The US Air Force received an additional Lockheed Martin MC-130J Commando II Special Operations Forces tanker aircraft on October 24th, 2013. A USAF crew ferried it from the manufacturing plant in Marietta, Georgia, to RAF Mildenhall in the United Kingdom.
The MC-130J is a special operations tactical airlifter/tanker aircraft. It has more powerful engines and other features unique to this version of the Super Hercules. Formerly known as the Combat Shadow II, it is deployed for missions requiring clandestine single or multi-ship low-level aerial refueling of Special Operation Force vertical and tilt-rotor aircraft and/or infiltration, resupply and exfiltration by airdrop or landing on remote airfields.
Source: Lockheed Martin