Accession Number : ADD001259

Title :   Selective Rotor Blade Severing Apparatus.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Foral,Marvin J

Report Date : 29 Jul 1974

Pagination or Media Count : 10

Abstract : The patent application relates to an emergency rotor blade disconnect system for at least two paris of opposing helicopter rotor blades. A plurality of parallel wires are embedded in each blade and electrically connected to an explosive squib-actuated rotor blade severing means at the rotor hub. Breakage of one of the rotor blades along its length initiates an electrical circuit to disconnect the remaining portion thereof from the rotor hub, and also to disconnect the blade opposite to said one blade in order to maintain rotor balance and avoid excessive rotor vibration.

Descriptors :   *Helicopter rotors, *Rotor blades(Rotary wings), *Self destruct devices, Patents, Explosive actuators, Jettisonable equipment

Subject Categories : Helicopters

Distribution Statement : APPROVED FOR PUBLIC RELEASE