Just curious what the "Norm" seems to be out there for dialing out roll coupling. I have never really been one to fly dual rate or mix things out. I usually set my rate and expo where I like it and adjust my flying to suit the aircraft. Performing my own mixes at the stics as necessary. This works well for me most of the time and I can usually be quite precise if I want to. I am really starting to get loose with my Euro the past few weeks, performing manuvers I would not normally attempt with a turbine plane due to the $$$ involved but...... I guess I am just getting extremely confident with with the planes (and my) limits and ability. The Euro has a significant coupling affects in knife edge that I think I want to start mixing out so I feel more comfortable about those 5' knife edge passes. The plane really wants to roll hard at application of rudder and tends to pull towards the top of the plane. I assume the best way to eliminate these would be to program a condition on a switch so the mix is only applied when I want to enter this flight attitude? Since I was never a "3D" or "Pattern" flier, I am curious how you guys are setting your mixes for various flight attitudes.
TIA,
Todd

Todd,

Just mix rudder to aileron in the direction needed. Since the mixing requirements change with speed you'll never get it 100% perfect but you can get it reasonbly close. Certainly close than hand flying it. Most airplanes exhibit this coupling regardless of attitude so there is no reason to turn the mix on and off. Just leave it on.

If you fly a JR-10X use code 64. That's a dedicated Rudder to Aileron and Rudder to Elevator mixer screen.

If you fly Futaba I can't help but I'm sure there are plenty of people here who could.

Well.... I thought about that doug but.... Since the plane tends to tuck towards the top I will be mixing down elevator which means if it is on all the time, if I need rudder application in level flight the plane will dive?? IE: on landing, I use rudder to correct it will add down elevator at the same time. Correct me if I am wrong but.... isn't this a bad thing?

Hey Todd, a mix will remove the "bad" tendencies during all stages of flight and this is a positive attribute. The only difference as Doug pointed out is that the degree of compensation will usually increase with increased airspeed. Perhaps you could also mix the percantage of correction to your throttle. (I don't know if this possible with your 9C or 9Z off the top of my head since I am a "program by the book" kind of guy.) Also this may bite you if you get into a problem on knife edge and back off the power, then you will be left with less mix to compensate for those negative tendancies at what is likely to be a high speed.

Perhaps you can get Tony to give you some tips.

Antony

If that rudder application always causes pitch to the canopy, then the down elevator you get from the rudder application shouldn't be a problem. The thing to keep in mind is you're probably not talking about a lot of pitch mixing. Sneak up on it regardless. Start small and make small adjustments until the airplane is doing what you want. You could always assign the mix to the gear switch too so that it is off when the gear is down.

Makes sense I guess.... I think I'll start this weekend with it on a switch till I get it dialed in and comfortable with it. I can always set it to Null once I have it locked in. Thanks for the input guys...

Todd, does the Euro roll into or away from the rudder? And is it consistent from Euro to Euro? Thanks.

Rocketman, best I can tell all the Euro's do what he's talking about. If you hit any siginificant rudder in flight, get ready to roll.

Todd, you'll find the mix helpful, I've done it before on other airplanes including the isobar. I'm not comfortable enough with my Euro yet to start hanging it on the tail, but I'm interested to know how much aileron you have to program in to get it close.

Sean

Yeah, but which way does it roll, and do all of them go the same way?

all you have to do is activate the mix with the gear switch and make your adjustments when the gear is up. Then when you land the mix will be off and all is good in the world.
You can also use the flap switch, I.E. flaps up mix on, flaps anywhere else mix off.
Tim

Yes Mark,
The euro rolls into the rudder, they all do it! It's not unusal for a delta although I was surprised just how much coupling there is on this plane.
Thanks for the tips guys, I'll set things on a switch to get it set up and see how I like it.

Todd