Is it required with a HF radio below FL250 on the Greenland-Goose Bay leg?
Goose Bay from Greenland will take you through the Gander OCA, so HF is required.
No HF means crossing further north. BGSF-CYFB is the most favoured route. It will also mean avoiding Shannon OCA but that’s no problem if routing Scotland-Iceland.
220kts.com has some useful information to get you started.
Horrible, but was on commercial carriers…..
Ahh, the plot thickens. When will all be revealed?…. 
Horrible, but was on commercial carriers…..
Your old hangar space is currently occupied by a Challenger being repainted…………unless that’s yours ;-)
This site has some useful notes on GA transatlantic crossings
