Helicopter flap lock assembly
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United States of America Patent
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-
Sep 14, 1999
Grant Date -
N/A
app pub date -
Sep 12, 1997
filing date -
Sep 12, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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