North American XP-51 (NA-73)
World War II single-engine single-seat monoplane fighter
Archive Photos ¹
North American XP-51 (NA-73, AF 41-38, c/n 73-3101) on display (9/12/2003) at the EAA AirVenture Museum, Oshkosh, Wisconsin (Photo by John Shupek copyright © 2003 Skytamer Images)
- North American P-51 Mustang
- Role: Fighter
- National origin: United States
- Manufacturer: North American Aviation
- First flight: 26 October 1940
- Introduction: 1942
- Status: Retired from military service 1984, still in civil use
- Primary users: United States Army Air Forces; Royal Air Force; Chinese Nationalist Air Force; numerous others
- Number built: More than 15,000
- Unit cost: US$50,985 in 1945
- Variants: North American A-36; Rolls-Royce Mustang Mk.X; Cavalier Mustang
- Developed into: North American F-82 Twin Mustang; North American A-36; Piper PA-48 Enforcer; Rolls-Royce Mustang Mk.X
The North American Aviation P-51 Mustang was an American long-range, single-seat fighter and fighter-bomber used during World War II, the Korean War and several other conflicts. During World War II, Mustang pilots claimed 4,950 enemy aircraft shot down.
It was conceived, designed and built by North American Aviation (NAA), under the direction of lead engineer Edgar Schmued, 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, albeit without an engine, 102 days after the contract was signed and first flew on 26 October.
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. The addition of the Rolls-Royce Merlin to the P-51B/C model transformed the Mustang's performance at altitudes above 15,000 ft, giving it a performance that matched or bettered the majority of the Luftwaffe's fighters at altitude. 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 0.50 caliber (12.7 mm) M2 Browning machine guns.
From late 1943, P-51B's (supplemented by P-51D's 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. 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.
At the start of 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.
Design and Development ²
In April 1938, shortly after the German Anschluss of Austria, the British government established a purchasing commission in the United States, headed by Sir Henry Self. Self was given overall responsibility for Royal Air Force (RAF) production and research and development, and also served with Sir Wilfrid Freeman, the "Air Member for Development and Production". Self also sat on the British Air Council Sub-committee on Supply (or "Supply Committee") and one of his tasks was to organize the manufacturing and supply of American fighter aircraft for the RAF. At the time, the choice was very limited, as no U.S. aircraft then in production or flying met European standards, with only the Curtiss P-40 Tomahawk coming close. The Curtiss-Wright plant was running at capacity, so P-40's were in short supply.
North American Aviation (NAA) was already supplying its Harvard trainer to the RAF, but was otherwise under utilized. NAA President "Dutch" Kindelberger approached Self to sell a new medium bomber, the B-25 Mitchell. Instead, Self asked if NAA could manufacture the Tomahawk under license from Curtiss. Kindelberger said NAA could have a better aircraft with the same engine in the air sooner than establishing a production line for the Curtiss P-40. The Commission stipulated armament of four 0.303 in (7.7 mm) machine guns, the Allison V-1710 liquid-cooled engine, a unit cost of no more than $40,000, and delivery of the first production aircraft by January 1941. In March 1940, 320 aircraft were ordered by Sir Wilfred Freeman who had become the executive head of Ministry of Aircraft Production (MAP), and the contract was promulgated on 24 April.
The design, known as the NA-73X, followed the best conventional practice of the era, but included several new features. One was a wing designed using laminar flow airfoils which were developed co-operatively by North American Aviation and the National Advisory Committee for Aeronautics (NACA). These airfoils generated very low drag at high speeds. During the development of the NA-73X, a wind tunnel test of two wings, one using NACA 5-digit airfoils and the other using the new NAA/NACA 45-100 airfoils, was performed in the University of Washington Kirsten Wind Tunnel. The results of this test showed the superiority of the wing designed with the NAA/NACA 45-100 airfoils. The other feature was a new radiator design that exploited the "Meredith Effect", in which heated air exited the radiator as a slight amount of jet thrust. Because NAA lacked a suitable wind tunnel to test this feature, it used the GALCIT 10 ft (3.0 m) wind tunnel at Caltech. This led to some controversy over whether the Mustang's cooling system aerodynamics were developed by NAA's engineer Edgar Schmued or by Curtiss, although NAA had purchased the complete set of Curtiss P-40 and Curtiss XP-46 wind tunnel data and flight test reports for US$56,000. The NA-73X was also one of the first aircraft to have a fuselage lofted mathematically using conic sections; this resulted in the aircraft's fuselage having smooth, low drag surfaces. To aid production, the airframe was divided into five main sections—forward, center, rear fuselage and two wing halves—all of which were fitted with wiring and piping before being joined.
The prototype NA-73X was rolled out in September 1940 and first flew on 26 October 1940, respectively 102 and 149 days after the order had been placed, an uncommonly short gestation period. The prototype handled well and accommodated an impressive fuel load. The aircraft's two-section, semi-monocoque fuselage was constructed entirely of aluminum to save weight. It was armed with four 0.30 in (7.62 mm) M1919 Browning machine guns, two in the wings and two mounted under the engine and firing through the propeller arc using gun synchronizing gear.
While the United States Army Air Corps (USAAC) could block any sales it considered detrimental to the interests of the US, the NA-73 was considered to be a special case because it had been designed at the behest of the British. In September 1940 a further 300 NA-73's were ordered by MAP. To ensure uninterrupted delivery Colonel Oliver P. Echols arranged with the Anglo-French Purchasing Commission to deliver the aircraft, and NAA gave two examples to the USAAC for evaluation.
Operational History ²
U.S. Operational Service
Pre-war doctrine of most bomber forces was to attack at night when the bombers would be effectively immune to interception. The loss in accuracy due to limited visibility was a high price to pay, protecting small targets from attack. The only targets that could be attacked were large ones, effectively whole cities. As "the bomber will always get through", the future of war was believed to consist of large fleets of bombers pounding each other's cities night after night. The Royal Air Force based its development policy on this concept, developing a series of dedicated night bombers.
There were those that dismissed this concept as immoral and continued to press for precision attacks on strategic targets as the most effective means of waging war. The RAF did attempt several long-range daylight raids early in the war using the Vickers Wellington, but suffered such high casualties that they abandoned the effort quickly. The Luftwaffe had the advantage of bases in France that allowed their fighters to escort the bombers at least part way on their missions. This strategy proved ineffective, as the RAF fighters ignored the escorts and attacked the bombers. The Germans abandoned day bombing and switched to night bombing during The Blitz of 1940–41. By the end of 1940, it appeared that daylight strategic bombing was ineffective.
American pre-war doctrine developed out of an isolationist policy that was primarily defensive. The B-17 had originally been designed to attack shipping at long range from U.S. bases. For this role it needed to be able to attack in daylight and used the advanced Norden bombsight to improve accuracy. As the bomber developed, more and more defensive armament was added to outgun the fighters it would face. In light of this heavy defensive firepower, the USAAC came to believe that tightly packed formations of B-17's would have so much firepower that they could fend off fighters on their own. In spite of evidence to the contrary from the RAF and Luftwaffe, this strategy was believed to be sound. When the U.S. entered the war they put this strategy into force, building up a strategic bomber force based in Britain.
