9. RQ 180
The very sight of this plane is sure to make James Bond himself, turn green with envy. The RQ 180 is the U.S. Air Force’s secretly-built new radar-evading spy drone, which boasts an impressive wingspan of around 130 feet. The USAF has hardly been forthcoming about the aircraft’s specs, however the RQ 180 is aimed at providing more information about sensitive airspace, through surveillance and reconnaissance. Stealthy by design and by nature, it remains unknown how much this aircraft costs and how many the USAF plans on purchasing.