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US 2009/0269205 A1Published application
Main rotor blade with integral cuff
AssigneeSikorsky Aircraft Corporation
InventorsKevin P. Leahy, Richard Joseph Simkulak, David A. Kovalsky
Life of this patent
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Abstract
A main rotor blade assembly includes a main spar with an integral cuff. The main spar is directly to a rotor hub assembly through the integral cuff.
Claims20
A main rotor blade assembly comprising:
- a main spar which comprises a root section and a main section, said root section forms an integral cuff.
A rotary wing aircraft comprising:
- a rotor hub assembly;
- a main spar which comprises a root section and a main section, said root section forms an integral cuff having a first hub mount aperture and a second hub mount aperture;
- a first pin which passes through said first aperture to mount said main spar to said rotor hub assembly;
- and
- a second pin which passes through said second aperture to mount said main spar to said rotor hub assembly.
2 more elements
A method of mounting a main rotor blade assembly comprising:
- forming an integral cuff into a root section of a main spar;
- and
- attaching the integral cuff directly to a rotor hub assembly.
Dependencies are inferred from the claim text.