Helikopter CH-53 - Ein flüsternder Bolide

Daring high-altitude flights close to the ground. Aviation prowess at Braunschweig Airport: A Sikorsky CH-53 hovers for minutes at a very low altitude just a few meters above the ground. These are unfamiliar flight maneuvers for the helicopter crew and a team of scientists. The DLR Helicopter Aerodynamics Department in Göttingen is investigating how rotor blade noise can be reduced using a CH-53, a German Armed Forces transport helicopter. Thanks to the measurement flights, the research team was able to capture images of the blade-tip vortices on the rotor blades. A first.