I recall speaking to an air traffic controller a while ago. The controller told me about an "exchange" he did with some private pilots. The pilots visited him and his colleagues in their radar centre and spent some time there. Then they all jumped in their respective aircraft with controllers as passengers and went flying.
This controller said that it was one of the scarriest experiences he'd ever had. He was in a light aircraft, flying around at a few thousand feet, looking for traffic, and could maybe see two or three aircraft. Yet less than half an hour before, he'd been sat in front of his radar screen, and he
knew there were dozens, if not hundreds, of aircraft that he couldn't see at all.
FFF
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