Thanks for all the repiles and the info.
I did I suppose realise that most heli companies get involved in one way or another at the GP, as a few years ago I was lucky enough to be flown in and experienced it first hand. What I was interested in was who used the larger types S61 and Puma and if these operated from AIrfields or tempoarary sites.
The other info I was after was a contact for those responsible for ATC.
Thanks for your help, I will follow up the info you have already provided.
Cheers
RS2