W110 France to Switzerland
I'm trying to plan a route from France (RLP) into Switzerland (WIL) in an unpressurised aircraft. All goes well at FL90 except for a segment of W110 of about 10 miles between HR (Hericourt) and LUMEL across the border, which apparently has an MEA of FL150. I can see no terrain or restricted airspace that would require such an MEA.
Does any one know of an operational reason for the restriction? One possibility is to file that short segment VFR -- would that work?