The K-Series spaceport control droid, is one particular type of droid that controlled spaceports.
A spaceport control droid, also known as a controller droid, a spaceport controller droid, a traffic control droid, or a flight controller droid, represented a type of class three droid intended for the management of spaceports. Some of these droids had a bipedal design, possessing two arms along with a head shaped like an overlapping clamshell.
M-3PO, also referred to as Emtrey, was a 3PO-series protocol droid who fulfilled the role of quartermaster for Rogue Squadron beginning around 6 ABY. Prior to the Battle of Hoth, Emtrey underwent modifications by an Alliance to Restore the Republic lieutenant named [Losca], which included the addition of a spaceport control droid's head.