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Grumman F9F Panther
The Grumman F9F Panther is an early carrier-based jet fighter designed and produced by the American aircraft manufacturer Grumman. It was the first jet-powered fighter aircraft to see air-to-air combat with the United States Navy as well as being Grumman’s first jet fighter.
Development of the Panther commenced in the final months of World War II to harness the recent innovation of the jet engine. Grumman designed a single-engined, straight-winged day fighter that was armed with four 20 mm (0.79 in) cannons and could also carry a wide assortment of air-to-ground munitions. Production aircraft were typically powered by a single Allison J33 or Pratt & Whitney J48-P-2 turbojet engine. On 21 November 1947, the prototype performed its maiden flight, powered by an imported Rolls-Royce Nene engine. During September 1949, the F9F was cleared for flight from aircraft carriers.
The Panther was used extensively by the U.S. Navy and Marine Corps in the Korean War. On 3 July 1950, a F9F-3 recorded the first U.S. Navy air victory of the conflict, having shot down a propeller-powered Yak-9. In the Korean theatre, Panther pilots cumulatively claimed the shooting down of seven Mikoyan-Gurevich MiG-15s. During 1956, the type was withdrawn from front-line combat service, but remained in secondary roles, such as for training and with U.S. Naval Air Reserve and U.S. Marine Air Reserve units, until 1958. The Panther was also the first jet aircraft used by the Blue Angels aerobatics demonstration team, being flown in this capacity from 1949 through to late 1954. Future astronauts Neil Armstrong and John Glenn both flew the F9F extensively during the Korean War.
While Australia was interested in the Panther during the late 1940s, the nation ultimately opted for the Gloster Meteor F.8 and the CAC Sabre instead. The aircraft's only export customer was Argentina, where it became the first jet aircraft to be operated by the Argentine Naval Aviation. It was operated mainly from land, as the catapults of the aircraft carrier ARA Independencia lacked sufficient power to readily launch the F9F. Several Panthers participated in the 1963 Argentine Navy Revolt, firing upon Argentine Army forces sent to quell the revolt. During 1969, it was withdrawn from Argentine service due to a lack of spare parts.
Grumman would develop the F9F design in response to U.S. Navy interest, producing the swept wing Grumman F-9 Cougar.
The origins of the Panther can be traced back to development studies performed by Grumman into jet-powered fighter aircraft near the end of World War II. The company was keen to capitalise on the emergence of the first practical jet engines by integrating them into a new aircraft design. This design, which was internally designated G-75, was submitted to a United States Navy competition that sought a jet-powered night fighter to equip its aircraft carriers with. However, on 3 April 1946, it was announced that the Douglas F3D Skyknight, a competing two-seat aircraft powered by four Westinghouse J30 turbojets, had been selected. On 11 April 1946, the Navy's Bureau of Aeronautics (BuAer) issued a development contract to Grumman to produce a pair of G-75 prototypes, which were given the Navy designation XF9F-1, in case development of the Skyknight encountered severe problems.
Shortly thereafter, Grumman recognised that the G-75 did not have much potential for either performance or growth; the company had already undertaken work on a completely different single-engine day fighter, the G-79. In a bureaucratic maneuver, BuAer opted not to cancel the G-75 contract, but instead changed the wording to include three prototypes of the entirely different G-79. It was this design that became the Panther.
At that time, the few American engines that were available for use, such as the Allison J33 and Westinghouse J34, were not considered to be sufficiently reliable; thus, the Navy specified the imported Rolls-Royce Nene turbojet, which was also more powerful, at 5,000 lbf (22 kN) of thrust. Production aircraft were to also be powered by the Nene, built under license by Pratt & Whitney as the J42. Since there was insufficient space within the wings and fuselage to provide sufficient fuel for the thirsty jet engine, the design team opted to add permanently mounted wingtip fuel tanks, which had incidental advantage of improving the fighter's rate of roll. The wings featured another innovation in the form of leading edge flaps that generated additional lift while landing; speed brakes were also present on the underside of the fuselage.
