1. Military low flying helicopters train as they fight; most are based in south Uk, so you're more likely to see them down here.
2. I don't think that the Red Arrows are necessarily exempt from Rule 5. And what about their flypasts over London.....I'm not entirely sure about the rules pertaining to non-operational low flying by the likes of RAFAT though; perhaps things would become clearer if one of them suffered a birdstrike over the Mall..........
[ 02 December 2001: Message edited by: BEagle ]