§ 35.41 - Overspeed and overtorque.

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When the applicant seeks approval of a transient maximum propeller overspeed, the applicant must demonstrate that the propeller is capable of further operation without maintenance action at the maximum propeller overspeed condition. This may be accomplished by:

Performance of 20 runs, each of 30 seconds duration, at the maximum propeller overspeed condition; or

Analysis based on test or service experience.

When the applicant seeks approval of a transient maximum propeller overtorque, the applicant must demonstrate that the propeller is capable of further operation without maintenance action at the maximum propeller overtorque condition. This may be accomplished by:

Performance of 20 runs, each of 30 seconds duration, at the maximum propeller overtorque condition; or

Analysis based on test or service experience.