Friday, March 18, 2016 - 10:25 am, by: Andrew McKellar(Toymax)
Kind of what I figured.
Would they not be better with a "ramp" up the front face of the vertical rear fence, similar in profile to the canard, which should reduce drag by tipping the airflow up and over the fence?
Or
Is it acting like a Gurney flap, in which case should it not be as high as you have it?