Quote:
Originally Posted by NeilBlanchard
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I know what those red wavy squiggles do, I used them to break up sound nodes before on my hovercraft (back in 2008).
Hovercraft - Experimental Skirt Project - Page 2 - Boat Design Forums
I think in this application they are attempting to stagger the release of air from the body to deter or delay vortex formation.
Regarding the front end, several Pike's Peak winners/runners have been using similar tools for years and netting good results.