Originally Posted by
wnewbury
There is a theory that 2 elevator servos gives you a slight safety benefit due to the redundancy. That if one elevator servo screws up, you have a chance of being able to save the airplane. Like if the ailerons go, you still have the rudder. I am NOT volunteering to test the theory.
I have had this happen on a Goldberg Ultimate 1.20 Bipe and a TF 1/7 scale Mustang. Saved both planes when otherwise they would have been lost. Do a YouTube search on dual elevator servos and the RSD 8000. You Tube and Google are your best friends many time when you don't know how to do something.
Maybe this will help.
http://rcheliguy.com/global/airtroni...ra%20Stick.pdf