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Grumman F9F Panther
The Grumman F9F Panther is an early carrier-based jet fighter designed and produced by the American aircraft manufacturer Grumman. It was the first jet-powered fighter aircraft to see air-to-air combat with the United States Navy as well as being Grumman’s first jet fighter.
Development of the Panther commenced in the final months of World War II to harness the recent innovation of the jet engine. Grumman designed a single-engined, straight-winged day fighter that was armed with four 20 mm (0.79 in) cannons and could also carry a wide assortment of air-to-ground munitions. Production aircraft were typically powered by a single Allison J33 or Pratt & Whitney J48-P-2 turbojet engine. On 21 November 1947, the prototype performed its maiden flight, powered by an imported Rolls-Royce Nene engine. During September 1949, the F9F was cleared for flight from aircraft carriers.
The Panther was used extensively by the U.S. Navy and Marine Corps in the Korean War. On 3 July 1950, a F9F-3 recorded the first U.S. Navy air victory of the conflict, having shot down a propeller-powered Yak-9. In the Korean theatre, Panther pilots cumulatively claimed the shooting down of seven Mikoyan-Gurevich MiG-15s. During 1956, the type was withdrawn from front-line combat service, but remained in secondary roles, such as for training and with U.S. Naval Air Reserve and U.S. Marine Air Reserve units, until 1958. The Panther was also the first jet aircraft used by the Blue Angels aerobatics demonstration team, being flown in this capacity from 1949 through to late 1954. Future astronauts Neil Armstrong and John Glenn both flew the F9F extensively during the Korean War.
While Australia was interested in the Panther during the late 1940s, the nation ultimately opted for the Gloster Meteor F.8 and the CAC Sabre instead. The aircraft's only export customer was Argentina, where it became the first jet aircraft to be operated by the Argentine Naval Aviation. It was operated mainly from land, as the catapults of the aircraft carrier ARA Independencia lacked sufficient power to readily launch the F9F. Several Panthers participated in the 1963 Argentine Navy Revolt, firing upon Argentine Army forces sent to quell the revolt. During 1969, it was withdrawn from Argentine service due to a lack of spare parts.
Grumman would develop the F9F design in response to U.S. Navy interest, producing the swept wing Grumman F-9 Cougar.
The origins of the Panther can be traced back to development studies performed by Grumman into jet-powered fighter aircraft near the end of World War II. The company was keen to capitalise on the emergence of the first practical jet engines by integrating them into a new aircraft design. This design, which was internally designated G-75, was submitted to a United States Navy competition that sought a jet-powered night fighter to equip its aircraft carriers with. However, on 3 April 1946, it was announced that the Douglas F3D Skyknight, a competing two-seat aircraft powered by four Westinghouse J30 turbojets, had been selected. On 11 April 1946, the Navy's Bureau of Aeronautics (BuAer) issued a development contract to Grumman to produce a pair of G-75 prototypes, which were given the Navy designation XF9F-1, in case development of the Skyknight encountered severe problems.
Shortly thereafter, Grumman recognised that the G-75 did not have much potential for either performance or growth; the company had already undertaken work on a completely different single-engine day fighter, the G-79. In a bureaucratic maneuver, BuAer opted not to cancel the G-75 contract, but instead changed the wording to include three prototypes of the entirely different G-79. It was this design that became the Panther.
At that time, the few American engines that were available for use, such as the Allison J33 and Westinghouse J34, were not considered to be sufficiently reliable; thus, the Navy specified the imported Rolls-Royce Nene turbojet, which was also more powerful, at 5,000 lbf (22 kN) of thrust. Production aircraft were to also be powered by the Nene, built under license by Pratt & Whitney as the J42. Since there was insufficient space within the wings and fuselage to provide sufficient fuel for the thirsty jet engine, the design team opted to add permanently mounted wingtip fuel tanks, which had incidental advantage of improving the fighter's rate of roll. The wings featured another innovation in the form of leading edge flaps that generated additional lift while landing; speed brakes were also present on the underside of the fuselage.