Hood/Foggle Replacement?

[HerrJeremy]

I was heading home from another IFR training flight, when I had this thought for a new cheat-proof view limiting device. Just thought I'd throw it out there, maybe it's been done already, and maybe it's against regs; I don't know.

What if all the windows in the plane were coated with a polarized film, and the student wore glasses polarized in the other direction. The result would be completely black windows for the student, and normal view for the CFI. Plus, I also believe that having the polarized windows would cut down on glare as well.

What I don't know is if this film would result in a discoloration on the windows; do the the FARs allow tinted windshields in AC?
Anyway....just thought I'd share my thought, maybe it's already been thought of....or maybe someone out there can make millions on the idea.

 

[skyking1976]

Not exactly sure about the FAR's, but I know that if you were to tilt your head slightly to one side you may be able to see past the polarization. In a sense, many airplanes already have a "polarization" to them in the form of windscreen heating elements. Interesting idea though! Maybe you could perfect a way so you couldn't "cheat".

SK