Trial by Fire
The 8th Air Force started operations from Britain in August 1942. At first, because of the limited scale of operations, there was no conclusive evidence that the American doctrine was failing. In the 26 operations which had been flown to the end of 1942 the loss rate had been under 2%. This rate was better than the RAF's night efforts, and similar to the losses one would expect due to mechanical failure.
In January 1943, at the Casablanca Conference, the Allies formulated the Combined Bomber Offensive (CBO) plan for "round-the-clock" bombing by the RAF at night and the USAAF by day. In June 1943, the Combined Chiefs of Staff issued the Pointblank Directive to destroy the Luftwaffe before the invasion of Europe, putting the CBO into full implementation. Following this, the 8th Air Force's heavy bombers conducted a series of deep-penetration raids into Germany, beyond the range of escort fighters.
German daytime fighter efforts were, at that time, focused on the eastern front and several other distant locations. Initial efforts by the 8th met limited and unorganized resistance, but with every mission the Luftwaffe moved more aircraft to the west and quickly improved their battle direction. The Schweinfurt–Regensburg mission in August lost 60 B-17's of a force of 376, the October 14 attack lost 77 of a force of 291, 26% of the attacking force. Losses were so severe that long-range missions were called off.
The solution was understood - escorting fighters could break up attacks by fighters before they could reach the bombers. The Lockheed P-38 Lightning had the range to escort the bombers, but was only available in small numbers in the European theater due to its Allison engines proving difficult to maintain. It was also a very expensive aircraft to build and operate. The Republic P-47 Thunderbolt was capable of meeting the Luftwaffe on more than even terms, but did not at the time have sufficient range. The Luftwaffe quickly identified its maximum range, and their fighters waited for the bombers just beyond the point where the Thunderbolts had to turn Back.
The P-51 Mustang was a solution to the clear need for an effective bomber escort. The Mustang was at least as simple as other aircraft of its era. It used a common, reliable engine and had internal space for a huge fuel load. With external fuel tanks, it could accompany the bombers all the way to Germany and Back. Enough P-51's became available to the 8th and 9th Air Forces in the winter of 1943–44. When the Pointblank offensive resumed in early 1944, matters changed dramatically. The P-51 proved perfect for escorting bombers all the way to the deepest targets. The Eighth Air Force began to switch its fighter groups to the Mustang, first exchanging arriving P-47 groups for those of the 9th Air Force using P-51's, then gradually converting its Thunderbolt and Lightning groups. The defense was initially layered, using the shorter range P-38's and P-47's to escort the bombers during the initial stages of the raid and then handing over to the P-51 when they turned for home. By the end of 1944, 14 of its 15 groups flew the Mustang.
The Luftwaffe initially adapted to the U.S. fighters by modifying their tactics, massing in front of the bombers and then attacking in a pass through the formation. Flying in close formation with the bombers, the P-51's had little time to react before the attackers were already running out of range. To better deal with the bombers, the Luftwaffe started increasing the armament on their fighters with heavy cannons. The additional weight decreased performance to the point where their aircraft were vulnerable if caught by the P-51's. At first, their defensive tactic was to avoid prolonged dogfights.
Destroying the Luftwaffe
General James Doolittle told the fighters in early 1944 to stop flying in formation with the bombers and instead attack the Luftwaffe wherever it could be found. The Mustang groups were sent in before the bombers, forming up well ahead of the bomber formations in an air superiority "fighter sweep" manner, and could hunt the German fighters while they were forming up. The results were astonishing; the Luftwaffe lost 17% of its fighter pilots in just over a week. As Doolittle later noted, "Adolf Galland said that the day we took our fighters off the bombers and put them against the German fighters, that is, went from defensive to offensive, Germany lost the air war."
The Luftwaffe answer was the Gefechtsverband (battle formation). It consisted of a Sturmgruppe of heavily armed and armored Fw.190's escorted by two Begleitgruppen of light fighters, often Bf.109G's, whose task was to keep the Mustangs away from the Fw.190's attacking the bombers. This scheme was excellent in theory but difficult to apply in practice. The large German formation took a long time to assemble and was difficult to maneuver. It was often intercepted by the escorting P-51's using the newer "fighter sweep" tactics out ahead of the heavy bomber formations, breaking up the Gefechtsverband formations before reaching the bombers; when the Sturmgruppe worked, the effects were devastating. With their engines and cockpits heavily armored, the Fw.190's attacked from astern and gun camera films show that these attacks were often pressed to within 100 yds (90 m).
While not always able to avoid contact with the escorts, the threat of mass attacks and later the "company front" (eight abreast) assaults by armored Sturmgruppe Fw.190's brought an urgency to attacking the Luftwaffe wherever it could be found. Beginning in late February 1944, 8th Air Force fighter units began systematic strafing attacks on German airfields with increasing frequency and intensity throughout the spring with the objective of gaining air supremacy over the Normandy battlefield. In general these were conducted by units returning from escort missions but, beginning in March, many groups also were assigned airfield attacks instead of bomber support. The P-51, particularly with the advent of the K-14 Gyro gun sight and the development of "Clobber Colleges" for the training of fighter pilots in fall 1944, was a decisive element in Allied countermeasures against the Jagdverbände.
The numerical superiority of the USAAF fighters, superb flying characteristics of the P-51, and pilot proficiency helped cripple the Luftwaffe's fighter force. As a result the fighter threat to US, and later British, bombers was greatly diminished by July 1944. Reichmarshal Hermann Göring, commander of the German Luftwaffe during the war, was quoted as saying, "When I saw Mustangs over Berlin, I knew the jig was up."
On 15 April 1944, VIII FC began Operation Jackpot, attacks on Luftwaffe fighter airfields. As the efficacy of these missions increased, the number of fighters at the German air bases fell to the point where they were no longer useful targets and on 21 May, targets were expanded to include railways, locomotives and rolling stock used by the Germans to transport materiel and troops, in missions dubbed "Chattanooga". The P-51 excelled at this mission, although losses were much higher on strafing missions than in air-to-air combat, partially because like other fighters using liquid-cooled engines, the Mustang's coolant system could be punctured by small arms.
