Quote:
Originally Posted by kach22i
I've not see one of those ( in person), but something very similar was at a Hoverrally once and it could not fly in a straight line, it kept swaying right and then left.
I suspect the flat sides were acting like a rudder in the crosswind and kept redirecting the nose/bow. I do not recall if it had the vertical stabilizers.
http://futuristicnews.com/wp-content...istic-car2.jpg
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Arrgh! Dimples are not a panacea. They are used on golf balls because their shape is so bad that another mistake can improve it. Specifically, the transition from air getting out of the way to air returning is so abrupt that the air is thrown right off, expanding the wake more, unless it has been churned up to stick on the surface. There are a few other examples of boundary layer turbulence being used to help fix a shape, but they don't get into the popular literature as a trap for the amateur.