clipped from en.wikipedia.org Boeing X-48
clipped from www.nasa.gov
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NASA - Time Magazine Recognizes the X-48B
NASA - Aeronautics Research Mission Directorate
Boeing X-48 - Wikipedia, the free encyclopedia
NASA Dryden X-48B Blended Wing Body Photo Collection
Boeing: Boeing Phantom Works to Lead Research on X-48B Blended Wing Body Concept
Airliners.net Military: Boeing To Begin Ground Testing X48B