Given the overwhelming Allied air superiority, the Luftwaffe put its effort into the development of aircraft of such high performance that they could operate with impunity. Foremost among these were the Messerschmitt Me.163 Komet rocket interceptors and Messerschmitt Me.262 jet fighter. In action, the Me.163 proved to be more dangerous to the Luftwaffe than to the Allies and was never a serious threat. The Me.262 was, but attacks on their airfields neutralized them. The jet engines of the Me.262's needed careful nursing by their pilots and these aircraft were particularly vulnerable during takeoff and landing. Lt. Chuck Yeager of the 357th Fighter Group was one of the first American pilots to shoot down a Me.262 which he caught during its landing approach. On 7 October 1944, Lt. Urban Drew of the 365th Fighter Group shot down two Me.262's that were taking off, while on the same day Lt. Col. Hubert Zemke, who had transferred to the Mustang equipped 479th Fighter Group, shot down what he thought was a Bf.109, only to have his gun camera film reveal that it may have been an Me.262.
The Mustang also proved useful against the V-1's launched toward London. P-51B/C's using 150 octane fuel were fast enough to catch the V-1 and operated in concert with shorter-range aircraft like advanced marks of the Supermarine Spitfire and Hawker Tempest.
By 8 May 1945, the 8th, 9th and 15th Air Force's P-51 groups claimed some 4,950 aircraft shot down (about half of all USAAF claims in the European theater), the most claimed by any Allied fighter in air-to-air combat and 4,131 destroyed on the ground. Losses were about 2,520 aircraft. The 8th Air Force's 4th Fighter Group was the top-scoring fighter group in Europe, with 1,016 enemy aircraft claimed destroyed. This included 550 claimed in aerial combat and 466 on the ground.
In air combat, the top-scoring P-51 units (both of which exclusively flew Mustangs) were the 357th Fighter Group of the 8th Air Force with 565 air-to-air combat victories and the Ninth Air Force's 354th Fighter Group with 664, which made it one of the top scoring fighter groups. Martin Bowman reports that in the European Theater of Operations, Mustangs flew 213,873 sorties and lost 2,520 aircraft to all causes. The top Mustang ace was the USAAF's George Preddy, whose final tally stood at 26.333, 23 scored with the P-51, when he was shot down and killed by friendly fire on Christmas Day 1944 during the Battle of the Bulge.
In China and the Pacific Theater
In 1943, P-51B joined the American Volunteer Group. In early 1945, P-51C, D and K variants also joined the Chinese Nationalist Air Force. These Mustangs were provided to the 3rd, 4th and 5th Fighter Groups and used to attack Japanese targets in occupied areas of China. The P-51 became the most capable fighter in China while the Imperial Japanese Army Air Force used the Ki-84 Hayate against it.
The P-51 was a relative latecomer to the Pacific Theater. This was due largely to the need for the aircraft in Europe, although the P-38's twin-engine design was considered a safety advantage for long over-water flights. The first P-51's were deployed in the Far East later in 1944, operating in close-support and escort missions, as well as tactical photo reconnaissance. As the war in Europe wound down, the P-51 became more common: eventually, with the capture of Iwo Jima, it was able to be used as a bomber escort during B-29 missions against the Japanese homeland.
The P-51 was often mistaken for the Japanese Ki-61 Hien in both China and Pacific because of its similar appearance.
Chief Naval Test Pilot and C.O. Captured Enemy Aircraft Flight Capt. Eric Brown, CBE, DSC, AFC, RN, tested the Mustang at RAE Farnborough in March 1944, and noted, "The Mustang was a good fighter and the best escort due to its incredible range, make no mistake about it. It was also the best American dogfighter. But the laminar flow wing fitted to the Mustang could be a little tricky. It could not by no means out-turn a Spitfire. No way. It had a good rate-of-roll, better than the Spitfire, so I would say the plusses to the Spitfire and the Mustang just about equate. If I were in a dogfight, I'd prefer to be flying the Spitfire. The problem was I wouldn't like to be in a dogfight near Berlin, because I could never get home to Britain in a Spitfire!"
Luftwaffe Experten were confident that they could outmaneuver the P-51 in a dogfight. Kurt Bühligen, the third-highest scoring German fighter pilot of the Second World War on the Western Front, with 112 victories, later recalled that "We would out-turn the P-51 and the other American fighters, with the (Bf) '109' or the (Fw) '190'. Their turn rate was about the same. The P-51 was faster than us but our munitions and cannon were better."
Post-World War II
In the aftermath of World War II, the USAAF consolidated much of its wartime combat force and selected the P-51 as a "standard" piston-engine fighter, while other types, such as the P-38 and P-47, were withdrawn or given substantially reduced roles. As the more advanced (P-80 and P-84) jet fighters were introduced, the P-51 was also relegated to secondary duties.
In 1947, the newly-formed USAF Strategic Air Command employed Mustangs alongside F-6 Mustangs and F-82 Twin Mustangs, due to their range capabilities. In 1948, the designation P-51 (P for pursuit) was changed to F-51 (F for fighter), and the existing F designator for photographic reconnaissance aircraft was dropped because of a new designation scheme throughout the USAF. Aircraft still in service in the USAF or Air National Guard (ANG) when the system was changed included: F-51B, F-51D, F-51K, RF-51D (formerly F-6D), RF-51K (formerly F-6K), and TRF-51D (two-seat trainer conversions of F-6D's). They remained in service from 1946 through 1951. By 1950, although Mustangs continued in service with the USAF after the war, the majority of the USAF's Mustangs had become surplus to requirements and placed in storage, while some were transferred to the Air Force Reserve (AFRES) and the Air National Guard (ANG).
From the start of the Korean War, the Mustang once again proved useful. A substantial number of stored or in service F-51D's were shipped, via aircraft carriers, to the combat zone and were used by the USAF, and the Republic of Korea Air Force (ROKAF). The F-51 was used for ground attack, fitted with rockets and bombs, and photo-reconnaissance, rather than being as interceptors or "pure" fighters. After the first North Korean invasion, USAF units were forced to fly from bases in Japan, and the F-51D's, with their long range and endurance, could attack targets in Korea that short-ranged F-80 jets could not. Because of the vulnerable liquid cooling system, however, the F-51's sustained heavy losses to ground fire. Because of its lighter structure, and a shortage of spare parts, the newer, faster F-51H was not used in Korea.
Mustangs continued flying with USAF and ROKAF fighter-bomber units on close support and interdiction missions in Korea until 1953, when they were largely replaced as fighter-bombers by USAF F-84's, and by United States Navy (USN) Grumman F9F Panthers. Other air forces and units using the Mustang included the Royal Australian Air Force's (RAAF)'s 77 Squadron, which flew Australian-built Mustangs as part of British Commonwealth Forces Korea. The Mustangs were replaced by Gloster Meteor F.8's in 1951. The South African Air Force's (SAAF)'s 2 Squadron used U.S. built Mustangs as part of the U.S. 18th Fighter Bomber Wing, and had suffered heavy losses by 1953, after which 2 Squadron converted to the F-86 Sabre.
