TY - BOOK ED - NASA conference on aircraft safety and operating problems (1971 : Langley Research Center) ED - Virginia, Langley Research Center. TI - NASA aircraft safety and operating problems U1 - 629.132 PY - 1971/// CY - Washington D C PB - National Aeronautics and Space Administration KW - Runway conditions KW - Cockpit ergonomics KW - Atmospheric turbulence N1 - Includes bibliographical references ER -