First of all Holdings are not meant to be used in a normal circumstances. For some reason London is the only ANSP that consider them as a part of the approach. Trying to sequence A/C from holding patterns could cause major problems in case something goes wrong. We have seen that several times so far. CFMU is giving them 45 A/C per an hour but in reality they are only landing 37 A/C. Somebody mentioned before in one of the chats that London is developing the software to act on the A/C coming from the Europe in order to "stream "them. I have to say that this is exactly what CFMU has been doing for the last 15 years. I have a feeling that CFMU and London should sit down and try to find compromise on how to go ahead in Air Traffic Flow Management for the future.
