Airbus just unveiled the ZeroE, a four-propeller commercial aircraft that will be powered by hydrogen-fuel-cell stacks and ...

The XF-88B was designed to test the applications of propeller engines at high speeds, as jet engines of the day used much more fuel than modern ... aircraft, which took its first flight in 1955 ...

Cessna Model A was the first ... modern cockpit with circuit breakers, larger control surfaces, and pre-select flaps. There are so many variants with few changes because Cessna approaches their ...