Why O Why O Why ??

[dillwhacker]

Just thinking...
Why do we dedicate one of our precious channels to setting the gyro gain?
I mean most of us adjust it 3 times on the maiden flight, and then never ever again, don't we?
How many people adjust it during a flight, or between flights? How many of us switch between HH and Rate mode during / between flights?
Why can't the gyro / FBL just remember the last setting and release the channel for something else?
Just a legacy thing?
It just seems a waste of an RC channel that could be used for something interesting...
Just thinking out loud ...

[jwatts007]

Skookum you can lock the gain value in the gyro...

[dillwhacker]

Makes sense TBH, adjust, lock, then release the channel for something else.
Seems a shocking waste of a high speed high resolution channel.

[Grumpy]

You can fix the gain in the Vbar too if you like. It is actually handy to be able to change it in flight though because if you run different headspeeds then you want to have different gain values to match the headspeed (higher gain at lower headspeed)

With 18 channel to play with it's hardly an issue for me In fact hardly anyone would try to fly a CP heli with less than 6 channels so in practice it's not really an issue.What else do you want the channel for?

[tomatwalden]

Gyro channel on Vortex is used for flight mode selection - gain is set via datapod

[myxiplx]

Not an issue on Spartan either. You can assign a channel for tuning via the datapod if you wish, but otherwise they're all available for you to use.

[trillian]

Not an issue on Spartan either. You can assign a channel for tuning via the datapod if you wish, but otherwise they're all available for you to use.

That felt a bit strange to me at first because I was so used to having at least a tail gyro gain channel on the TX but from the very first time I setup a Vortex I just put all the settings in the unit and only had to bump the tail gain up a little on the maiden flight using the datapod and then never needed to touch it again. You can setup a channel to have live control over one of the gains if you want but I have never done this.

On my helis it has been nitro governors that have required the most fiddling in the past.

[KevDavies]

That felt a bit strange to me at first because I was so used to having at least a tail gyro gain channel on the TX but from the very first time I setup a Vortex I just put all the settings in the unit and only had to bump the tail gain up a little on the maiden flight using the datapod and then never needed to touch it again. You can setup a channel to have live control over one of the gains if you want but I have never done this.

On my helis it has been nitro governors that have required the most fiddling in the past.

I use the remote adjust when tuning a fresh setup, but when its flying ok I disable it. minor tweaks using the datapod is simple enough

[p4ddy]

why? because if you fly multiple packs all at different performance capabilities the gain changes. I would fly with new lipo's then ones a couple of years old & i'd have to wack the gain right up again. I'm speaking about gyro's not fbl.

[pchristy]

I mean most of us adjust it 3 times on the maiden flight, and then never ever again, don't we?
How many people adjust it during a flight, or between flights? How many of us switch between HH and Rate mode during / between flights?

If you only ever do 3D flying, that may well be true, but for any other style, varying the gain dependent on flight mode is almost essential. In F3C / Sportsman's, you want the gain as high as possible for the hovering manoeuvres to keep the tail locked in - but as soon as you climb out and wind up the RPM, the tail will wag like mad unless you reduce the gain. And if you set it for the high speed stuff, it will be too loose in the hover.

Again, certainly when I was attempting to fly competitively, whilst HH was good for hovering, I certainly DIDN'T want it in HH for the aeros. Trimming for a nice axial roll, as little as 1% on the tail rotor trim can make a significant difference. Now I know I'm getting on a bit, and my eyesight isn't what it used to be, but I found it very difficult to get the tail lined up to better than 1% accuracy after the procedure turns. That's what the fin is for - to keep the tail in line at speed, and I don't want HH messing it up!

A similar argument applies to scale too, although it isn't so critical there. Because of the side area of the fuselages, a lot of scale models can be quite tricky to hover cross-wind, so you want a lot of gain, and probably HH for hovering. However, once you start flying around, you will need to reduce the gain to prevent wagging, and probably want to lose HH as well. Scale turns always seem to look more natural without HH. Well, when I'm flying, anyway!

[Rob Barnes]

Im a Vbar and V Control user so I can use banks to change my tail gain and also 3 different set-ups depending on head speed etc . It makes life so simple !

[Grumpy]

Im a Vbar and V Control user so I can use banks to change my tail gain and also 3 different set-ups depending on head speed etc . It makes life so simple !

Yeah, but that still takes up a channel... Not like that is a problem because we all have enough channels, and I personally would rather use some of them, at least it helps justify spending the money on a decent Tx!

[Planehazza]

I don't see the problem? SBUS has 18 channels (AFAIK 20 if you include the proportional ones). I think eventually everything will move away from traditional PWM receivers in favour of XBUS/SBUS etc.


I'm using something like 11 channels on my G4 and still have room to spare

[dillwhacker]

Ahhh well you lot are a couple of rungs up the sophistication ladder compared to me with a DX8 and BeastX !
Interesting though that some fly with such precision that they want different gains for different manoeuvres within the same flight.
Cheers, thought provoking....

[Grumpy]

Interesting though that some fly with such precision that they want different gains for different manoeuvres within the same flight.
Cheers, thought provoking....

I'm a long LONG way from a precision or or advanced flyer, loops and flips and some inverted is about my style. But even I use different tail gain on my different flight modes. Higher headspeed mode needs much lower gain otherwise the tail shakes like mad. If i use the high headspeed gain value when flying at lower headspeed the tail is loose.