Hi i have a futaba 18mz can anyone help on how to set up elevator flap mix? It seems very complicated

A more up to date way is use flight conditions and set your trims to separate for each condition. Then as you select your different flap setting simply re trim the model on the fly.

Thanks bob i wil try that

In the 18MZ model menu go to "program mixes" and activate a mix then set your flaps to master and elevator to slave.You can have the mix activated by your flap switch. There is a graph showing you what is happening,you can also add delay to slow down the elevator mix input.I would have a play around with your mix functions until you get the hang of it.The Futaba manual although very detailed is not always easy to understand best to have a play dry first.Phil.

I'm not at home, but I think there is an even easier way. I believe there is a window that just lets you alter elev to flaps... same one sets up crow. Love this radio!

I will have airspeed, engine temp and rpm via telemetry on my comp arf corsair. If the moki gets too hot, it will open the cowl flaps, get near a stall, radio starts vibrating and tells me to speed up... long way from the gold futaba I had as a kid where if you wanted to reverse the servo, you moved it around in the plane!

Flight conditions are a very useful tool in flying jets but have nothing to do with learning how to set a up "program mixes".You must first learn how to set up a mix and adjust amount of mix/curve/speed etc . If you later choose to use flight conditions then your mix can be be on or off in each condition as you wish.Phil.

With all due respect Phil, you are wrong.

When you use flight conditions on a 18MZ(and I believe on JR radios to not cause a war), you can have different trims for each flight condition. My standard setup is to have 5 flight conditions for every model. These are normal(no flap, no UC), takeoff no UC(first flap, no UC), takeoff UC(first flap with UC), landing no UC(full flap, no UC), landing UC(full flap with UC). For every one of these conditions I have the trim separated so that no matter what config the model is in, it flies straight and level. Normally I just have the elevator trim separated between each condition as this is the only trim that changes with Flap/UC but I have got one model where the aileron was also separated as flap induced a small roll.

In addition, for each condition, I have a condition delay so that the surfaces don't move instantaneously to their new positions, they move slowly(totally configurable time BTW). This delay is defined to be the same as the time to move the flaps.

So as you can see mixing is an old fashioned way of achieving the same result but to acheive the 5 different trims levels I woud need 4 mixes, 8 if I wanted to retrim both elevator and Aileron.

BTW Flight conditions are extremely powerfull as you can also change exp/ATV(AFR in futaba terms) and many other params.

Geoff.

Yes Geoff I agree with you and you can set up each flight condition as you wish as you have stated,but the original question was how to set up Flap/elevator mixing with no mention of Flight conditions.I just explained how to it that way as a start.Phil.

Another option is to use an offset mix. One switch and you can control four functions, ie: two flaps and two elevators. You can dial them in to where ever you want including servo speed and delays. Great for timing the elevator to the flap to eliminate any pitch up/down.

I agree with Geoff, that's how I set my models up. But to actually answer the question Futaba have provided you with a mix just for this purpose. It's called Camber/flap to elevator mix in the Model menu. This menu can also run within flight conditions.

m

Ah ha Geoff, all that switch flicking i hear is you :-))

I fly all my models with a single setup. Must be lucky that all my models behave nicely in any state!!!! I must need a bigger fancier model to really stretch my 18mz setups!!!

Mark,

Not sure if you are trying to be funny but all the conditions are controlled by the 2 position undercarriage switch and 3 position flap switch with logic switches( tell me you know how to do this?) so no extra switch stirring for me.
Geoff

This will solve your problem:

http://www.horizonhobby.com/products...-only-JRP12TXX

Easy as pie....

1. go to the model menu
2. click on prog. mixes button
3. pick #1 slot
4. change the upper right button from "INH" to "ON"
4. set the master as flap and the slave as elevator
5. adjust parameters as neccessary
6. much easier/more intuitive than JR (couldn't resist ;-) )

-Sean

Thanks everyone that works sean can u also help on how to get both rudders turned into airbreaks?? Out wards? Trying to use airbreaks on a delta wing but this mix i can not find how to do, in manual or transmitter sorry lads" i have been a jr man from day one managed to get around 80% of radio programing but mixing part is solid as manual doesnt explain it that clearly

Hi Raj-

I have not done this before but I am sure it is quite possible. No time to tinker with my 18MZ until the weekend but I will play around with it and return with my findings.

Thanks-
Sean

Raj, doesn't sound to difficult. Go to model menu and set up two different mixers. One for the right rudder and one for the left.

The master channel could be one of your sliders. I usually use the left outside slider for airbrakes.

Use the same master for both mixers. The slave for one will be the Right Rudder, slave for the other will be the Left Rudder. The trick is that when the slider is all the way to the "air-brake off position" pick the leftmost point to be neutral (0%) on both graphs. I like using the "line" function. You can easily set it up to do whatever you want. on the right most point with the Master (the slider) at full deflection. Pick a deflection that gives you what you want to cant out on the rudder. maybe like +30% on the Right rudder and -30% on the left. You can even delete all the points in the middle of the line so you just work with the endpoints. A little confusing at first but VERY powerful mixing tool on this radio.

When setting up points don't overlook the little rolly thumbwheel at the bottom of the touchscreen. I sometimes find it a lot easier to dial in a number rather than peck it in with your finger or a stylus. It allows you to look at the plane and dial it in rather than look at the radio.

Best of luck!

Steve<br type="_moz" />