Take a look at any old (VFR) charts of the North Sea, say in a straight line between Hull and Denmark. You'll notice that huge parts of this track take you through restricted-looking areas, with legends such as "Southern MDA", "Nordsoe 7", "Fanoe-TSA" etc etc, along with others shown as refuelling areas etc. Some of these are too high to bother with, but most have interferingly lower limits !
If I wanted to take a trip from Hull to Denmark (for example), then (a) can these areas be routed through, (b) is permission required, and (c) if so, where would I get it ?
FF
