Tn-1 Tn-2

Grumman Cougar - $4.95

Based on the earlier Grumman F9F Panther, the Cougar replaced the Panther's straight wing with a more modern swept wing. The Navy considered the Cougar an updated version of the Panther, despite having a different official name, and thus Cougars started off from F9F-6 upwards.

Grumman F9F Cougar downloadable cardmodel

Grumman F9F-8 Cougar Carrier Jet

Grumman F9F Cougar

Grumman F9F-8 Cougar

The F9F Cougar was created by a simple expedient: Grumman took its proven, straight-wing Panther, which had been among the US Navy's first jet fighters, and redesigned it with sweptback wings. The result was two generations of Cougars which arrived late, long after the swept-wing North American F-86 Sabre was already in combat. Cougars served briefly as carrier-based fighters and were also used for training assignments.

Swept-back wings were the key to the success of the Grumman F9F Cougar, permitting higher speeds and better performance to be derived from the earlier F9F Panther design. Throughout the Korean War, pilots of straightwinged F9F Panthers watched helplessly as swept-wing Sabres and MiG-ISs fought at higher speeds than they could reach. Naval aviators were delighted when Grumman went ahead with the much improved Cougar in 1951.

Cougars served aboard aircraft-carriers from 1953, but the combat role for this aircraft was short-lived. The F9F-8P was a special photographic reconnaissance version, and the F9F also displayed with the 'Blue Angels' aerobatic team. F9F-8 fighters even had a small ranging radar. Most US Navy pilots remember the Cougar because of the two-seat training TF-9J developed in the late 1950.

A few two-seaters flew observation missions in Vietnam, but the two-seater is famous because it was the US Navy's advanced pilot trainer for more than two decades, some flying until 1974. A few were converted to serve as unmanned drones.


What people say...

A word from Rob... There are four versions, plus the B&W redraw. Cougars were some of the most colorful planes in the Navy's inventory in the fifties and sixties, and I've chosen several colorful versions.


 

Grumman F9F-8 Cougar

Grumman F9F Cougar Rendering

Grumman F9F CougarThe Navy's first operational carrier fighter to utilize the new high-speed sweptback wing configuration was Grumman's F9F-6 Cougar. Obviously a derivation of the Panther series, the Cougar was ordered on March 2, 1951, to provide the Navy with a weapon to combat the swept-winged MiG-15's being encountered in Korea. During the original planning of the Panther, Grumman had studied the effects of the raked wing and it was determined that they could be easily incorporated into the basic design. As a result, the prototype Cougar was completed in six months, first flying on September 20, 1951. Even less time was required for the initial production plane, this making its debut only five months later.

Accompanying the Cougar's wing change was an increase of 1,000 lbs. of thrust from a Pratt & Whitney J48-P-8 rated at 7,250 lbs. These factors gave the 706 F9F-6 Cougars an 85 mph increase over the Panther series. The second Cougar order gave the fighter a 6,350 lb. thrust Allison J33-A-16A, but water injection increased the rate to 7,000 lbs. One hundred sixty eight of these F9F-7's were delivered.

The Cougar lived up to its expectations and its advancement over the Panther was obvious. But it was felt that the swept-wing design was still at the low end of its development cycle. One area needing improvement was the low speed handling characteristics. This directed attention to the wings which were given wider outer panels and a cambered leading edge eliminating the slats. An increase to the trailing edge gave a thinner wing section raising the critical Mach number. Reworking the wing had the added benefit of increasing the fuel capacity. Lengthening the fuselage improved the fineness ratio and also allowed for another fuel tank, adding a total of 140 more gallons to the Cougar's capacity. As the F9F-8, the first of the revised fighters flew on December 18, 1953, and displayed a high speed of 714 mph - a difference of 24 mph over the F9F-7. This merited an order for 711 more F9F-8 Cougars making the type the most prevalent jet fighter in the Navy at the time. Grumman Cougar Blue Angel

Extension of the fuselage by 2 feet 10 inches and the addition of a second seat gave the Navy the F9F-8T, its first swept- winged trainer. Grumman built 399 of this model which had a maximum speed of 705 mph.

Other versions of the F9F-8 were the camera-equipped F9F-8P's and the F9F-8B missile platform capable of launching four air-to-air missiles. Many cougars were fitted with refueling probes to extend their range to the requirements of their specific missions. On their retirement from front line duty, the Cougars continued serving as radio-controlled drones and drone controllers. These were usually redesignated QF-9's in keeping with the new classification.

The definitive F9F-8 Cougar had a wingspan of 34 feet 6 inches, length of 40 feet 10 inches and a height of 15 feet. Maximum launch weight was 20,000 pounds, service ceiling was 50,000 feet. Fixed armament was four 20 mm M3 cannons, and up to 3,000 pounds of bombs could be hauled on the underwing racks.


In 1951 the US Navy accepted Grumman's proposal for a swept-wing version of the F9F Panther, and this first flew in September 1951 as the XF6F-6 with a 3289-kg 17,250-Ib) J48P-8 and a new 35degree swept wing carrying larger flaps, fences, leading-edge slats and spoilers in place of ailerons. Service deliveries of 706 F9F-6s began in November 1952, and this total included 60 F9F-6P reconnaissance aircraft.

