Certain propeller driven aeroplanes are equipped with piston engines whose fundamental "firing"-frequency coincides with the rotational frequency of the propeller. Taking the two sources as a system ...

The effects of the ground on propeller noise have now been measured experimentally. The effects of the ground on propeller noise have been measured experimentally for the very first time by ...

The Lidl glider, very popular for its low price and huge wingspan, sold as a free flight glider for kids, it's perfect to ...

If you have ever observed a propeller plane closely, you might have noticed the propeller is slightly angled to the right. The angled engine and propeller can seem jarring, considering symmetry is ...

Russian researchers are planning to test-fly a Yakovlev Yak-40 modified with a superconducting electric motor and propeller mounted on the trijet’s nose. The Moscow-based Central Institute of Aviation ...