X-39
Mission: The X-39 program, though classified, is rumored to be an autonomous (unmanned) subscale demonstrator planned under the Future Aircraft Technology Enhancements program.
Manufacturer: Air Force Research Laboratory
Number Built: unknown
Sponsor: USAF
Fastest Flight: NA
Highest Flight: NA
First Flight: Unknown
Last Flight: NA
Total Flights: NA
Length: NA
Wingspan: NA
Height: NA
Gross Weight: NA
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