This is probaby stupid simple, but I can't get it. I have a 9C radio, not a super, and I want to reverse a servo, in this case the elevator, with a switch. In other words, when the switch is up, servo is normal. When switch is down, servo is reversed. Anyone????
Paul

This would work on a 9Z or higher transmitter, where you could set that up in a condition. However, it can't be done with a 9C. If you mixed elevator with itself and reversed the mix percentage, you'd wind up with zero control movement when you move the stick. We don't know of a way to make the elevator reverse with a switch flip.

Yeah, I tried that, Bax. Just as you say, flip the switch and the elev wouldn't move at any stick position.
Paul

It can be done on any set that has at least 2 standard type of mixers.

Mixer 1 - used to cancel the output movement - use value of -100% on both ends of stick travel.

Mixer 2 - used to reverse the output travel - use values of -100% on both ends again.

Select both mixers to work from the same switch.

When the switch is off, the travel is normal, when you activate the switch, the travel will be reversed.

modtron
Oxford UK

OK, you learn something new every day! We tried Modtron's procedure, and it works like a charm! Reversing a channel "on the fly" is not something normally done in aircraft, so the reversing function is what people would normally use. Of course, you can't use it while flying.

We used Mix1 and Mix2 in our 9C, and turned trim on and link on on mix1, the same on mix2. Both were set up with -100% for both ends of travel, and we put them on the same switch with "down" as the activating direction. When we flipped the switch, the channel's travel was reversed.

OK, so what did you set as master and slave? Elev for both??
Paul

Hi Bill,

Always happy to pass on knowledge.

I do a lot of Futaba FAQ programming for Ripmax in the UK, so I get asked these sort of questions from time to time.

Paul, Yes, use elevator for both Master and Slave channels.

Regards,

Nigel Brackley
modtron
Oxford UK

I just ran across this thread and I'm curious as to why would someone want to reverse elevator with a switch? Perhaps the starter of this thread could explain?

I'm going to try this flying inverted. I'll be 3+ mistakes high to be sure.[:@] Just an experiment to see how it works. I get real mixed up inverted and thought reversing the elevator servo while inverted might help. We'll see............

I use it to fly inverted as if i was flying normally . have to remmeber to switch when going back forth i usually do the switching high and come down for an inverted pass climb and switch again