249 Ionosonde ?. Braybrook ?. Hazell A.F. Wilkins Admiral Sir Henry Jackson B.G. Pressey C. Morris C.S. Fowler Chilton Chris Scott Ditton Park G. Ashwell J.E. Herd Jeremy Curtis John Bradford John Smith Karl-Heinz Mueller L. Hainsworth Lerwick Matthew Wild Meteor Radar Mike Harris Ocean Surface Current Radar R. Naismith R.W.N. Mason RADAR RAE Aldershot Richard Henwood Robert Watson-Watt Stanley V. Norris W. Allen W. Bailey W.M. Curtis