Quote:
Originally Posted by Piwoslaw
Some cars are fine-tuned to have the external mirror inside a pocket of turbulence, or at least partially inside. Folding it allows the outer edge to hide inside that pocket.
Tuft testing would show which car/mirror combo would benefit from folding.
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This is an interesting observation. I have purchased some kniting wool and plan some tuft testing on a variety of items. After reading your comment I will definitely do some testing around the mirror.
My original objective was to hang some tufts on the back window of the Insight and see what they tell me about the departure angle that Honda chose. I suspect it is fine for the stock tail length, but I want to see.