The Grumman F6F Hellcat was a carrier-based fighter aircraft developed to replace the earlier F4F Wildcat in United States Navy (USN) service. Although the F6F resembled the Wildcat, it was a completely new design powered by a 2,000 hp Pratt & Whitney R-2800. Some tagged it as the "Wildcat's big brother". The Hellcat and the Vought F4U Corsair were the primary USN fighters during the second half of World War II.
The Hellcat was the first USN fighter designed in view of lessons from combat with the Japanese Zero. The Hellcat was credited with destroying 5,271 aircraft while in service with the U.S. Navy and U.S. Marine Corps (5,163 in the Pacific and eight more during the invasion of Southern France, plus 52 with the Royal Navy's Fleet Air Arm during World War II), which was more than any other U.S. naval aircraft. Postwar, the Hellcat was phased out of front line service, but remained in service as late as 1954 as a night fighter. The Hellcat holds a crew of one and is powered by a 2,000 hp Pratt & Whitney R-2800-10W "Double Wasp" two-row radial engine. The more powerful engine gave the Hellcat a top speed of 380 mph and a service ceiling of 37,300 ft.