Selected Deficiencies Affecting the Helicopter Accident Picture

This presentation to the Development and Test Session of the American Helicopter Society meeting held at the Institute of Aeronautical Sciences' Building at 7660 Beverly Boulevard., Los Angeles, 4 and 5 November 1954. The personal invitation to speak on this subject was tendered by Group Chairman, Robert A. Wagner, Chief Engineer of Hiller Helicopter Corporation, Palo Alto, California, to Captain Willis F. Johnson, USAF.