F-51's flew in the Air Force Reserve and Air National Guard throughout the 1950's. The last American USAF Mustang was F-51D-30-NA (AF 44-74936), which was finally withdrawn from service with the West Virginia Air National Guard in late 1956 and retired to what was then called the Air Force Central Museum, although it was briefly reactivated to fly at the 50th anniversary of the Air Force Aerial Firepower Demonstration at the Air Proving Ground, Eglin AFB, Florida, on 6 May 1957. This aircraft, painted as P-51D-15-NA (AF 44-15174), is on display at the National Museum of the United States Air Force, Wright-Patterson AFB, in Dayton, Ohio,
The final withdrawal of the Mustang from USAF dumped hundreds of P-51's onto the civilian market. The rights to the Mustang design were purchased from North American by the Cavalier Aircraft Corporation, which attempted to market the surplus Mustang aircraft in the U.S. and overseas. In 1967 and again in 1972, the USAF procured batches of remanufactured Mustangs from Cavalier, most of them destined for air forces in South America and Asia that were participating in the Military Assistance Program (MAP). These aircraft were remanufactured from existing original F-51D airframes but were fitted with new V-1650-7 engines, a new radio fit, tall F-51H-type vertical tails, and a stronger wing that could carry six 0.50 in (13 mm) machine guns and a total of eight underwing hardpoints. Two 1,000 lb (454 kg) bombs and six 5 in (127 mm) rockets could be carried. They all had an original F-51D-type canopy, but carried a second seat for an observer behind the pilot. One additional Mustang was a two-seat dual-control TF-51D (67-14866) with an enlarged canopy and only four wing guns. Although these remanufactured Mustangs were intended for sale to South American and Asian nations through the MAP, they were delivered to the USAF with full USAF markings. They were, however, allocated new serial numbers (AF 67-14862/14866, AF 67-22579/22582 and AF 72-1526/1541).
The last U.S. military use of the F-51 was in 1968, when the U. S. Army employed a vintage F-51D (AF 44-72990) as a chase aircraft for the Lockheed YAH-56 Cheyenne armed helicopter project. This aircraft was so successful that the Army ordered two F-51D's from Cavalier in 1968 for use at Fort Rucker as chase planes. They were assigned the serials AF 68-15795 and AF 68-15796. These F-51's had wingtip fuel tanks and were unarmed. Following the end of the Cheyenne program, these two chase aircraft were used for other projects. One of them (AF 68-15795) was fitted with a 106 mm recoilless rifle for evaluation of the weapon's value in attacking fortified ground targets. Cavalier Mustang (AF 68-15796) survives at the Air Force Armament Museum, Eglin AFB, Florida, displayed indoors in World War II markings.
The F-51 was adopted by many foreign air forces and continued to be an effective fighter into the mid-1980's with smaller air arms. The last Mustang ever downed in battle occurred during Operation Power Pack in the Dominican Republic in 1965, with the last aircraft finally being retired by the Dominican Air Force (FAD) in 1984.
After World War II, the P-51 Mustang served in the air arms of more than 55 nations. During wartime, a Mustang cost about $51,000 dollars, while many hundreds were sold postwar for the nominal price of one dollar to the American countries that signed the Inter-American Treaty of Reciprocal Assistance, ratified in Rio de Janeiro in 1947. Following is a list of some of the countries that used the P-51 Mustang.
In November 1944, 3 Squadron RAAF became the first Royal Australian Air Force unit to use Mustangs. At the time of its conversion from the P-40 to the Mustang the squadron was based in Italy with the RAF's First Tactical Air Force. By this time, the Australian government had also decided to order Australian-built Mustangs, to replace its Curtiss Kittyhawks and CAC Boomerangs in the South West Pacific theater. The Commonwealth Aircraft Corporation (CAC) factory at Fishermans Bend, Melbourne was the only non-U.S. production line for the P-51.
In 1944, 100 P-51D's were shipped from the U.S. in kit form to inaugurate production. From February 1945, CAC assembled 80 of these under the designation CA-17 Mustang Mark 20, with the first one being handed over to the RAAF on 4 June 1945. The remaining 20 were kept unassembled as spare parts. In addition, 84 P-51K's were also shipped directly to the RAAF from the USA.
In late 1946 CAC was given another contract to build 170 (reduced to 120) more P-51D's on its own; these, designated CA-18 Mustang Mark 21, Mark 22 or Mark 23, were manufactured entirely in-house, with only a few components being sourced from overseas. The 21 and 22 used the American-built Packard V-1650-3 or V-1650-7. The Mark 23's, which followed the 21's, were powered by Rolls-Royce Merlin 66 or Merlin 70 engines. The first 26 were built as Mark 21's, followed by 66 Mark 23's; the first 14 Mark 21's were converted to fighter-reconnaissance aircraft, with two F24 cameras in both vertical and oblique positions in the rear fuselage, above and behind the radiator fairing; the designation of these modified Mustangs was changed from Mark 21 to Mark 22. An additional 14 purpose-built Mark 22's, built after the Mark 23's, and powered by either Packard V-1650-7's or Merlin 68's, completed the production run. All of the CA-17's and CA-18's, plus the 84 P-51K's, used Australian serial numbers prefixed by A68.,/p>
3 Squadron was renumbered 4 Squadron after returning to Australia from Italy and converted to CAC-built Mustangs. Several other Australian or Pacific based squadrons converted to P-51's from July 1945, having been equipped with P-40's or Boomerangs for wartime service; these units were: 76, 77, 82, 83, 84 and 86 Squadrons. Only 17 Mustangs reached the RAAF's First Tactical Air Force front line squadrons by the time World War II ended in August 1945.
76, 77 and 82 Squadrons were formed into 81 Fighter Wing of the British Commonwealth Air Force (BCAIR) which was part of the British Commonwealth Occupation Force (BCOF) stationed in Japan from February 1946. 77 Squadron used its P-51's extensively during the first years of the Korean War, before converting to Gloster Meteor jets.
Five reserve units from the Citizen Air Force (CAF) also operated Mustangs. 21 "City of Melbourne" Squadron, based in the state of Victoria; 22 "City of Sydney" Squadron, based in New South Wales; 23 "City of Brisbane" Squadron, based in Queensland; 24 "City of Adelaide" Squadron, based in South Australia; and 25 "City of Perth" Squadron, based in Western Australia. The last Mustangs were retired from these units in 1960 when CAF units adopted a non-flying role.
In October 1953, six Mustangs, including A68-1, the first Australian built CA-17 Mk.20, were allotted to the Long Range Weapons Development Establishment at Maralinga, South Australia, for use in experiments to gauge the effects of low-yield nuclear atomic bombs. The Mustangs were placed on a dummy airfield about 0.62 mi (1 km) from the blast tower on which two low-yield bombs were detonated. The Mustangs survived intact. In 1967, A68-1 was bought by a U.S. syndicate, for restoration to flight status and is currently owned by Troy Sanders.
Nine Cavalier F-51D (including the two TF-51's) were given to Bolivia, under a program called Peace Condor.
