Back in the 60's. Turned up at Binbrook on a pre-arranged visit to find a very quiet camp and not much joy around! On arriving at our destination section we asked "why 'The Atmosphere'?" Overnight the OO had been presented with a signal in the early hours and, having misread it, called out the station! Regrettably, because there had been no inkling of a forthcoming exercise, only a handful of airframes were found to be 'S'. The hapless OO practised that art for a long time afterwards.
