Also, have you guys seen any of the theory and testing associated with KF (kline fogleman) airfoils? They are stepped foils and seem to show that the steps associated with a fairing from the vehicle to the fairing and then from the fairing to the towed trailer might not penalize the drag calculations very much and might make the fairing easier to design and construct...
KF Airfoils :: explained by Dave Powers | RCPowers.com
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