The Machynlleth Loop is an area of west Wales which has become popular for military low flying and an anti-clockwise flow system was put in force to prevent "head to heads". It's become a favourite spot for aircraft photographers, although it's a bit of a hike to the best vantage points.
Military helicopters are allowed to go against the flow as long as they remain below 200 ft agl, which I admit is great sport and takes a bit of nerve, especially as the fixed wing pilots can get a tad 'sporty'.
I've flown the loop a number of times but never had the opportunity to take any photographs (for obvious reasons), neither have I knowingly had any pics taken of me!
Mike, when I get back to work I'll look up the exact location and pass on the details.
Cary
"We attack tomorrow under cover of daylight! It's the last thing they'll be expecting ... a daylight charge across the minefield .."