jabird,
Ok, see where your coming from.
All departures off 23 at CVT impact on BHX. Not so much in the quieter winter, but very much so in the summer. There is an airspace issue, and that issue directly impacts BHX's customer airlines, and hence directly BHX as a business.
Not sure how SNN,CRK is routing, but the initial routing inside the BB zone is still an issue which effects BHX arrivals. Southbounds are the same, and DO delay BHX inbound flow. Often when CVT launches a southbound now, BHX can't get a 'straight in' onto 33. I would guess it takes me about 4mins more each time for that.
Having said that, under the airspace charter, CVT are EQUALLY entitled to use the airspace. No argument. However I do understand BHX wanting an input to the inqyuiry when CVT use materially effects it's business.
Also, BHX PAY NATS to manage the airspace around BHX. PAY NATS then have to provide equal access. Bit of a strange situation really!! CVT don't pay for the BHX ATC provision that they receive..........
30W