We just had our TT out for the first time in a very long time, and are looking forward to getting it out more frequently here in 2021, with a least 1 long trip planned for this summer, but hoping to get a few shorter (3-4 day weekends) trips in as well.
But something came to mind recently, I recall seeing large wind deflectors on the tops of TV's years ago, some were just simple wings, others were more elaborate, like the large "spoilers" you might also see on top of the tractors of 18 wheelers. Almost all big rig tractors running line haul have some kind of wind deflector on top of the cab to direct air flow up and over/around the trailer.
So I did some internet searching and found surprisingly little information on this. There appears to be 2 main brands of air deflectors for TV's, Aero Shield and Aero Plus. The Aero Shield folds flat when not in use, but seems to be intended for larger vehicles than my Escape. The Aero Plus is intended to be mounted onto the stock roof racks on many SUV's like my Escape.
I did a search here on this forum expecting to find discussions on these, but didn't find anything. Just curious if anyone has any experience with these air deflectors, would like to hear it, positive or negative. I'm thinking they may cause a bit of wind noise, maybe cause aggressive wear on a roof rack not designed to carry that kind of force, and that maybe why I don't see a lot of information about them is because they don't work.