Gertrude - on the subject of 'unlicensed' runways - what does this actually mean?
Yes, I did try reading up on this, but the only conclusion I could come to was "one that students can't use".
At an airfield with some licensed and some unlicensed runways, clearly the airfield must have the facilities required for the licensed runway. The unlicensed one might not have been checked against various standards like obstructions in the climb-out or whatever, but one can't really imagine crashing and burning on the unlicensed runway and the airfield managers deciding not to send out the fire engine because it's only legally required for the licensed runway!!