ORIGINAL: Charlie P.
ORIGINAL: 2slow2matter
If you have a high pitch prop, that could likely be your problem.
also, you could mix in some spoilerons if you want (upward deflection). This acts to kill the lift. It won't really slow the model much, but it will definitely force it to the ground. I wouldn't recommend it, though. Plus, spoilerons are never a good idea because you are (in effect) going to force (or at least influence) the outboard part of the wing to stall first.
As slight amount of spoileron actually works like wash-out and
prevents a tip stall in barn door ailerons. Not in full-length ailerons, though. That's wht the outboard ailerons flip up with the C.R.O.W. and Butterfly settings in gliders and uber-aerobic models.
http://www.fly-imaa.org/imaa/hfartic...t/v1-4-10.html
Sorry,
I meant to say flaperons induce tip stall. Don't know why I put spoilerons. You are right about the wash-out. To further this discussion just a bit (for the OP of course, I know most of you guys know this basic stuff) inboard flaps work well for several reasons.
Number one, they create drag that slows the airplane down. Number two they extend the trailing edge of the wing, giving more wing surface area, and more lift at slower speeds, and number three they (when the time comes) force (or try to force) the inboard part of the wing to stall first, so the plane sits straight down on the runway while the wingtips continue to produce lift until the plane is firmly on the runway. This creates lateral stability during the landing, especially the last part where the wing finally stalls and the plane touches down. After all, eventually you HAVE to stall the wing to land, it's a matter of how you do it, at what speed and altitude you do it that determines how good or bad the landing is.
I will go back and edit the original post so as to eliminate some confusion. Thanks for pointing it out.