01656oam 2200445Ia 450 991069962730332120110203151810.0(CKB)5470000002404666(OCoLC)227960512(EXLCZ)99547000000240466620080513d2001 ua 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierBlack Hawk helicopter vibration analysis due to main rotor damage[electronic resource] directional constituents of the resultant vibrations /by Joseph C. FriesAberdeen Proving Ground, MD :U.S. Army Research Laboratory,[2001]1 online resource (viii, 16 pages) illustrationsARL-TR ;2442Title from title screen (viewed on Feb. 3, 2011)."March 2001."Includes bibliographical references (page 9).Black Hawk helicopter vibration analysis due to main rotor damage Black Hawk (Military transport helicopter)Vibration (Aeronautics)Physiological effectRotors (Helicopters)Black Hawk (Military transport helicopter)Vibration (Aeronautics)Physiological effect.Rotors (Helicopters)Fries Joseph C1413966U.S. Army Research Laboratory.DTICEDTICEOCLCQGPOBOOK9910699627303321Black Hawk helicopter vibration analysis due to main rotor damage3511796UNINA