Helicopter blade droop stop with slidable droop stop seat

Details Helicopter blade droop stop with slidable droop stop seat Helicopter blade droop stop with slidable droop stop seat

1983-12-16

1985-10-29

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

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

Including movement limit stop or damping means

416141, B64C 2738

Patent

active

045498520

ABSTRACT:
Apparatus for supporting the rotor blades of a helicopter is disclosed. Support in droop under both statically and dynamically loaded conditions is discussed. The droop stop mechanism 34 has low susceptibility to the deleterious effects of snow/ice or dirt contamination. The droop stop seat 42 is mounted for rotation in a corresponding receptacle 50 at the base of the rotor blade assembly 14 and is slidable between static stop and dynamic stop positions along the pitch axis of the blade to be supported.

REFERENCES:
patent: 3591310 (1971-07-01), Mouille
patent: 3778189 (1973-12-01), Ferris
patent: 3853426 (1974-12-01), Rybicki
patent: 3932059 (1976-01-01), Rybicki
patent: 4203708 (1980-05-01), Rybicki
patent: 4369019 (1983-01-01), Lovera et al.
patent: 4419051 (1983-12-01), DeRosa

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