Guidance Material for Composite Blade Fatigue

02 February 2001

The Federal Aviation Administration (FAA) has announced the availability of two draft advisory circulars (ACs): AC No. 20-66 [DRAFT], Vibration and Fatigue Evaluation of Airplane Propellers, and AC 35.37-1[DRAFT], Guidance Material for Fatigue Limit Tests and Composite Blade Fatigue Substantiation. Comments must be received on or before April 2, 2001.

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