Canada had five squadrons equipped with Mustangs during World War II. RCAF 400, 414 and 430 squadrons flew Mustang Mk.I's (1942-1944), and 441 and 442 Squadrons flew Mustang Mk.III's and Mk.IVA's in 1945. Postwar, a total of 150 Mustang P-51D's were purchased and served in two regular (416 "Lynx" and 417 "City of Windsor") and six auxiliary fighter squadrons (402 "City of Winnipeg", 403 "City of Calgary", 420 "City of London", 424 "City of Hamilton", 442 "City of Vancouver" and 443 "City of New Westminster"). The Mustangs were declared obsolete in 1956, but a number of special-duty versions served on into the early 1960's.
The P-51 firstly joined the Chinese Nationalist Air Force during the late Sino-Japanese War to fight against the Japanese. After the war Chiang Kai-shek's Nationalist government used the planes against insurgent Communist forces. The Nationalists retreated to Taiwan in 1949. Pilots supporting Chiang brought most of the Mustangs with them, where the aircraft became part of the island's defence arsenal. Taiwan subsequently acquired additional Mustangs from the USAF and other sources. Some Mustangs remained on the mainland, captured by Communist forces when the Nationalists left.
People's Republic of China
See China above; the Chinese Communists captured 39 P-51's from the Chinese Nationalists as they were retreating to Taiwan.
The Costa Rica Air Force flew four P-51D's from 1955 to 1964.
In November 1958, three US-registered civilian P-51D Mustangs were illegally flown separately from Miami to Cuba, on delivery to the rebel forces of the 26th of July Movement, then headed by Fidel Castro during the Cuban Revolution. One of the Mustangs was damaged during delivery, and none of them were used operationally. After the success of the revolution in January 1959, with other rebel aircraft plus those of the existing Cuban government forces, they were adopted into the Fuerza Aérea Revolucionaria. Due to increasing U.S. restrictions, lack of spares and maintenance experience, they never achieved operational status. At the time of the Bay of Pigs invasion, the two intact Mustangs were already effectively grounded at Campo Columbia and at Santiago. After the failed invasion, they were placed on display with other symbols of "revolutionary struggle", and one remains on display at the Museo del Aire (Cuba).
The Dominican Republic (FAD) was the largest Latin American air force to employ the P-51D, with six aircraft acquired in 1948, 44 ex-Swedish F-51D's purchased in 1948 and a further Mustang obtained from an unknown source. It was the last nation to have any Mustangs in service, with some remaining in use as late as 1984. Nine of the final 10 aircraft were sold Back to American collectors in 1988.
The FAS purchased five Cavalier Mustang II's (and one dual control Cavalier TF-51) that featured wingtip fuel tanks to increase combat range and up-rated Merlin engines. Seven P-51D Mustangs were also in service. They were used during the 1969 Soccer War against Honduras, the last time the P-51 was used in combat. One of them, FAS-404, was shot down by a F4U-5 flown by Cap. Fernando Soto in the last aerial combat between piston engine fighters in the world.
In late 1944, the first French unit began its transition to reconnaissance Mustangs. In January 1945, the Tactical Reconnaissance Squadron 2/33 of the French Air Force took their F-6C's and F-6D's over Germany on photographic mapping missions. The Mustangs remained in service until the early 1950's, when they were replaced by jet fighters.
Several P-51's were captured by the Luftwaffe as Beuteflugzeug (captured aircraft) following crash landings. These aircraft were subsequently repaired and test-flown by the Zirkus Rosarius, or Rosarius Staffel, the official Erprobungskommando of the Luftwaffe High Command, for combat evaluation at Göttingen. The aircraft were repainted with German markings and bright yellow nose and belly for identification. A number of P-51B/P-51C's (including examples marked with Luftwaffe Geschwaderkennung codes T9+CK, T9+FK, T9+HK and T9+PK) and three P-51D's were captured. Some of these P-51's were found by Allied forces at the end of the war; others crashed during testing. The Mustang is also listed in the appendix to the novel KG 200 as having been flown by the German secret operations unit KG 200, which tested, evaluated and sometimes clandestinely operated captured enemy aircraft during World War II.
The Fuerza Aérea Guatemalteca (FAG) had 30 P-51D Mustangs in service from 1954 to the early 1970s.
Haiti had four P-51D Mustangs when President Paul Eugène Magloire was in power between 1950 and 1956, with the last retired in 1973-74 and sold for spares to the Dominican Republic.
Indonesia acquired some P-51D's from the departing Netherlands East Indies Air Force in 1949 and 1950. The Mustangs were used against Commonwealth (RAF, RAAF and RNZAF) forces during the Indonesian confrontation in the early 1960's. The last time Mustangs were deployed for military purposes was a shipment of six Cavalier II Mustangs (without tip tanks) delivered to Indonesia in 1972–1973, which were replaced in 1976.
A few P-51 Mustangs were illegally bought by Israel in 1948, crated and smuggled into the country as agricultural equipment for use in the War of Independence (1948) and quickly established themselves as the best fighter in the Israeli inventory. Further aircraft were bought from Sweden, and were replaced by jets at the end of the 1950's, but not before the type was used in the Suez Crisis, Operation Kadesh (1956). Reputedly, during this conflict, one daring Israeli pilot literally cut communications between Suez City and the Egyptian front lines by using his Mustang's propeller on the telephone wires.
Italy was a postwar operator of P-51D's; deliveries were slowed by the Korean war, but between September 1947 and January 1951, by MDAP count, 173 examples were delivered. They were used in all the AMI fighter units: 2, 3, 4, 5, 6, and 51 Stormo (Wing), and some in schools and experimental units. Considered a "glamorous" fighter, P-51's were even used as personal aircraft by several Italian commanders. Some restrictions were placed on its use due to unfavorable flying characteristics. Handling had to be done with much care when fuel tanks were fully utilized and several aerobatic maneuvers were forbidden. Overall, the P-51D was highly rated even compared to the other primary postwar fighter in Italian service, the Supermarine Spitfire, partly because these P-51D's were in very good condition in contrast to all other Allied fighters supplied to Italy. Phasing out of the Mustang began in summer 1958.
The P-51C-11-NT Evalina, marked as "278" (former USAAF serial: AF 44-10816) and flown by 26th FS, 51st FG, was hit by gunfire on 16 January 1945 and belly-landed on Suchon Airfield in China, which was held by the Japanese. The Japanese repaired the aircraft, roughly applied Hinomaru roundels and flew the aircraft to the Fussa evaluation center (now Yokota Air Base) in Japan.
The Royal Netherlands East Indies Army Air Force received 40 P-51D's and flew them during the Indonesian National Revolution particularly the two 'politionele acties': Operatie Product in 1947 and Operatie Kraai in 1949. When the conflict was over, Indonesia received some of the ML-KNIL Mustangs.
Fuerza Aerea de Nicaragua (GN) purchased 26 P-51D Mustangs from Sweden in 1954 and later received 30 P-51D Mustangs from the U.S. together with two TF-51 models from MAP after 1954. All aircraft of this type were retired from service by 1964.
