RAF Schleswig on a map from 1956 - The airfield and the approach areas are protected by the restricted areas GE 57 and GE 62. The white "E" in the circle symbolizes the Eureka radio beacon
, used by the British at this time. The square around the airport symbol with the "V" underneath shows an VHF direction finder. The black star stands for the coded beacons which is characteristical for British airfields. Eggebek
are not shown yet, those fields will be (re-)opened later. The airway RED ONE led from Helgoland radio beacon to Roskilde beacon in Denmark.