(Grumman) F9F Panther @·AIRCRAFTUBE

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Grumman F9F Panther

The Grumman F9F Panther was the manufacturer's first jet fighter and the U.S. Navy's second. The Panther was the most widely used U.S. Navy jet fighter of the Korean War. It flew 78,000 sorties and was responsible for the first air kill in the war-the downing of a North Korean Yakovlev Yak-9 fighter. Total F9F production was 1,382, with several variants being shipped to Argentina for export.

Development studies at the Grumman company began near the end of the World War II as the first jet engines emerged. The prototype Panther, piloted by test pilot Corky Meyer, first flew on 24 November 1947. Propulsion was a Rolls-Royce Nene turbojet built under license by Pratt & Whitney as the J42. Since there was insufficient space within the wings and fuselage for fuel for the thirsty jet, permanently-mounted wingtip fuel tanks were added which incidentally improved the fighter's rate of roll. It was cleared for flight from aircraft carriers in September 1949. During the development phase, Grumman decided to change the Panther's engine, selecting the Pratt & Whitney J48-P-2, a license built version of the Rolls-Royce Tay. The other engine that had been tested was the Allison J33-A-16, a development of the Rolls-Royce Derwent.

Operational history

F9F-2s, F9F-3s and F9F-5s served with distinction in the Korean War, downing two Yak-9s and five Mikoyan-Gurevich MiG-15s with a loss of one F9F. On 3 July 1950, LTJG Leonard H. Plog of U.S. Navy's VF-51 flying an F9F-3 scored the first air victory of the war by shooting down a Yak-9. The first MiG-15 downed was on 9 November 1950 by U.S. Navy Lieutenant Commander William (Bill) Amen of VF-111 "Sundowners" Squadron flying an F9F-2B. Two more were downed on 18 November 1950, and the other two were downed on the 18 November 1952. The type was the primary Navy jet fighter and ground-attack plane in the Korean conflict.

Panthers were withdrawn from front-line service in 1956, but remained in training roles and with Reserve units until 1958, some continuing to serve in small numbers into the 1960s.

The only foreign buyer of the Panther was the Argentine Navy, who bought 24 ex-USN aircraft in 1958. The catapults on the then only Argentine carrier, ARA Independencia (V-1), were considered not powerful enough to launch the F9F, so the aircraft were land-based.

The Argentine Panthers were involved in the general mobilization during the 1965 border clash between Argentina and Chile but no combat occurred. They were taken out of service in 1969 due to the lack of spare parts and replaced with A-4Q Skyhawks.

Variants

  • XF9F-2: The first two prototypes
  • XF9F-3: The third prototype
  • F9F-2: First production version, powered by J42 engine.
  • F9F-2B: Version fitted with underwing racks for bombs and rockets. All F9F-2s were eventually so modified, and the B designation was dropped.
  • F9F-2P: Unarmed photographic reconnaissance version used in Korea.
  • F9F-3: Allison J33 powered version produced as insurance against the failure of the J42, 54 built. All converted to J42 power later.
  • XF9F-4: Prototype used in the development of the F9F-4.
  • F9F-4: Version with longer fuselage with greater fuel load and powered by J33 engine. Most re-engined with J42s. F9F-4s were the first aircraft to successfully employ blown air, extracted from between the engine's compressor and combustion chambers, to energise the slot flaps, thus achieving a decrease in stalling speed of 9kt for takeoff and 7kt on power approach for landing.
  • F9F-5: Variant of F9F-4, but powered by Pratt & Whitney J48 engine, 616 built.
  • F9F-5P: Unarmed photo-reconnaissance version, 36 built, longer nose.
  • F9F-5KD: After the F9F Panther was withdrawn operational service, a number of F9F-5s were converted into unmanned target drone aircraft. Redesignated DF-9E in 1962.

Continued development

From 1946, a swept-wing version was considered and after concerns about the Panther's inferiority to its MiG opponents in Korea, a conversion of the Panther (Design 93) resulted in a swept-wing derivative of the Panther, the Grumman F9F Cougar, which retained the Panther's designation number.

The Panther in film

The Panther played a prominent role in the 1954 movie Men of the Fighting Lady (also known as Panther Squadron). The F9F was featured in the flying sequences in the 1955 movie The Bridges at Toko-Ri, although in the 1953 James A. Michener novel upon which the movie was based, the main character flew an F2H Banshee.

Operators

  • Argentine Navy.
  • United States Navy.
  • United States Marine Corps.

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This text is available under the Creative Commons Attribution-ShareAlike License
Source : Article Grumman F9F Panther of Wikipedia ( authors )

Specifications (F9F-2 Panther)

  • Length : 37 ft 5 in (or 11.3 m).
  • Height : 11 ft 4 in (or 3.8 m).
  • Wingspan : 38 ft (or 11.6 m).
  • Wing area : 250 sq ft (or 23 m²).
  • Wing loading : 71 lb/sq ft (or 350 kg/m²).
  • Empty weight : 9,300 lb (or 4,220 kg).
  • Loaded weight : 14,235 lb (or 6,456 kg).
  • Max takeoff weight : 16,450 lb (or 7,462 kg).
  • Powerplant : One Pratt & Whitney J42-P-6/P-8 turbojet.
  • Thrust : 5,950 lbf (or 26.5 kN) with water injection.
  • Maximum speed : 500 kts (or 575 mph, or 925 km/h).
  • Range : 1,300 mi (or 1,100 nm, or 2,100 km).
  • Service ceiling : 44,600 ft (or 13,600 m).
  • Rate of climb : 5,140 ft/min (or 26.1 m/s).
  • Thrust/weight : 0.42.
  • Armament : Four 20 mm (or 0.787 in) M2 cannons, 190 rounds/gun. Underwing hardpoints with provisions to carry combinations of six 5 in (or 127 mm) rockets on underwing hardpoints or 2,000 lb (910 kg) of bombs.

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This text is available under the Creative Commons Attribution-ShareAlike License
Source : Article Grumman F9F Panther of Wikipedia ( authors )
Grumman F9F Panther : Your comments on this subject
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