New Zealand ordered 370 P-51 Mustangs to supplement its F4U Corsairs in the Pacific Ocean Areas theater. Scheduled deliveries were for an initial batch of 30 P-51D's, followed by 137 more P-51D's and 203 P-51M's. The original 30 were being shipped as the war ended in August 1945; these were stored in their packing cases and the order for the additional Mustangs was cancelled. In 1951 the stored Mustangs entered service in 1 (Auckland), 2(Wellington), 3 (Canterbury) and 4 (Otago) squadrons of the Territorial Air Force (TAF). The Mustangs remained in service until they were prematurely retired in August 1955 following a series of problems with undercarriage and coolant system corrosion problems. Four Mustangs served on as target tugs until the TAF was disbanded in 1957. RNZAF pilots in the Royal Air Force also flew the P-51, and at least one New Zealand pilot scored victories over Europe while on loan to a USAAF P-51 squadron.
The Philippines acquired 103 P-51D Mustangs after World War II. These became the Backbone of the postwar Philippine Army Air Corps and Philippine Air Force and were used extensively during the Huk campaign, fighting against Communist insurgents. The tailwheels were fixed in the extended position. Mustangs were also the first aircraft of the Philippine air demonstration squadron, which was formed in 1953 and given the name "The Blue Diamonds" the following year. The Mustangs were replaced by 56 F-86 Sabres in the late 1950's, but some were still in service for COIN roles up to the early 1980's.
During World War II, five Polish Air Force in Great Britain squadrons used Mustangs. The first Polish unit equipped (7 June 1942) with Mustang Mk.I's was "B" Flight of 309 "Ziemi Czerwienskiej" Squadron (an Army Co-Operation Command unit), followed by "A" Flight in March 1943. Subsequently, 309 Squadron was redesignated a fighter/reconnaissance unit and became part of Fighter Command. On 13 March 1944, 316 "Warszawski" Squadron received their first Mustang Mk.III's; rearming of the unit was completed by the end of April. By 26 March 1943, 306 "Torunski" Sqn and 315 "Deblinski" Sqn received Mustangs Mk.III's (the whole operation took 12 days). On 20 October 1944, Mustang Mk.I's in No. 309 Squadron were replaced by Mk.III's. On 11 December 1944, the unit was again renamed, becoming 309 Dywizjon Mysliwski "Ziemi Czerwienskiej" or 309 "Land of Czerwien" Polish Fighter Squadron. In 1945, 303 "Kosciuszko" Sqn received 20 Mustangs Mk.IV/Mk.IVA replacements. Postwar, between 6 December 1946 and 6 January 1947, all five Polish squadrons equipped with Mustangs were disbanded. Poland returned approximately 80 Mustangs Mk.III's and 20 Mustangs Mk.IV/Mk.IVA's to the RAF, which transferred them to the U.S. government.
The Somalian Air Force operated eight P-51D's in post-World War II service.
South African Air Force operated a number of Mustang Mk.III's (P-51B/C) and Mk.IV's (P-51D/K) in Italy during World War II, beginning in September 1944 when the squadron converted to the Mustang Mk.III from Kittyhawks. The Mk.IV and Mk.IVA came into SA service in March 1945. These aircraft were generally camouflaged in the British style, having been drawn from RAF stocks; all carried RAF serial numbers and were struck off charge and scrapped in October 1945. In 1950, 2 Squadron SAAF was supplied with F-51D Mustangs by the United States for Korean War service. The type performed well in South African hands before being replaced by the F-86 Sabre in 1952 and 1953.
Within a month of the outbreak of the Korean War, 10 F-51D Mustangs were provided to the badly depleted Republic of Korea Air Force as a part of the Bout One Project. They were flown by both South Korean airmen, several of whom were veterans of the Imperial Japanese Army and Navy air services during World War II, as well as by U.S. advisers led by Major Dean Hess. Later, more were provided both from U.S. and from South African stocks, as the latter were converting to F-86 Sabres. They formed the Backbone of the South Korean Air Force until they were replaced by Sabres. It also served with the ROKAF Black Eagles aerobatic team, until retired 1954.
Sweden's Flygvapnet first recuperated four of the P-51's (two P-51B's and two early P-51D's) that had been diverted to Sweden during missions over Europe. In February 1945, Sweden purchased 50 P-51D's designated J.26, which were delivered by American pilots in April and assigned to the F 16 wing at Uppsala as interceptors. In early 1946, the F 4 wing at östersund was equipped with a second batch of 90 P-51D's. A final batch of 21 Mustangs was purchased in 1948. In all, 161 J.22's served in the Swedish Air Force during the late 1940's. About 12 were modified for photo reconnaissance and re-designated S.26. Some of these aircraft participated in the secret Swedish mapping of new Soviet military installations at the Baltic coast in 1946-47 (Operation Falun), an endeavor that entailed many intentional violations of Soviet airspace. However, the Mustang could outdive any Soviet fighter of that era, so no S.22's were lost in these missions. The J.22's were replaced by De Havilland Vampires around 1950. The S.22's were replaced by S.29C's in the early 1950's.
The Swiss Air Force operated a few USAAF P-51's that had been impounded by Swiss authorities during World War II after the pilots were forced to land in neutral Switzerland. After the war, Switzerland also bought 130 P-51's for $4,000 each. They served until 1958.
The RAF was the first air force to operate the Mustang. Because the first Mustangs were built to British requirements, these aircraft used factory numbers and were not P-51's; the order comprised 320 NA-73's, followed by 300 NA-83s, all of which were designated North American Mustang Mark I's by the RAF. The first RAF Mustangs diverted from American orders were 93 P-51's, designated Mark IA, followed by 50 P-51A's used as Mustang II's. The first Mustang Mk.I's entered service in 1941 the first unit being 2 Squadron RAF. Due to poor high-altitude performance, the Mustangs were used by Army Co-operation Command, rather than Fighter Command, and were used for tactical reconnaissance and ground-attack duties. On 27 July 1942, 16 RAF Mustangs undertook their first long-range reconnaissance mission over Germany. During Operation Jubilee (19 August 1942) four British and Canadian Mustang squadrons, including 26 Squadron saw action. By 1943/1944, British Mustangs were used extensively to seek out V-1 flying bomb sites. The final RAF Mustang Mk.I and Mustang Mk.II aircraft were struck off charge in 1945. The RAF also operated a total of 308 P-51B's and 636 P-51C's which were known in RAF service as Mustang Mk.III's; the first units converted to the type in late 1943 and early 1944. Mustang Mk.III units were operational until the end of World War II, though many units had already converted to the Mustang Mk.IV and Mk.IVA's (828 in total, comprising 282 P-51D-NA's or Mk.IV's, and 600 P-51K's or Mk.IVA). As the Mustang was a Lend-Lease type, all aircraft still on RAF charge at the end of the war were either returned to the USAAF "on paper" or retained by the RAF for scrapping. The final Mustangs were retired from RAF use in 1947.
