Blattbefestigung einer Flugzeugluftschraube.

摘要

Preloading and retention of an aircraft propeller blade (12) are achieved by a preloading mechanism (85) received within an outer portion of a hub barrel (30) within which the blade (12) is received. The preloading mechanism (85) comprises an annular fastener (90) threaded into the barrel (30). A splined lock ring (125) prevents loosening or disengagement of the fastener (90) from the barrel (30). Location of the preloading mechanism (85) at an outer location of the barrel (30) allows the primary centrifugal load path from the blade (12) into the barrel (90) to be free from discontinuities and attendant stress concentrations.