Trailing edge adjustable weight system for helicopter main rotor blades
US7118343B2 · kind B2 · utility
9Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2004 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Nov 29, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S416/50
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system of adjustable balancing weights is provided for a helicopter main rotor blade. The trailing edge of the rotor blade is formed with a plurality of recesses that each receive an aerodynamically shaped weight to adjust and balance the weight of the rotor blade. A forward weight recess and a forward weight are also provided on the rotor blade adjacent the rotor blade leading edge. The lateral spacing between the weight adjacent the rotor blade leading edge and the weights adjacent the rotor blade trailing edge provides greater flexibility in balancing the mass of the rotor blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.