YP
There is a problem with getting more controlled airspace to the east of the present ScTMA and B4 because of our military colleagues and the use of D510 and D512. We would love more airspace to the east. This would help us split the Glasgow and Edinburgh arrivals earlier.
In the Scottish TMA you must have 2 minutes between departures following the same route, as long as they are in the group. Jets are generally in the same group. But there are slow jets, C550 for example that may require increased spacing. All the SIDs are designed to give ScACC 5NM separation( the minimum they can use) 30NM from the departure airfield at a speed of 250KTS. How often are you given free speed outbound?
The traffic is controlled within the constraints of controlled airspace and the complexity of the traffic situation around the ScTMA.