aviation 2050 : hearing before the Subcommittee on Aviation of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Sixteenth Congress, first session, March 12, 2019 United States Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Aviation, creator text bibliography Legislative hearings. dcu 2019 monographic eng 1 online resource (xii, 73 pages) "116-6." GPO Cataloging Record Distribution Program (CRDP). Includes bibliographical references. n-us--- United States. Federal Aviation Administration Rules and practice United States. National Aeronautics and Space Administration. Aeronautics, Commercial Technological innovations United States Aeronautics, Commercial Economic aspects United States Aerospace industries Technological innovations United States Drone aircraft United States Aeronautics United States Safety measures National Airspace System (U.S.) KF27 .P89624 2019b Y 4.T 68/2:116-6 Y 4.T 68/2:116-6 United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Aviation. (OCoLC)1126542561 https://purl.fdlp.gov/GPO/gpo128114 https://purl.fdlp.gov/GPO/gpo128114 PUCPR 191106 20191219135225.0 on1126570670 eng