Barfly

Some things I've noticed with models is that flaps tend to be on a switch which, when activated, deploys the flaps at full servo speed, the flaps just pop down. When this happens so fast there is no time to stabilise the model, the plane usually jumps up and down while the pilot tries to control it, untill speed and trim has time to settle in. Sometimes elevator re-trimming is still required.

I believe that if flaps are lowered slowly and elevator trim is properly mixed to flap position, the plane will be much better behaved and the pilot won't have to work to stabilise it.

I notice too, that some models require 'up' trim and some need 'down' trim when flaps are down.

I know some guys who refuse to use flaps, when they are there, because of the way the plane behaves when lowering them. They simply haven't set-up the plane properly.

Cheers from the Barfly.