The Soviet Union received at least 10 early-model ex-RAF Mustang I's and tested but found them to "under-perform" compared to contemporary USSR fighters, relegating them to training units. Later Lend-Lease deliveries of the P-51B/C and D series along with other Mustangs abandoned in Russia after the famous "shuttle missions" were repaired and used by the Soviet Air Force, but not in front-line service.
The Uruguayan Air Force (FAU) used 25 P-51D Mustangs from 1950 to 1960—some were subsequently sold to Bolivia.
P-51's and Civil Aviation
Many P-51's were sold as surplus after the war, often for as little as $1,500. Some were sold to former wartime fliers or other aficionados for personal use, while others were modified for air racing.
One of the most significant Mustangs involved in air racing was a surplus P-51C-10-NT (AF 44-10947) purchased by film stunt pilot Paul Mantz. The aircraft was modified by creating a "wet wing", sealing the wing to create a giant fuel tank in each wing, which eliminated the need for fuel stops or drag-inducing drop tanks. This Mustang, called Blaze of Noon, came in first in the 1946 and 1947 Bendix Air Races, second in the 1948 Bendix, and third in the 1949 Bendix. He also set a U.S. coast-to-coast record in 1947. The Mantz Mustang was sold to Charles F. Blair Jr (future husband of Maureen O'Hara) and renamed Excalibur III. Blair used it to set a New York-to-London (c. 3,460 mi/5,568 km) record in 1951: 7 hrs 48 min from takeoff at Idlewild to overhead London Airport. Later that same year, he flew from Norway to Fairbanks, Alaska, via the North Pole (c. 3,130 mi/5,037 km), proving that navigation via sun sights was possible over the magnetic north pole region. For this feat, he was awarded the Harmon Trophy, and the Air Force was forced to change its thoughts on a possible Soviet air strike from the north. This Mustang now resides in the National Air and Space Museum at Steven F. Udvar-Hazy Center.
The most prominent firm to convert Mustangs to civilian use was Trans-Florida Aviation, later renamed Cavalier Aircraft Corporation, which produced the Cavalier Mustang. Modifications included a taller tailfin and wingtip tanks. A number of conversions included a Cavalier Mustang specialty: a "tight" second seat added in the space formerly occupied by the military radio and fuselage fuel tank.
In 1958, 78 surviving RCAF Mustangs were retired from service's inventory and were ferried by Lynn Garrison an RCAF pilot, from their varied storage locations to Canastota, New York where the American buyers were based. In effect, Garrison flew each of the surviving aircraft at least once. These aircraft make up a large percentage of the aircraft presently flying worldwide.
In the late 1960's and early 1970's, when the United States Department of Defense wished to supply aircraft to South American countries and later Indonesia for close air support and counter insurgency, it turned to Cavalier to return some of their civilian conversions Back to updated military specifications.
In the 21st century a P-51 can command a price of more than $1 million, even for only partially restored aircraft. According to the FAA there are 204 privately owned P-51's in the U.S., most of which are still flying, often associated with organizations such as the Commemorative Air Force (formerly the Confederate Air Force).
On 16 September 2011, The Galloping Ghost, a modified P-51 piloted by Jimmy Leeward of Ocala, Florida, crashed during an air race in Reno, Nevada. Leeward and at least nine people on the ground were killed when the racer suddenly crashed near the edge of the grandstand.
NA-73X: The initial prototype was designated the NA-73X by the manufacturer, North American Aviation.
Mustang Mk.I (NA-73 and NA-83): The first production contract was awarded by the British for 320 NA-73 fighters. A second British contract for 300 more Mustang Mk.I's was assigned a model number of NA-83 by North American. The RAF mostly used its Allison-engine Mustangs as tactical-photo reconnaissance fighters, fitting many of its Mustang I, IA and II variants with camera equipment.
XP-51: Two aircraft of this lot delivered to the USAAF were designated XP-51.
P-51 (NA-91): In September 1940 150 aircraft were ordered by the USAAF. These were designated by the USAAF as P-51 and initially named the "Apache," although this name was dropped early-on for "Mustang." The British designated this model as Mustang Mk.IA. They were equipped with four long-barrelled 20 mm (.79 in) Hispano Mk II cannon instead of machine guns. Following British practice, a number of aircraft from this lot were fitted out by the USAAF as tactical-photo reconnaissance fighters designated F-6A.
A-36A "Apache" (NA-97): In early 1942, the USAAF ordered a lot of 500 aircraft modified as dive bombers and designated A-36A. This model became the first USAAF Mustang to see combat. One aircraft was passed to the British, who gave it the name Mustang Mk.I (Dive Bomber).
P-51A (NA-99): Following the A-36A order, the USAAF ordered 310 P-51A's, fifty of which were delivered to the RAF as Mustang Mk.II's. 35 P-51A's were equipped with K-24 cameras and designated F-6B. All these models of the Mustang were equipped with Allison V-1710 engines except the prototype XP-51B.
XP-51B (NA-101): Two USAAF ordered P-51's had been allocated to be fitted and tested with Packard-Merlins; these were first called XP-78's by the USAAF, but were soon re-designated as XP-51B's.
P-51B (NA-102): Beginning with this model the Packard V-1650-3 replaced the Allison, although from the P-51B-10-NA series the V-1650-7 was used. Almost 2,000 P-51B's were built.
P-51C (NA-103): In the summer of 1943, Mustang production was begun at a new plant in Dallas, Texas, as well as at the existing facility in Inglewood, California. The P-51C version mainly used the medium-altitude rated V-1650-7. The RAF named these models Mustang Mk.III. 1,750 P-51C's were built. The RAF also used P-51B's and P-51C's, designating them Mustang Mk.III's. A number of P-51B's and P-51C's were modified as tactical-photo reconnaissance fighters and re-designated as F-6C's.
P-51D (NA-106): A P-51B-1-NA (AF 43-12102) was modified and tested with a cut down rear fuselage and clear-blown canopy structure, becoming the fore-runner of the production P-51D's.
P-51D (NA-109): As well as the modified fuselage and new canopy the production P-51D's had modified wings compared with the P-51B/P-51C series and became the most widely produced variant of the Mustang, with 6,502 being built at Inglewood and 1,600 at Dallas, a combined total of 8,102. 280 were used by the RAF and designated Mustang Mk.IV.
P-51K: A Dallas-built variation of the P-51D equipped with an Aeroproducts propeller in place of the Hamilton Standard propeller was designated P-51K; 1,500 of these were built. The RAF received 594 P-51K's and assigned them the name Mustang Mk.IVA.
F-6D: 136 Dallas built P-51D's were converted to photo-reconnaissance versions designated F-6D.
F-6K: The photo-reconnaissance versions of the P-51K, of which 163 were built, was designated F-6K.
