Excuse my ignorance of UK regulations, but why can't the RPT aircraft use Stornoway without ATC?
In OZ, RPT jet operations into either, tower operations out of hours, or into uncontrolled airfields, occurs at a number of places. For instance Ayers Rock is an uncontrolled airfield in central Oz used by Qantas 737s. We have Dash8s using airfields when the tower isn't open. This occurs at a number of outstation towers.
So do UK regulations prevent RPT aircraft into an airfield when the tower is unmanned? Or is it a company requirement, or a local authority requirement?