Airbus Helicopters Deutschland Gmbh

Dieter Schimke

Gerald Kuntze-Fechner

Christian Wehle

Alessandro D'Alascio

Sascha Schneider

Ulrich Denecke

Stefanie Link

Hans-Philipp Klam

A noise reduced and performance improved rotor blade () for a helicopter. The blade has three aerodynamic sections () along the blade span between a leading edge () and a trailing edge (). An inner rectangular or tapered section () next to a blade root for said blade's connection to a rotor hub rotating about a rotor axis of said helicopter. A middle section () is adjacent to the inner section () and opposed to the blade root. The middle section () is forward swept over a distance along the span of the blade (). An outer section () lies between the middle section () and the blade tip (). The outer section () is back swept along a further part of the span of the blade (). The outer section () includes a parabolic shape towards the free end of the blade tip ().

Noise and performance improved rotor blade for a helicopter

A helicopter with a longitudinal axis and with a tail portion () with a transverse duct () and a drive shaft () inside a drive shaft fairing () for an aerodynamic and acoustic optimized counter-torque device () supported within said transverse duct ().

Helicopter with a transverse duct

Growing community of inventors

Unterhaching, Germany

Dieter Schimke