At the very crux of engineering is the desire to problem-solve, optimize, and squeeze out every bit of efficiency possible from the system being built. Aircraft design and aeronautical engineering ...

When Gizmag paid a visit to the Paris Green Air Show in June, there was one craft on display that seemed to steal the show. The Green Cri aerobatic electric airplane hadn't even left terra firma, yet ...

If stardom is measured by camera time and the number of drooling onlookers, then the Green Cri was undoubtedly the star of the recent Paris Green Air Show. The experimental aerobatic electric aircraft ...

A counter-rotor engine like this one being developed under the Clean Sky programme could be propelling aircraft within 20 years. [[Timothy Spence]] SPECIAL REPORT / European researchers foresee a time ...

The An-70 transport is a high-wing aircraft powered by four 14,000-shp ZMKB Progress D-27 propfan engines with six-blade counter-rotating propellers. Maximum payload is 103,615 lb. Two An-70 ...

High-concept MAV takes off with fixed wings and counter-rotating propellers, allowing it to operate with high aerodynamic efficiency--even in adverse conditions, according to its creator. The military ...

Readers have expressed their worries about the logistical burdens of counter-rotating propellers and gearboxes on the Airbus Military A400M (AW&ST Sept. 15, p. 9; Aug. 18/25, p. 12). Controllability ...