Vortex generators
Westaussielame,
I quite often find myself thinking about that (what you've said regarding spar fatigue). Particularly when I enter a CU cloud and I see the tip tanks wobbling about in my peripheral as the wing flexes...oh what a feeling!
I wonder what's going to happen before ANYONE, be it the manufacturer or operators speaks up and says "hey guys, do ya think maybe the spars are getting a tad tired....?"
As handy as they are, I wouldn't have thought the VG kits reduce fatigue, lifespan or spar strength...
520.