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. Unlike the
Boeing X-45, initial Pegasus development was company-funded. The original vehicle carries the designation
X-47A Pegasus, while the follow-on naval version is designated
X-47B.