RE: Elder 20 ,Can you help please?
Didn't mean to scare you off. It just needs a lot more rudder to fly well. The stock rudder makes it handle a lot like a parkzone J-3, add rudder and wait, and wait and... you get the idea. More rudder will help it turn when you command it to.
The gear turned around just helps it stop bouncing.
And I appologize, uncontrolable is a bad word, if anything it is overly stable. I used uncontrollable because you can't make it turn in what most people call a reasonable amount of time, it just flys nice and straight. Mine had the now rare HP .21 four stroke, so quiet a lot of folks thought it was electric. It is a very nice docile flyer, just not enough rudder for my tastes.
I eventually added strip ailerons. Even made it more fun.