Quote:
Originally Posted by j-c-c
My thinking was a rider has to be completely a high drag obstruction, and a small to medium windscreen might deflect enough air smoothly to lower the total overall drag, even by adding some drag of its own, ideally there would be a sweetspot, but I'm not reading that so far with these replies.
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As freebeard explained, it matters less how you punch the hole, and more how you close it.
The boxfish has an abrupt square face, but because it tapers at the rear, it's pretty efficient.