FWIW, at highway speeds the panels don't actually experience a lot of high velocity air movement. The air gets pushed up over the roof forming a bubble. If you've seen a boat's wake, it's the same thing, but extended vertically up and over the roof. The actual air movement within the couple inches of the roof where the panels are is pretty low. Most of the forces the mounts need to handle are related to the RV bouncing on rough roads.
__________________
2021 Thor Four Winds 26B on Chevy 4500
|