Unmanned aircraft systems research and development : hearing before the Committee on Science, Space, and Technology, House of Representatives, One Hundred Fourteenth Congress, first session, January 21, 2015

Operating unmanned aircraft systems in the national airspace system : assessing research and development efforts to ensure safety : hearing before the Subcommittee on Oversight, Committee on Science, Space, and Technology, House of Representatives, One Hundred Thirteenth Congress, first session, Friday, February, 15, 2013

Army Future Attack Reconnaissance Aircraft (FARA) program proposed cancellation : background and issues for Congress

Beyond tube-and-wing : the X-48 blended wing-body and NASA's quest to reshape future transport aircraft

Mach 3+ : NASA/USAF YF-12 flight research, 1969-1979

Logbook of Signal Corps No. 1 : the U.S. Army's first airplane

The Federal Aviation Administration's flight plan : examining the agency's research and development programs and future plans : hearing before the Subcommittee on Space and Aeronautics of the Committee on Science, Space and Technology, of the House of Representatives, One Hundred Eighteenth Congress, first session, March 9, 2023

Promise denied : NASA's X-34 and the quest for cheap, reusable access to space