The thing that puzzles me is the Armoured Glass comes up and then swings back over the gunsight. And, there is a cutout in the glass for this... see the movie again and you'll see what I mean. The wiper can't wipe across the AG or it would be ripped apart, it has to wipe across the inside of the canopy if it's for clearing condensation. Or, it's for the outside for rain. Looking at the outside of the a/c during the movie you can't see the wiper at all to tell where it is.... inside or out. Rob, from watching the movie the AG can't separate the compartment, as can be clearly seen. It's radius is smaller than that of inside the canopy, and the two don't touch to make a seal.
Maybe Scott can clear this up for us as to where the wiper is located and it's supposed to do. Clean yes, but where?

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