Grumman CougarThe 168 F9F-7s were identical to the F9F-6s apart from their Allison J33-A-t6A turbojets. Then came 712 F8F-8s with the wing redesigned for an effective 15 per cent increase in chord, a re contoured cockpit canopy and a 20.3-cm 18-in) increase in fuselage length to provide additions fuel volume; the F9F-8 total included F8F-9B attack version with missile armament, and 110 F9F-8P reconnaissance aircraft. There were also 399 F9F-8T tandem-seat trainers.

The Navy's first operational carrier fighter to utilize the new high-speed sweptback wing configuration was Grumman's F9F-6 Cougar. Obviously a derivation of the Panther series, the Cougar was ordered on March 2,1951, to provide the Navy with a weapon to combat the swept-winged MiG15's being encountered in Korea. During the original planning of the Panther, Grumman had studied the effects of the raked wing and it was determined that they could be easily incorporated into the basic design. As a result, the prototype Cougar was completed in six months, first flying on September 20, 1951. Even less time was required for the initial production plane, this making its debut only five months later.

Grumman CougarAccompanying the Cougar's wing change was an increase of 1,000 lbs. of thrust from a Pratt & Whitney J48-P-8 rated at 7,250 lbs. These factors gave the 706 F9P-6 Cougars an 85 mph increase over the Panther series. The second Cougar order gave the fighter a 6,350 lb. thrust Allison J33.A-16A, but water injection increased the rate to 7,000 lbs. One hundred sixty eight of these F9F-7's were delivered.

The Cougar lived up to its expectations and its advancement over the Panther was obvious. But it was felt chat the swept-wing design was still at the low end of its development cycle. One area needing improvement was the low speed handling characteristics, This directed attention to the wings which were given wider outer panels and a cambered leading edge eliminating the slats. An increase to the trailing edge gave a thinner wing section raising the critical Mach number. Reworking the wing had the added benefit of increasing the fuel capacity. Lengthening the fuselage improved the fineness ratio and also allowed for another fuel tank, adding a total of 140 more gallons to the Cougar's capacity. As the F9F~8, the first of the revised fighters flew on December 18, 1953, and displayed a high speed of 714 mph - a difference of 24 mph over the F9F-7. This merited an order for 711 more F9F-8 Cougars making the type the most prevalent jet fighter in the Navy at the time, winged trainer. Grumman built 399 of this model which had a maximum speed of 705 mph.three views of the Grumman Cougar

Other versions of the F9F-8 were the camera-equipped F9F.8P's and the F9F-SB missile platform capable of launching four air-to-air missiles. Many cougars were fitted with refueling probes to extend their range to the requirements of their specific missions. On their retirement from front line duty, the Cougars continued serving as radio-controlled drones and drone controllers. These were usually redesignated QE-9's in keeping with the new classification.

The definitive F9F-8 Cougar had a wingspan of 34 feet 6 inches, length of 40 feet 10 inches and a height of 15 feet. Maximum launch weight was 20,000 pounds, service ceiling was 50,000 feet. Fixed armament was four 20 mm M3 cannons, and up to 3,000 pounds of bombs could be hauled on the under wing racks.

 

Grumman F9F Cougar Blue Angels


Cougar Model by Juan Lomeli

Cougar assembly details

Specifications for the Grumman F9F-8 Cougar

3 View of the Grumman F9F-8 Cougar

Length: 42 ft 2 in
Wingspan: 34 ft 6 in
Height: 12 ft 3 in
Wing area: 337 ft²
Empty weight: 11,866 lb
Loaded weight: 20,098 lb
Max takeoff weight: 24,763 lb
Powerplant: 1× Pratt & Whitney
J48-P-8A turbojet, 8,500 lbf
with water injection

Performance
Maximum speed: 647 mph
Range: 1,312 mi
Service ceiling: 42,000 ft
Rate of climb: 5,750 ft/min
Wing loading: 61 lb/ft²

Armament
Guns:
4 × 20 mm (0.79 in)
M2 cannon, 190 rounds per gun
Rockets:
6 × 5 in (127 mm) rockets
Missiles:
4× AIM-9 Sidewinder air-to-air missiles
Bombs:
2 × 1,000 lb bombs

 

Grumman F9F Cougar Callout
A: Operational fighter Cougars had four 20-mm cannon in the nose, but drones and F9F-8Ps had no guns. B: Visibility from the F9F's cockpit was very good, and was improved in the F9F-8. C: In the lengthened wing roots of the F9F-8, 25 gallons of extra fuel could be stored, and 67 gallons extra in the longer fuselage. D: Most operational F9F fighters were painted In a gloss white scheme, or gloss dark blue in the early years.
E: A simple ranging radar was fitted in an undernose bulge. F: Air for the J48 was fed through two intakes in the wing roots. G: The tall hook retracted into a neat fairing and was almost invisible when not in use. H: The F9F's broad fuselage was the result of using the Pratt & Whitney J48 engine, which was much wider than later jet engines.

 

Grumman F9F Cougar Crash Site
Crash site of a Grumman F9F Cougar. For more info CLICK HERE