The term WWII Fighters can be summarized as Hellcats, which were a type of fighter aircraft used by the United States Navy during World War II. The Grumman F6F Hellcat was a carrier-based fighter aircraft that was designed to replace the earlier F4F Wildcat. It was one of the primary American fighters used during the war and was credited with destroying 5, 271 enemy aircraft, making it the most successful fighter aircraft of the war.