> Can anyone give me some insight in to adding flaps or a speed brake to >an existing stock fuselage with retracts? Thanks Tim KR2 N7038V +++++++++++++++++++++++++++++++++++++++++++++++++++++++
Tim, My OPINION is that the small advantage of flaps over a speed brake is not worth the extra effort of installation, at least in the "standard" KR configuration. The most basic speed brake I've seen was on a Dragonfly. It was hinged at the rear and had a rope with a T handle attached on the front edge. The rope was knotted at several points and pulled through a bracket with a hole that was slotted. The rope was pulled out of the slot, the brake let down to the desired angle and the rope was pulled back into the slot with the knot holding it at that angle. I don't know what air loads there were on the rope but the builder claimed it worked just fine. I would advise extreme caution on airspeed when first testing a system like that. Other front hinged systems would still be easier to install then cutting out and installing flaps, IN MY OPINION. Your results may vary! Larry Flesner