About 12 years ago I accompanied a CPL in a Jet R down to south of heathrow, he explained the London heliroutes and said I would be flying them but under strict control, we flew down H9 to be held short at Heathrow, then allowed to proceed to the very centre of the complex and hold above the centre green , we then watched three inbound and four leaving then as the last one of the four left the ground we were intructed to transit and get out of the H9 Heathrow area, it was a real impressive and smooth operation in controling us at the same time as A/C were arriving and departing, I know its all changed now but do they still allow centre holds between the runways, or is Heathrow totally restricted.?
Peter R-B
Lancashire