You’re right. Just checked an old VFR chart. Notodden and Geiteryggen TIZ were indeed class G although radio was mandatory.
And come to think of it, I do not think class F was ever used in Norway. Was it?
I can’t remember having flown in E either, but at some point E was there. The airspace has been evolved at a glacial paste, a little bit here, a little bit there. Just a couple of years ago all D airspace was to be converted to C, but it never happened. There was a big change just before Christmas, but other than that it changes so slow and subtle it’s like watching paint dry.
