The revolutionary design of the F4U Corsair was created in 1938 in response to a request from the US Navy for a high-speed carrier-based fighter. Chance Vought took on the challenge, aiming to fit the most powerful available engine (the Pratt-Whitney Double Wasp) into the smallest possible airframe. The key was to mount the heavy landing gear on the inverted, swept wings that became the aircraft's trademark. The prototype flew on 29 May 1940, and the US Navy received its first production Corsair on 31 July 1942. However, tests conducted by the US Navy on aircraft carriers revealed a number of design flaws, which meant that the first production batch of the aircraft went to Marine Corps squadrons and operated from land bases. The first unit to receive the F-4 was VMF-124 on Guadalcanal. It quickly became clear that the new machine was definitely superior to all enemy machines and, in many respects, also the F-6 Hellcat. At the same time, however, it was very difficult to pilot and required great care when landing. Interestingly, only up to 20% of Corsair missions took off from the decks of aircraft carriers and throughout almost the entire war they remained mainly a machine of the Marine Corps. After the end of World War II, the F-4 Corsair remained in the line and took part in the Korean War (1950-1953). Technical data (version F4U-4): Maximum speed: 731 km/h, rate of climb: 19.7 m/s, maximum ceiling 12649 m, maximum range: 1115 km, armament: fixed - 6 M2 machine guns, caliber 12, 7mm and 4 Browning 20mm cannons, sling - bombs up to 1800 kg.