Open TX

For once I actually agree with Phil

One of the new 6 channel Spektrum TX will do everything you need it to, I cant remember the model of the club trainer TX's, but one of those would fulfill your requirements

Ernie - The latest Club Trainer transmitters are :

Spectrum - DX 6e

May I suggest you go that route and you will be fully compatible with the club gear.

Colin.

Just curious, has anyone played with 'Instant Trim' in OpenTX?

You hold the sticks for straight and level flight, then flick a switch and the stick inputs are transferred to the trims.

Very interesting.
I think I see what you mean about being curious Chris. I didn't realise that you need to have three hands to work Open TX, or doesn't it have trims on rudder?

You surprise me David, surely the rudder trim is simply sorted on the ground, i.e. the only place it's really useful , you taxi up and down the grass and trim the rudder so that the plane goes in a straight line. So with that one taken care of once you are in the air you can happily take your left hand off the throttle stick and flick the "instant trim' switch, and voilà, a perfectly trimmed plane.

I've used instant successfully on slow moving planes that are easy to control and it does a really good job providing you are flying straight and level, the important thing to remember is that you are trimming all control surfaces at the same time, If the aircraft is a long way out of trim and say you need to pull back on the stick to keep it level, as soon as you use the trim switch the plane will climb until you center the stick. I tried using it on a foam MX which i was just getting used to and got it flying fairly well and trimmed, the weather was calm but the sun was low and bright in front of me, I waited till I was out of the sun flying level and flicked the switch with disastrous results the plane banked violently to the left and I was unable to control it. What I had done is, I had been worried that the plane was going to far away, unintentionally started to bank, flicked the trim switch which went to full aileron trim and I wasn't quick enough to save it.