P-51F: As the USAAF specifications required airframe design to a higher load factor than that used by the British for their fighters, consideration was given to re-designing the Mustang to the lower British requirements in order to reduce the weight of the aircraft and thus improve performance. In 1943, North American submitted a proposal to do the re-design as model NA-105, which was accepted by the USAAF. The designation XP-51F was assigned for prototypes powered with V-1650 engines. A small number of P-51F's were passed to the British as the Mustang Mk.V.
XP-51G: XP-51G was assigned to those variants with reverse lend/lease Merlin 145M engines. Modifications included changes to the cowling, a simplified undercarriage with smaller wheels and disk brakes, and a larger canopy.
XP-51J: A third prototype was added to the development that was powered by an Allison V-1710 engine. This aircraft was designated XP-51J. As the engine was insufficiently developed, the XP-51J was loaned to Allison for engine development.
P-51H: The final production Mustang, the P-51H, embodied the experience gained in the development of the lightweight XP-51F and XP-51G aircraft. This aircraft, model NA-126, and, with minor differences, NA-129, came too late to participate in World War II, but it brought the development of the Mustang to a peak and was one of the fastest production piston-engine fighters to see service. The P-51H used the Merlin V-1659-9 engine, equipped with Simmons automatic boost control and water injection, allowing War Emergency Power as high as 2,218 hp (1,654 kW). Some of the weight savings inherited from the XP-51F and XP-51G were invested in lengthening the fuselage and increasing the height of the tailfin, greatly reducing the tendency to yaw, and in restoring the fuselage fuel tank. The canopy was changed Back to more nearly resemble the P-51D style, over a somewhat raised pilot's position. Service access to the guns and ammunition was improved. The P-51H was designed to complement the P-47N as the primary aircraft for the invasion of Japan, and 2,000 were ordered to be built at the Inglewood plant. With the solution to the problem of yaw control, the P-51H was now considered a suitable candidate for testing as an aircraft carrier-based fighter; but with the end of the war, the testing was cut short, and production was halted after 555 aircraft were built. Although some P-51H's were issued to operational units, none saw combat. One aircraft was given to the RAF for testing and evaluation. Serial number AF 44-64192 was re-serialed as BuNo 09064 and used by the U.S. Navy to test transonic airfoil designs, then returned to the Air National Guard in 1952. The P-51H was not used for combat in the Korean War despite its improved handling characteristics, due to the lack of experience with durability of the lighter airframe under combat conditions as well as limited numbers in the USAF inventory.
P-51L: With the cutBack in production, the variants of the P-51H with different versions of the Merlin engine were produced in either limited numbers or terminated, including the P-51L, similar to the P-51H but utilizing the 2,270 hp (1,690 kW) V-1650-11 engine, which was never built.
P-51M: The Dallas-built version of the P-51H, the P-51M, or NA-124, which utilized the V-1650-9A engine lacking water injection and therefore rated for lower maximum power, of which one was built out of the original 1629 ordered, AAF Serial Number AF 45-11743.
F-51: Redesignation of all P-51's in 1947 in the U.S. Air Force, Air Force Reserve and Air National Guard following establishment of the U.S. Air Force as a separate service.
TF-51D: Twin seat/dual control version of the F-51 with four versus six guns.
Trans-Florida Executive Mustang:
XR-51D: A Unofficial designation to the heavily modified P-51D Reno Air Racer "Precious Metal". Powered by an estimated 3,200 horsepower Griffon, the aircraft came in number four in the 2012 Reno Air Races, behind Strega, September Fury, and Rare Bear, respectively. The XR designation, created by the race crew, signifies the specially designed counter rotating 3-Blade propellers. "Precious Metal" is the only P-51 of its kind flying in the world.
Cavalier Mustang II:
Cavalier Turbo Mustang III:
Piper PA-48 Enforcer:
Specifications NA-73 (XP-51/Mustang Mk.I) 4,5
- Low-wing cantilevered monoplane.
- Consists of two wing sections with removable tips.
- Wing structure comprising wing-spars and ribs are aluminum-alloy construction with flush-riveted smooth stressed skin.
- Slotted trailing-edge flaps between the ailerons and the sides of the fuselage.
- Aluminum-alloy monocoque construction.
- The fuselage is divided into two detachable units for ease of repair and maintenance.
- Cantilever monoplane type.
- Aluminum-alloy structure with fixed surfaces metal-covered and movable surfaces fabric-covered.
- Adjustable trimming-tabs in elevators and rudder.
- Retractable cantilever single-leg half-fork type.
- Wheels are raised inwardly into undersides for fuselage.
- Hydraulic retraction.
- Air-oil shock-absorbers.
- Hydraulically-operated differential brakes and parking brakes.
- Full-swiveling tail-wheel.
- One 1,150-hp Allison V-1710-39 twelve-cylinder vee liquid-cooled engine equipped with a ramming air intake. 5
- Ducted radiator beneath fuselage aft of pilot's cockpit.
- Curtiss 3-blade constant-speed airscrew. 5
- Two fuel tanks integral with wing structure, 180 US gal (681.4 liters) total capacity. 5
- Oil tank 12.1 US gal (45.8 liters) is located in an accessible position forward of the fireproof bulkhead.
- Enclosed pilot's cockpit over trailing-edge of the wing.
- Canopy over pilot is hinged and opens to starboard.
- The door on the left is hinged to open forward.
- Sliding sections are provided in the door for partial opening of the enclosure.
- Provision for installation of camera behind pilot in RAF "Mustang" version.
- Eight machine guns: two 0.50-in below the engine and one 0.50-in and two 0.30-in guns in each wing.
- Wing span: 37 ft 0.3 in (11.29 m)
- Length: 32 ft 3 in (9.835 m)
- Height: 11 ft 9 in (3.58 m)
- Wing area: 235.75 ft² (21.90 m²)
- Weight, empty: 6,270 lb (2844 kg)
- Weight, loaded with 180 US-gal (681.4 liters) in wing tanks: 7,908 lb (3,587 kg)
- Cruising speed: 325 mph (523 km/h)
- Maximum speed: 375 mph (603.5 km/h)
- Landing speed: 83 mph (133.6 km/h)
- Climb rate: 2,100 ft/min (640.1 m/min)
- Service ceiling: 31,000 ft (9,448.8 m)
- Range: 640 - 1,022 miles (1,030 - 1,645 km)
- Photos, John Shupek, Copyright © 2003 Skytamer Images. ALL RIGHTS RESERVED
- Wikepedia, the free encyclopedia, North American P-51 Mustang
- Wikepedia, the free encyclopedia, North American P-51 variants
- Bridgman, Leonard (ed.), "The North American NA-73 'Mustang'," Jane's All The World's Aircraft 1942, New York: The MacMillan Company, 1943, pp 203c
- Avery, Norm, North American Aircraft 1934-1998, Volume 1, Santa Ana, CA: Narkiewicz//Thompson, 1998, ISBN 0-913322-05-9, pp 114
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