Thank You Sir,
I like to think about snaps the same way full scale and models alike. However you CANNOT snap a model like full scale or you will break it. In full scale you must very abruptly pull or push the elevator to near its maximum extremity. After this, immediately induce autorotation through the use of rudder. In Model AIrplanes you must use Aileron to complete the snap. Model Aircrfat wing loading does not allow for the break like full scale. To finish the snap return the elevator to neutral as well as aileron and rudder. Sometimes you will need to go past neutral to get a clean exit. This is totally dependent on speed.

Rates for snaps:
Pattern Rates

AIL 35 degrees
ELEV 25 degrees
Rudder 30 degrees


I only fly with 2 rates. One for Pattern and the other for 3D with no CG change. It simplifies things immensely, but you have to learn to fly the airplane when it is this touchy.

Hope this helps,
Mark Leseberg Jr.