On Tuesday, February 18, 2014 1:50:52 PM UTC-7, Don Johnstone wrote:

OK here is a whacky idea. A V shaped boom with the point to the rear of the

rudder, the release mounted at this point. The two front points mounted to

a pivot, through the fuselage above the wing, near the CoG. The V

arrangement can pivot up, but not down. The space between the arms has to

be sufficient to allow full rudder. Would only work for low wing

monoplanes.

Well as long as were are drawing on envelopes, how about a bridle attached to each wingtip of the towplane, with the towhook at the apex of the bridle, able to slide side to side (to prevent rudder stalls) while the bridle pivots up during kiting so the force just pulls the towplane higher! To drop the glider, release one end of the bridle and the towhook just slips off.

Or just teach the stupid glider pilot to fly the correct tow position!

Of course, a good winch solves this problem nicely....

Kirk