Its not putting it on that you should worry about - its getting it off. the real aces can do it in a few seconds with one hand
ohh those were the days.....!!
But seriously PB, that sounds interesting - we use sun shades on the inside of the cockpit windows, they keep the heat out well but you end up with windshield o/heat ECAMs. Something on the outside sounds good. So if you just drop em on the ground b4 dep, you must have to have a few at each station then?
Kevlar you say?