Rotor blade shaft integrity monitoring system

Details Rotor blade shaft integrity monitoring system Rotor blade shaft integrity monitoring system

1982-06-14

1984-03-27

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

With measuring, testing, signalling or inspection means

416134A, 416226, B64C 2748

Patent

active

044391064

ABSTRACT:
A helicopter rotor blade to hub arm attachment configured to react centrifugal loads from the blade through a blade cuff, spindle, and elastomeric bearings utilizes a bolt in the bore of the spindle for secondary load path operation and a spindle integrity monitoring indicator to provide a visual showing of a deviation from the normal load path.

REFERENCES:
patent: 3547555 (1970-12-01), Jensen
patent: 3667862 (1972-06-01), Parr
patent: 3691820 (1972-09-01), Fiore
patent: 3942910 (1976-03-01), Snyder et al.
patent: 4203708 (1980-05-01), Rybicki
patent: 4264277 (1981-04-01), McCafferty
patent: 4373862 (1983-02-01), Ferris et al.

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