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...

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...

412 Indonesian IPTN's licensed product of Bell 412 Subaru-Bell UH-2 (formerly UH-X) Modified version of the Bell 412 EPI; 150 on order to meet the JGSDF's...

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

Thrust/weight: 2.07 Aviation portal Rocketry portal Spaceflight portal SpaceShipOne SpaceShipTwo Aircraft of comparable role, configuration, and era Bell X-2 Douglas...

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...

The Bell X-16 was a high altitude aerial reconnaissance jet aircraft designed in the United States in the 1950s. The designation of X-16 was a cover to...

( x ) = exp ⁡ ( − x 2 ) {\displaystyle f(x)=\exp(-x^{2})} and with parametric extension f ( x ) = a exp ⁡ ( − ( x − b ) 2 2 c 2 ) {\displaystyle f(x)=a\exp...

neurologist James Purdon Martin and British geneticist Julia Bell described a pedigree of X-linked intellectual disability, without considering the macroorchidism...