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… pressure for a vessel in its normal operating position at the operating temperature specified for that pressure, and includes a … of 4; 3.5 "factor of safety" means a margin of safety and is used to determine maximum allowable stress value used for …
30.794
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… Member Qualification Schedule - Pilot Proficiency Check - Helicopter 723.89 - Qualifications of Operational Control … instrument rating; (B) have at least 500 hours of flying time as a helicopter pilot-in-command, of which 250 … landing; (B) the indicated airspeed, heading and threshold height are satisfactory for a normal transition to an …
71.511