Trailing edge adjustable weight system for helicopter main...

Details Trailing edge adjustable weight system for helicopter main... Trailing edge adjustable weight system for helicopter main...

2006-10-10

2006-10-10

Look, Edward K. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

With weight-balancing means

Self-shifting or selectively adjustable mass

C416S500000

Reexamination Certificate

active

07118343

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.

REFERENCES:
patent: 3999888 (1976-12-01), Zincone
patent: 4601639 (1986-07-01), Yen et al.
patent: 6311924 (2001-11-01), Ferrer

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