Island Images - Ronaldsway Air Traffic Control
RAF Irish Sea Area Chart from 1951 showing the airways in the area and the M/F Radio Range facilty 'MYI' at Cregneish which operated on 391 Khz.  VHF marker beacons are at Lynas, Wallasey and Warton.
 1950s ATC Pages
 
An Island Images webpage © Jon Wornham