01922nam 2200481 450 991070378500332120150522155052.0(CKB)5470000002433868(OCoLC)909912067(EXLCZ)99547000000243386820150522j201411 ua 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierInvestigation of spiral bevel gear condition indicator validation via AC-29-2C using fielded rotorcraft HUMS data /Paula J. Dempsey [and three others]Cleveland, Ohio :National Aeronautics and Space Administration, Glenn Research Center,November 2014.1 online resource (vi, 173 pages) color illustrationsNASA/TM ;2014-218406Title from title screen (viewed on May 22, 2015)."November 2014."Includes bibliographical references (page 173).Investigation of spiral bevel gear condition indicator validation via AC-29-2C using fielded rotorcraft Health and Usage Monitoring Systems dataSpiral bevel gearsnasatHelicoptersnasatRotary wing aircraftnasatHelicopter tail rotorsnasatFast Fourier transformationsnasatSpiral bevel gears.Helicopters.Rotary wing aircraft.Helicopter tail rotors.Fast Fourier transformations.Dempsey Paula J.1390004NASA Glenn Research Center,Fundamental Aeronautics Program (U.S.),GPOGPOBOOK9910703785003321Investigation of spiral bevel gear condition indicator validation via AC-29-2C using fielded rotorcraft HUMS data3501825UNINA