Quote:
Originally Posted by some_other_dave
|
The fiberglass fairing on the upper leading edge when applied to a bus,with a 140mm radius ( 5.91") reduced drag by 12%.
By placing the straight-sloped ramp visor in front of it will cause the flow to overshoot the roof,causing immediate flow separation and higher drag.
Texas Tech's Aero Lab has investigated this sort of thing and it's REAL BAD.