We used to send a few bits from Norfolk to Stavanger. On one trip, the door popped, a latch problem on the Piper Twincom. 'Cors, you cant push it out to slam it, so it stayed a bit ajar. Since life is not kind, the brushes on the heater motor quit at the same time. So our hero was getting a bit chilly. He moved into the middle row and wrapped himself in the rugs that were there for the passengers, putting his head up to check the a/p heading and other minor points, from time to time.
So, Piper, I would sugest you do the trip in summer and get a nice thermal suit..