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Main Discussion > DSX9: Dual Rates or EPA linked to throttle position
 
 
flingwing
Heliman
Location: London

Hi all savvy DSX9 programmers

Does anyone know if there is a way to reduce your control throws with an increase in power on a DSX9? So instead of having a switch controlling EPA through your dual rates setup, have a mix whereby EPA is linked to THR. I must confess to this being a plank related question, (please keep the abuse to a minimum) but as outside of this one little plank I am solely a heli adict, and this is pretty much the only forum I partake in. Also i know you guys are the most knowledgeable when it comes to programming these radios , (there's the butter-up line).

Thanks
09-30-2008 09:39 AM
HOMEPAGE  
 
 
BarracudaHockey
rrMaster
Location: Orange Park FL

What are you trying to accomplish?

A multipoint mix might do it.


AMA 77227
http://www.jaxrc.com
09-30-2008 01:28 PM
 
 
"Cam"
Veteran
Location: Asia

He wants progressive dual rates.

Normally you have less throws as you fly the plane faster.

I've got six "PROG.mix"ers so I would mix throttle with each channel to reduce its throws as you increase the throttle. You will have to play around with it!

You will want to assign all the mixers to a switch so you can turn them off if you want to do low-speed manoeuvres with more throttle, like a flat spins, stall turns, tumbles, hovering or stall flying!

That is a great idea you’ve had and I’m going to try it! It’s going to take a bit of playing-around though!

DSX9
TRex 600, 500, 450
Hurricane 550
Yak 180, 40% Extra - 15S
Custom eRaptor 700
09-30-2008 01:51 PM
 
 
flingwing
Heliman
Location: London

I dont quite follow you Cam but let me know if you get it right. I thought that this would be a breeze but the more I get into it the further it gets from me.

I currently run my rates against flight mode (IU switch) and have it set up pretty well, so that I have two additional setups outside of the slow (or normal) setting which I have to switch to as I get faster, (I'm running this on a 52,000 rpm 2-wind racing wing so very, very fast - hence the need to tone it down as it gets faster). Next I thought I could use the autoland feature of our radio's, (which is set to react to a certain stick position) to activate the flight modes at pre-determined stick positions. However it seems to work the wrong way round, (in that you can select an autoland setting through the flight mode switch, or through the throttle lever, but you cant bypass this and have the throttle stick activate a flight mode.

The problem is that you are trying to "mix" a channel with a "setting" and I just dont know if this can be done.

Any thoughts?
09-30-2008 02:07 PM
HOMEPAGE  
 
 
"Cam"
Veteran
Location: Asia

I didn't even know my radio had that!

What I meant was simply mix the throttle with each channel on an independent programmable mixer and then assign them all to the same switch. This would give you varying control throw across the throttle range.

Although you do realise, you take off on full throttle, and that is also when you want full throws?! So you will need to be able to turn it off!

DSX9
TRex 600, 500, 450
Hurricane 550
Yak 180, 40% Extra - 15S
Custom eRaptor 700
09-30-2008 02:11 PM
 
 
flingwing
Heliman
Location: London

he he "you take off on full throttle"... not this puppy you backhand pizza toss this little 800mm beast at 1/3rd throttle and it bounds out of your hand like a greyhound on 'roids .

Ok, I see what you are trying to do with the mixing of each channel with throttle thereby using up several mixes. I (kindof) tried this but hit a brick wall pretty quickly. The problem here is that mixing channels implies one channel "doing something" as a slave in response to another channel "doing something" as a master... so getting the elevator to move up, (or down) as a slave to throttle opening is a simple mix and would naturally be done to trim the plane out for different speeds if, say your thrust line isnt perfectly set up... however limiting the end point setting of the elevator in response to the throttle opening seems to be a whole different ballgame. In this case the elevator is doing nothing in response to throttle... in effect the only thing being effected is the "dead" space at the top of the elevator range, which is widening.
09-30-2008 02:36 PM
HOMEPAGE  
 
 
flyingmotorbike
Heliman
Location: Lancs UK

could you not just up the expo in each flight mode
09-30-2008 08:02 PM
 
 
flingwing
Heliman
Location: London

Sure FlyingMotorbike, and this is what I am doing. However, it requires you to click the switch one way as you increase and the other when you decrease speed.. this is a hot flying wing and you can only fly around at full throttle for a few seconds at a time before you have to back off, (well at least I do).. this means a lot of clicking back and forth of the FM switch. I was just interested if there was a way to link expo, (and more importantly Dual Rates or EPA) to throttle so that it would be a smooth transition from high expo and minimal control throws for fast flight, (when throttle is wide open) to low expo and maximum control throws when the throttle is closed, (and we are gliding). I'm a little surprised that this can't be done on these computerised radios... mmm, i'll keep at it but there is definately no quick fix here.

Fling
10-01-2008 08:16 AM
HOMEPAGE  
 
 
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Main Discussion > DSX9: Dual Rates or EPA linked to throttle position
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