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.
Read more about this topic: Boeing X-48
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