The Bell X-1 (Bell Model 44) is a rocket engine–powered aircraft, designated originally as the XS-1, and was a joint National Advisory Committee for Aeronautics–U...

The Bell X-2 (nicknamed "Starbuster") was an X-plane research aircraft built to investigate flight characteristics in the Mach 2–3 range. The X-2 was...

for the Bell X-1, the first supersonic aircraft, and for the development and production of many important civilian and military helicopters. Bell also developed...

The Bell X-1 was the first crewed airplane to exceed the speed of sound in level flight and was the first of the X-planes. Bell X-1 Chuck Yeager Yeager:An...

was placed in 1945, and the first operational flight of an X-plane took place when the Bell X-1 made its first powered flight nearly three years later at...

X-1 may refer to: Bell X-1, the first aircraft to exceed the speed of sound in controlled level flight Lada X-1, a 1981 Soviet concept MPV McLaren X-1...

The Bell AH-1 Cobra is a single-engined attack helicopter developed and manufactured by the American rotorcraft manufacturer Bell Helicopter. A member...

The Bell X-22 is an American V/STOL X-plane with four tilting ducted fans. Takeoff was to selectively occur either with the propellers tilted vertically...

P-63 Kingcobra, the successor to the P-39, and the Bell X-1 were also Bell products. In 1941, Bell hired Arthur M. Young, a talented inventor, to provide...

The Bell X-14 (Bell Type 68) is an experimental VTOL aircraft flown in the United States in the 1950s. The main objective of the project was to demonstrate...