Blue sky and X-48B
Don't look for a full-size version right away, however. Boeing has a long horizon for the R&D effort, envisioning the larger successors to the prototype serving as a multipurpose military platform--from cargo transport to bomber--in 15 to 20 years.
September 18, 2007 4:00 AM PDT
Photo by: NASA photo by Carla Thomas
| Caption by: Jonathan Skillings
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