Messerschmitt-boelkow-blohm Gesellschaft MIT Beschraenkter Haftung

Gerhard Singer

Michael Hahn

Otmar Friedberger

Franz Nowak

Albert Gietl

Rolf Leo

A rotor blade, for example for a rotary wing aircraft, has a wing section d a root section interconnected by a neck section surrounded by a blade angle adjustment sleeve which is stiff against torque moments for transmitting blade angle adjustment movements through the sleeve to the wing section. The trailing edge of the sleeve is provided with a gap which extends, at least partially, alongside the rear edge of the neck section for visually inspecting the neck section inside the sleeve even when the root section is connected to a rotor hub. A reflecting mirror may be used for inspecting all sides of the neck section through the gap.

Rotor blade, especially for a rotary wing aircraft

A wheel, especially a disk wheel has six components, namely, two mirror-setrical hub sections, a wheel rim, two bending resistant wheel disks and a thrust and/or shear resistant body enclosed by the rim, by the two hub sections, and by the two wheel disks whereby metal components and fiber composite material components are bonded to one another to form the wheel. The materials of these components are selected for three purposes, to simplify the construction, to optimize the strength characteristics of the wheel, and to greatly increase the wheel's ability to dampen vibrations. The hub sections and rim are made of metal, the disks are made of fiber compound material and the enclosed body is made of metal or fiber compound material all held together by an adhesive bond. The hub sections have radially extending flanges which intermesh with the radially inner edge of the wheel disks in a multilayer fashion. The thrust and/or shear resistant body has preferably a honeycomb type structure.

Growing community of inventors

Munich, Germany

Gerhard Singer