Jesus! IMC terrain following by map and pencil - you must all have had balls like footballs...
(Random)
How long did the far-eastern dets go on? Govt. decided to withdraw from east of Suez by 1971 in '68, but didn't Heath extend that to the mid-70s, at least for some of the facilities, and some of the Maltese Vulcan photos are 77-78 (I know it's not in the far east).