On occasion I have a flight “across the pond.” No, it’s not an ocean crossing, although it sometimes feels like it. These flights cross Lake Michigan, and require a bit more planning than flights over land.
When you fly around the Great Lakes, it’s taken for granted that if you’re in a single-engine piston aircraft, you have to carefully examine the risks and mitigations. Don’t want to cross the lake at all? Fly around it and spend that extra time to stay over land. Not good weather for a crossing? Same deal.
