Thanks!
Hi again
Thanks for your help. I am going to assume the crew will already have their survival suits on as they bring them to muster and soon as word goes up that they are going to evacuate they will all have them on.
All crew will have BOSIET training and probably quite used to helicopter transfers.
I will assume they do not refuel before TO but if they need to they can stop at one of the other helidecks nearby (there should be plenty of options in the North Sea).
So I think the best estimate would be 3-5 minutes to load and then minimum 2 minutes until the next helicopter lands. If we assume 3-4 helicopters are shuttling to other rigs nearby then it should be feasible to downman fairly rapidly although I guess weather will be a big factor (in which case, there are lifeboats).
Any other thoughts or comments do let me know. You've been most helpful!