Helicopter flap lock assembly

Details Helicopter flap lock assembly Helicopter flap lock assembly

1997-09-12

1999-09-14

Lopez, F. Daniel

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Including movement limit stop or damping means

416107, 416143, 416153, B64C 2738

Patent

active

059512520

ABSTRACT:
A flap lock device for restraining the flapping movement of a main rotor blade assembly on a helicopter. The flap lock device includes an first elongate frame member which extends between a first end and a second end and second elongate frame member which also extends between a first end and a second end. A pivot connection pivotally connects the first end of the first frame member with the first end of the second frame member. An outwardly facing contact pad is coupled to each of the frame members and adapted for contact with various positions on the helicopter. An actuating device interconnects the first and second frame members and is used to forcibly move the contact pads outwardly and into contact with the helicopter. The flap lock device is installed between the main rotor blade assembly and the main rotor assembly to forcibly maintain the main rotor blade assembly against the droop stop mechanism.

REFERENCES:
patent: 4178130 (1979-12-01), Ferris et al.
patent: 4284387 (1981-08-01), Ferris
patent: 4368006 (1983-01-01), Ferris et al.
patent: 5007799 (1991-04-01), Mouille et al.

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