There were a dozen fatal crashes during Army Black Hawk training missions since January 2014 that claimed the lives of 47 ...

Re­searchers at the Ger­man Aerospace Cen­ter (Deutsches Zen­trum für Luft- und Raum­fahrt; DLR) in Göt­tin­gen have vi­su­alised the main cause of noise from a heavy­weight he­li­copter in flight. To ...