As for Kristiansand I have 3 entries for that port in the stock game
1\1\38 to 8\4\40 as neutral
9\10\40 to 2\5\45 as axis
3\5\45 to 31\1\45 allied ?????
So according to that there are 6 months when it disappears and at the end of the war it goes back in time
http://www.subsim.com/radioroom/show...t=95813&page=2
Show me your sources for allied airbases on the Azores and the Canary Isles