It's not "Prop Wash" that is the problem. WING TIP vortices are the BIG Deal
http://en....ttp://en.wikipedia.org/wiki/File:Airplane_vortex_edit.jpg
Thanks Dave...
Here's the SkyVector Map for the area we flew last week. When the other guys weren't looking, I took Nate, or Dave G, or someone to go hit as ma...; St Ignatus at the South end of Flathead Lake.
Dave...