However, the XP-42 prototype was retained as a test-bed and was later fitted with an all-moving tail (
stabilator A stabilator is a fully movable aircraft horizontal stabilizer. It serves the usual functions of longitudinal stability, control and stick force requirements otherwise performed by the separate parts of a conventional horizontal stabilizer and el ...
), for research purposes. This aircraft was scrapped on July 15, 1947.


Specifications (XP-42)


See also

Related development *
Curtiss P-36 The Curtiss P-36 Hawk, also known as the Curtiss Hawk Model 75, is an American-designed and built fighter aircraft of the 1930s and 40s. A contemporary of the Hawker Hurricane and Messerschmitt Bf 109, it was one of the first of a new generation ...
– precursor of the P-40 *
Curtiss YP-37 The Curtiss P-37 was an American fighter aircraft made by Curtiss-Wright in 1937 for the US Army Air Corps. A development of the Curtiss P-36 Hawk to use an inline engine instead of the radial engine of the P-36 the fuselage was lengthened an ...
– an experimental design based on the P-36 *
Curtiss P-40 The Curtiss P-40 Warhawk is an American single-engined, single-seat, all-metal fighter and ground-attack aircraft that first flew in 1938. The P-40 design was a modification of the previous Curtiss P-36 Hawk which reduced development time and ...
*
Curtiss XP-46 The Curtiss XP-46 was a 1940s American prototype fighter aircraft. It was a development of the Curtiss-Wright Corporation in an effort to introduce the best features found in European fighter aircraft in 1939 into a fighter aircraft which could s ...
– another design based on the P-40; not put into production


References

{{USAF fighters XP-42
Curtiss XP-42 The Curtiss XP-42 was an experimental fighter built by Curtiss Aircraft in the late 1930s to research engine cooling and improving the performance of the Curtiss P-36. Design and development The fourth production P-36 (serial 38-004) became a ...
Single-engined tractor aircraft Low-wing aircraft Aircraft first flown in 1939