I served as the second pilot on a Turbo Saratoga on the longest flight of my life last week.

Route of flight over the North Atlantic
I hade been looking for a way to learn how to fly across “The Pond” for years, and I was finally getting my chance! A customer in Denmark wanted his new plane delivered and we would be delivering it during the coldest, darkest time of year.
One of things we had going for us is that the Saratoga in question had Long Range tanks, so there was no need to install supplemental fuel tanks. At about 17 gallons per hour fuel burn, we could fly for about six and half hours without running out of fuel. We would cruise around 15,000 feet and 160 knots, needing to wear supplemental oxygen. Conveniently, the Saratoga had an integral oxygen system so all we needed to do was plug in the mask to the ceiling outlet.
We actually hit a winter “heat wave” and found temperatures only slightly below zero (without wind chill) in Iqaluit Nunavut, Sondre-Stromfjord Greenland, and Reykjavic. At this time of year and at the latitude at which we were, the sun did not rise, but provided a dawn-like glow for about 5 hours during the day.
At Iqaluit, they get reciprocating-engine aircraft so rarely, they only carry AvGas in 50-gallon drums, and you pay for a whole drum, whether you can load it or not. (I thought that the excess went to feed the lineman’s personal snowmobile).
Our routing afforded us the privelege of communicating with ATC over normal VHF frequencies, but most of the flight was out of radar contact, and we would go for 20 minutes at a time out of voice communication as well.
Here are some pictures of our technical stop in Wick, Scotland.

Coming in to land in Wick, Scotland

Aaron in his immersion suit in Wick, Scotland
As a perk, I got to spend Christmas day on a self-guided tour of Copenhagen. My partner had left for home the day before.

Aaron tours Copenahagen after the Saratoga delivery