ST Mawgan played host to Vulcan in 80/81 ish.. I recall a particularly foggy night on the airfeild, when I met one coming down the taxiway in the opposite direction. Quick visit onto the grass in the Minivan saw us out of harms way - We'd taken a wrong turning at one of the runway crossing points. - Easily done in the dark and fog.
I seem to recall they were hooked up with some rubber things to comms posts along the Northern parallel taxiway,