northrop grumman x-47a pegasus
添加释义
Northrop Grumman X-47A Pegasus
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abstract:
The Northrop Grumman X-47 is a demonstration Unmanned Combat Aerial Vehicle. The X-47 began as part of DARPA's J-UCAS program, and is now part of the United States Navy's UCAS-D program to create a carrier-based unmanned aircraft.
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