Aileron Reflex
 

After a few flights on my GP G202 ARF, I find that I am very uncomfortable landing it at the speeds required to avoid dropping a wing-tip (tip-stall). I have heard that sometimes reflexing the ailerons slightly will help prevent this. Have any of you tried this and if so, how did it work? The plane was assembled totally stock and weighs 11.75 Lbs. I would be interested in how much reflex was used and what was the overall result. Thanks for any and all replies. Bob C.

Aileron Reflex
 

Bob C.:

I've found it much easier to land at slower speeds to raise both
ailerons 1/8" to 3/16" at TE. This washout is the same as used
on gliders to eliminate tip stalling with rudder only control. The
drawback is that snap rolls will be slower; but I would rather have that than sudden tip stalls on landing. You may also have to
move cg forward about 1/2".

Randy

Aileron Reflex
 

If you have a computer radio that has an airbrake switch it may be used also. Just set it up as mentioned above with a little down elevator coupled in to reduce nose pitch-up when activated.
When you're making your final, flip the switch and let her settle in.

Aileron Reflex
 

What's the wing loading on that baby? When you say it comes in fast, how fast are we talking? I wasn't aware that the 202 had that kind of thing going on_Bob

Aileron Reflex
 

You might consider wingtip plates as well; lowers stall speed considerably with no flight drawbacks as far as I can tell. I put them on my Yellow Cap to reduce tip stalling. It's just a flat plate, same shape as the wingtip, about 1/2" larger all the way around.

Aileron Reflex??
 

That is almost exactly what my GP Giles 202 would weights in at with MDS 1.48 for power. Using standard size hi torque servos, mini on throttle and NiMHi AA 1600 bat. pack. Just hard to keep them from that 12 pound mark. You can slow down a lot for landing by using the ailerons as flaps which are set up in the landing mode of most computer radios. When swithched to landing mode the ailerons come DOWN below a certain throttle setting. You can also couple in some elevator the help neutralize the pitching tendency. I have not heard of any bad tip stalling tendency on this plane....even with dead sticks. Are you sure you are not a bit too much on the tail heavy side?
PilotFrog

Aileron Reflex
 

Thanks guys for your comments, keep them coming. I'm learning all the time.
I guess part of my problem is that I have always flown sport type models such as the Dragon Lady, the GP SuperSportster, the SIG Somethin-Extra. All of these planes will slow down for a full-stall three point landing without a hint of tip-stall. I can't say the GP G202 is any worse than any of the 120 size ARF's out there but it sure has me nervous when it comes time to land it. So far no catastrophe's other than running off the end of the runway at the cost of a broken prop, but I sure would like to be able to slow it down just a bit more in the air before touchdown...... Bob C.