North American P-51 Mustang
The North American Aviation P-51 Mustang is an American long-range,
single-seat fighter and fighter-bomber used during World War II, the
Korean War and other conflicts. The Mustang was conceived, designed and
built by North American Aviation (NAA) in response to a specification
issued directly to NAA by the British Purchasing Commission. The
prototype NA-73X airframe was rolled out on 9 September 1940, 102 days
after the contract was signed and first flew on 26 October.[4][5][6]
The Mustang was originally designed to use the Allison V-1710
engine, which had limited high-altitude performance. It was first flown
operationally by the Royal Air Force (RAF) as a tactical-reconnaissance
aircraft and fighter-bomber (Mustang Mk I). The addition of the
Rolls-Royce Merlin to the P-51B/C model transformed the Mustang's
performance at altitudes above 15,000 ft, matching or bettering that of
the Luftwaffe's fighters.[7][nb 1] The definitive version, the P-51D,
was powered by the Packard V-1650-7, a license-built version of the
Rolls-Royce Merlin 60 series two-stage two-speed supercharged engine,
and armed with six .50 caliber (12.7 mm) M2 Browning machine guns.[8]
From late 1943, P-51Bs (supplemented by P-51Ds from mid-1944) were
used by the USAAF's Eighth Air Force to escort bombers in raids over
Germany, while the RAF's 2 TAF and the USAAF's Ninth Air Force used the
Merlin-powered Mustangs as fighter-bombers, roles in which the Mustang
helped ensure Allied air superiority in 1944.[9] The P-51 was also in
service with Allied air forces in the North African, Mediterranean and
Italian theaters, and saw limited service against the Japanese in the
Pacific War. During World War II, Mustang pilots claimed 4,950 enemy
aircraft shot down.[nb 2]
At the start of the Korean War, the
Mustang was the main fighter of the United Nations until jet fighters
such as the F-86 took over this role; the Mustang then became a
specialized fighter-bomber. Despite the advent of jet fighters, the
Mustang remained in service with some air forces until the early 1980s.
After World War II and the Korean War, many Mustangs were converted for
civilian use, especially air racing, and increasingly, preserved and
flown as historic warbird aircraft at airshows.
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