Would it be possible to add Thule (BGTL/THU) to the airport database under Greenland? I know that the US Air Force have a base there, but Air Greenland operate regular passenger and cargo flights there, and SAS has had regular charter ops.
According to wikipedia (sourced from the Danish AIS), the runway (08T/26T - the T being true heading due to the proximity to the magnetic North Pole) is 3047m with asphalt surfacing. It would provide a good tech-stop location for trans-polar flights, especially in the 60s and 70s.