saying, "This project is a huge success. Bottom line: the team has proven the ability to fly tailless aircraft to the edge of the low-speed envelope safely." Following the installation of a new flight computer in 2010, the X-48B was to continue a new phase of flight tests to investigate controllability aspects. The second phase of flight tests with the X-48B began in September 2010. The X-48C first flew on August 7, 2012. Engine yaw control was among the aspects to be studied. The X-48C completed its 8-month flight test program with its 30th flight on 9 April 2013. Variants X-48A The initial planned 35 ft (10.7 m) wide version. It was canceled before manufacture. X-48B Two 8.5% scale aircraft that have been used for flight testing. X-48C A modified, two-engine version of the X-48B intended to test a low-noise design. Specifications (X-48B) See also References Notes Citations Bibliography Chambers, Joseph R. "SP-2005-4539: Innovation In Flight: Research Of The NASA Langley Research Center On Revolutionary Advanced Concepts For Aeronautics." Washington, D.C.: NASA, August 2005. Jenkins, Dennis R., Tony Landis and Jay Miller. "American X-Vehicles: An Inventory—X-1 to X-50." Washington, D.C.: NASA, June 2003. Liebeck, R.H. "Design of the Blended Wing Body Subsonic Transport." AIAA Journal of Aircraft, Volume 41, Issue 1, January–February 2004, pp. 10–25. Norris, Guy and Mark Wagner. Boeing 787 Dreamliner. Minneapolis, Minnesota: Zenith Press, 2009. . Rose, Bill. Secret Projects: Flying Wings and Tailless Aircraft. Hinckley, UK: Midland Publishing, 2010. . External links NASA X-48 website Boeing X-48 website Cranfield Aerospace X-48 Jet Cat P200 page, JetCat USA Turbines Boeing X-48B (United States), Unmanned aerial vehicles, Jane's Information Group "Boeing X-48 (2007): Blended Wing Body" Aviation Week & Space Technology X-48 Edwards Air Force Base Blended wing body NASA aircraft Trijets 2000s United States experimental aircraft Unmanned aerial vehicles of the United States