Accession Number : ADD001485

Title :   Airfoil Camber Change System.

Descriptive Note : Patent,


Personal Author(s) : O'Neill,Edward T ; Brennan,William M ; Kriechbaum,Gerhard K

Report Date : 17 Sep 1974

Pagination or Media Count : 4

Abstract : The patent relates to an airfoil camber change system for changing the camber of the leading or trailing edges of airfoils. The system includes a flexible continuous upper surface, a lower surface comprising a plurality of slidable overlapping segments and one or more actuation mechanisms. The actuation mechanism includes a plurality of bell cranks and links that are operatively connected to the upper and lower airfoil surfaces. A primary actuator is provided to drive the actuation mechanisms. When the system is driven the actuation mechanism changes the camber profile and maintains proper separation and support of the upper and lower surfaces. The profile is changed by bending the upper constant length surface and shortening the lower surface by increasing the overlap of the slidable overlapping segments.

Descriptors :   *Aerodynamic control surfaces, *Patents, Airfoils, Camber, Sliding contacts, Actuators

Subject Categories : Aircraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE