F9F Panther: Grumman’s Korean War Jet Cat

di | Aug 12, 2026 | Storia e leggende, Aviazione militare | 0 commenti

On 3 July 1950, barely a week into the Korean War, Lieutenant JG Leonard Plog rolled his straight-winged jet onto the tail of a propeller-driven Yak-9 and squeezed the trigger. It was the first air-to-air kill ever scored by a US Navy jet, and it belonged to a stubby, tip-tanked fighter called the Panther.

Grumman had started the design in the last months of World War II, mating a single imported Rolls-Royce Nene engine to a rugged carrier airframe. The permanent tanks on the wingtips gave the Panther its unmistakable silhouette, and after its 1947 maiden flight it was cleared for carrier operations in September 1949.

INFORMAZIONI RAPIDE

TipoSingle-seat, single-engine carrier jet
Primo volo21 November 1947
centrale elettrica1 x Pratt & Whitney J48 turbojet (F9F-5)
Velocità massima579 mph (932 km/h)
Numero costruito1,382
Notable pilotsJohn Glenn, Ted Williams, Neil Armstrong
DestinoFrontline to 1956; Argentina to 1969

The Navy's Korean Workhorse

Over Korea the Panther became the US Navy and Marine Corps' primary jet, flying some 78,000 sorties. It was outclassed in a straight fight by the swept-wing MiG-15, yet Panther pilots still claimed seven of them for the loss of two of their own, and spent most of the war hammering bridges, flak sites and supply lines as a tough, dependable attack aircraft.

The cockpit roster reads like a hall of fame. Future astronaut John Glenn flew Panthers as a Marine, alongside baseball legend Ted Williams, who left the Boston Red Sox to serve. Fellow moonwalker-to-be Neil Armstrong flew them too, and ejected after his jet clipped a cable strung across a Korean valley.

F9F-2 Panthers launching from USS Leyte in 1951
F9F-2 Panthers of VF-31 launch from USS Leyte off Korea, 1951. Photo: U.S. Navy

One Panther Against Seven MiGs

The most astonishing Panther story stayed secret for forty years. On 18 November 1952, Lieutenant Royce Williams found himself alone against a swarm of Soviet MiG-15s over the Sea of Japan. In a running half-hour battle he shot down four, nursed his shattered jet back to the carrier riddled with 263 hits, and was ordered never to speak of it to avoid igniting open war with Moscow.

“In the moment I was a fighter pilot doing my job. I was only shooting what I had.”
Royce Williams — US Navy F9F-5 Panther pilot, on his secret 1952 dogfight

The Panther also became the first jet of the Navy's Blue Angels, thrilling airshow crowds from 1949. Withdrawn from frontline service in 1956, a handful soldiered on with Argentina until 1969.

It was never the fastest cat in the sky, but the Panther put the US Navy into the jet fight and carried some of the twentieth century's most famous aviators there in one piece.

F9F Panther ramp strike aboard USS Midway
Carrier flying was unforgiving: an F9F ramp strike aboard USS Midway, 1951. Photo: U.S. Navy
“I was turning and one guy hit me with the 37mm cannon that knocked out my hydraulics.”
Royce Williams — US Navy F9F-5 Panther pilot

A short history of Grumman’s jet cat and the war that made it famous:

Sources: Wikipedia; Task & Purpose; National Naval Aviation Museum; U.S. Navy.

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