Michael H. Gorn, Giuseppe De Chiara: X-Planes from the X-1 to the X-60 – An Illustrated History. Vorwort von Dr. Roger D. Launius, former NASA Chief Historian. Springer Nature, 2022, ISBN 978-3-03086398-2, S.21 (eingeschränkte Vorschau in der Google-Buchsuche).
Steve Pace, Eric Hehs: The Projects of Skunk Works – 75 Years of Lockheed Martin's Advanced Development Programs. Voyageur Press, Minneapolis, MN 2016, ISBN 978-0-7603-5032-4, S.58 (eingeschränkte Vorschau in der Google-Buchsuche).
Dennis R. Jenkins, Tony Landis, Jay Miller: American X-Vehicles. An Inventory – X-1 to X-50 – Centennial of Flight Edition (= Monographs in Aerospace History. Band31). National Aeronautics and Space Administration, Office of External Relations, Washington, D.C. 2003, S.13 (nasa.gov [PDF]).
