The Bell P-59A was a fighter aircraft built in the United States during World War II. The prototype XP-59A became the first jet-powered aircraft to fly in the US on 1 October 1942.
The USAAF was not impressed by its performance and cancelled the contract when fewer than half of the aircraft ordered had been produced. Although no P-59s went into combat, it paved the way for another design generation of US turbojet-powered aircraft and was the first turbojet fighter to have its turbojet engine and inlet nacelles integrated within the main fuselage.