[FroggyTheGremlim]

Any idea (without loose lips sinking ships) what the dimensions are and the parameters (speed, range, etc.)?

[Starwolf]

X-47B is from the USN N-UCAS program. Originally a joint program with the USAF called JUCAS, the USAF pulled out and the USN continued on. There was also a Boeing competitor called the X-45C.

If you want the stats, Google the names. There is lots out there.