The Navy solved the F4U Corsair problems by giving them to the Marines
On May 29, 1940, the XF4U-1 Corsair prototype made its maiden flight. In later trials it surpassed 400 mph, suggesting top-tier performance just as the U.S. Navy was preparing to enter World War II. However, design changes prompted by combat experience in Europe and a crash of the prototype slowed progress. The aircraft was redesigned with heavier weaponry and wing fuel tanks moved partly into the fuselage, which lengthened the nose and reduced pilot visibility, in turn diminishing its suitability for carrier operations.
The Corsair’s early difficulties operating from carriers meant its development as a true carrier aircraft dragged on and was not fully resolved by the U.S. Navy until late 1944. Fortunately, Grumman was able to fill the gap with the excellent F6F Hellcat, an aircraft much more forgiving for the large numbers of inexperienced wartime pilots who would make up most of the carrier air groups in the coming campaigns. The Navy addressed the Corsair problem in its usual fashion: it handed the aircraft over to the Marines.
In this way, an aviation legend emerged: the Corsair became the main fighter of the U.S. Marine Corps during the Solomon Islands campaign. Fast and with long range, the Corsair initially struggled in combat over Rabaul, where highly skilled Zero pilots continued to pose a serious threat into 1943. Over time, Marine pilots learned how to get the best performance from their aircraft and began inflicting heavy losses during the prolonged war of attrition between Imperial Japan and the Allies in the Solomons, a period when both sides were worn down by the major carrier battles of 1942.
As a result, the Corsair took its place at the forefront of Allied air superiority, frequently providing high cover for other Allied aircraft over the Solomons. Aces such as prewar enlisted pilot Ken Walsh began exploiting its advantages in range and speed to extend the reach of American fighter power during the island-hopping campaign. Although the Navy’s VF-17 “Jolly Rogers” squadron successfully flew Corsairs from the carrier Bunker Hill by mid-1943, they were reassigned to land-based operations with the Marines in the Solomons for logistical reasons, though their carrier experience proved useful while supporting the Bougainville landings at the end of 1943.
Marine pilot Gregory Boyington became a legend with his Blacksheep Squadron. Although there is some debate over his final tally of victories and he struggled with alcoholism, his influence on Marine Corps aviation was significant. Another Marine Corsair ace, Bob Hanson, rapidly achieved an impressive number of kills, making him the Marine Corps’ third-highest-scoring ace in just a few weeks. Marine fighter squadrons have remained a vital element of Marine aviation ever since, and by the end of the war the Corsair also proved valuable as a close air support aircraft.
In Britain, the Corsair was welcomed in spite of its poor carrier-handling characteristics, though Eric “Winkle” Brown was never impressed and preferred the Hellcat as a fighter. The Corsair flew escort for Fleet Air Arm attacks on Tirpitz in 1944, and later served from HMS Illustrious and Victorious in the Far East with the British Eastern Fleet, which evolved into the British Pacific Fleet. Royal Marine ace Major Ronnie Hay scored several victories in the type while leading Royal Navy strikes on the Japanese‑held refineries at Palembang, and Canadian Robert Hampton Gray was posthumously awarded the Fleet Air Arm’s only fighter pilot Victoria Cross in the war’s closing days. The Royal New Zealand Air Force also adopted the Corsair as its main fighter, and their land-based aircraft are often mistaken for Royal Navy Corsairs in the Pacific.
By 1945, the growing Kamikaze threat pushed the U.S. Navy to tolerate the Corsair’s carrier-handling issues and bring Marine Corps units aboard ships to use it as an anti-Kamikaze interceptor. The danger had become so severe that carrier air groups were reorganized into two large 36‑plane squadrons—one pure fighter (VF) and one fighter‑bomber (VBF)—to avoid the complexity of managing a single 72‑plane unit, with only a small bombing or torpedo squadron remaining. Many Navy pilots flew Corsairs in these new formations, as experienced Marine Corsair units were joined by newly formed Navy squadrons. Operating over Tokyo, Iwo Jima, and Okinawa, Corsairs claimed numerous victories against Kamikaze attackers from both carriers and land bases, and in the final days of the war, they flew sustained missions over the Japanese home islands as both fighters and strike aircraft.
After the war, the Corsair continued in service and saw heavy action over Korea, flying constant sorties from the first attacks launched off USS Valley Forge through to the war’s end. From USS Leyte, Navy Corsair pilot Thomas Hudner earned the Medal of Honor for trying to save his wingman Jesse Brown, the Navy’s first Black aviator. During a period when jets had limited range and lacked night capability, the Corsair formed a core element of Navy and Marine aviation, able to fly day and night with both regular and night‑fighter units across the Korean Peninsula, where Seoul changed hands four times in under a year. Typically, Corsairs made up two of the five squadrons in a carrier air group, alongside two jet squadrons and one AD Skyraider squadron.
During this period, Corsairs proved invaluable as close air support for ground troops and played a key role in countering enemy night raiders—targets that often proved difficult and costly for Air Force jet night‑fighters to intercept because they flew low and slow. Corsairs also downed several North Korean Yak‑9s, and Marine pilot Jesse Folmar managed to shoot down a MiG‑15, though he lost his own aircraft to another MiG. The Navy’s only ace of the Korean War, Guy “Lucky Pierre” Bordelon, achieved all five of his kills while flying night‑fighter patrols to protect the large U.S. Air Force base complexes at Kimpo, Suwon, and Taegu.
In French service, Corsairs saw combat in French Indochina, Algeria, and during the Suez Crisis. The French Navy became the aircraft’s final customer, ordering new‑build F4U‑7s in 1952 and later receiving ex‑USMC AU‑1s in 1954. The Aéronavale kept the type in front‑line use until it acquired F‑8E Crusaders from the same manufacturer in 1964. As a result, the Corsair held the rare distinction of having the longest production run of any American propeller‑driven fighter, spanning more than a decade.
Corsairs also served at sea with the Argentine Navy, helping build a core of naval aviators experienced in South Atlantic carrier operations—skills later carried on by those who fought the British in the Falklands. The Corsair’s combat career ultimately ended in battles against its own type during the 1969 “Soccer War” between El Salvador and Honduras, which produced the last air‑to‑air kills achieved by this long‑serving fighter and, in fact, the final aerial engagements in which both sides flew piston‑engined aircraft.
As a video tribute, we present the opening sequence of Baa Baa Blacksheep, which introduced the Corsair’s striking beauty to a new generation of aviation enthusiasts in the 1970s.
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Photo by U.S. Navy and U.S. Marine Corps
