35.41—Overspeed and overtorque.
(a)
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:
(1)
Performance of 20 runs, each of 30 seconds duration, at the maximum propeller overspeed condition; or
(b)
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:
(1)
Performance of 20 runs, each of 30 seconds duration, at the maximum propeller overtorque condition; or