Align 3G Servo wheels???

[Made2Fade]

Ok so theres to sets of holes on the Align servo wheels that come with your 3G kit. Now the manual says to use the inner holes. What im wondering is ... has anyone used the outer ones? What was its effect (ie did it just increase cyclic response)? What effect did it have on the gains and generally?
Reason im asking is i have used the inner holes on my 600 FBL but now have one fitted to my 700 (which already had the single holed Align servo wheels on). Do i change for the double holed wheels or stick with the older single holed servo wheels which i have already got on the model and perfectly setup???
Im guessing if you use the outer holes/or older servo wheels that it will have an effect on the 3G's gain. As this is like giving it mechanical gyro gain.
Thoughts please?

One thing i did notice... if you watch the setup video that Bert Kammerer done he is actually using the older (single holed) Align servo arms/wheels. So im guessing it will be perfectly fine to do the same. Just wondering exactly what it will affect overall.

New Align Servo Wheel/Arm set

Old Align Servo Wheel/Arm set

Thanx

[Allen Key]

Wish I could help out mate but as you know my knowledge of helicopters is very limited lol . Im off tomorrow so give you a bell when i get home

Dave

[Made2Fade]

kinda know the answer but just wondering if anyone has actually tried it and seen a diffrence???

[Geek]

I might try it as I striped one of the new ones today
but I do have the old flybared ones still

[Made2Fade]

Let me know how u find it plz Paul, intrested tp see if theres much diffrence and how the fbl controller hsndles it

[barney]

The Bert vid was produced before the alternative wheels where available. With FBL there is a 'certain' ratio between the servo and swash to make them work to the optimium. Bit like servo horn length on a Tail servo needs to be right.

If youve played with a V Bar system you will see the incredable lengths they go to when initially programing to make sure your travels/servo horn length/ Pitch so it all falls in that 'sweet' spot.

Brian

[Made2Fade]

My thoughts exactly Brian. Now just wondering how crucial it is on the 3G system. And whether you can actually get away with using the old servo wheels?
Thanks

[acwman]

My thoughts exactly Brian. Now just wondering how crucial it is on the 3G system. And whether you can actually get away with using the old servo wheels?
Thanks

It is pretty crucial.. as your thoughts suggest. As with the tail servo, the longer the arm, you end up having to reduce the gain or otherwise you will get a wag. On the 3g on the swash, too long an arm, you will end up getting a nod on the heli. You end up reducing the gain on the swash to get rid of it, but the heli will not have the locked in feeling of what would have been on the 'optimum length' arm.

I have tried it on a 3g 450 heli, though not on the bigger helis, but will be the same effect.

[SRH990]

I'd say its pretty critical, it's all about resolution. Flybarless systems don't have mixers and so the travel on the swash is directly passed to the blades, with mixers you have a lever and so the end connected to the swash can be longer than the end to the blades, if you go flybarless and left it at the original servo travel, you'd have 18 degrees of pitch each way and 15 degrees or cyclic (say). You could get around this by reducing the swash mixing but will end up with very low %'s and very little servo travel which will have a direct effect on the resolution of the servo, by fitting smaller arms or moving the balls inward on the servo wheels, you then require more servo travel, will end up with better swash %'s and will gain greater resolution on the servos for the same collective/cyclic movement.

Years ago I converted a Logo 500 to flybarless using the CSM Cyclock with 2 720 gyros but forgot to read the manual and left the balls on the servo arms in the same place - what a disaster, it was all over the place and nigh on unflyable. After consulting the manual I moved all the balls inward on the servo arms and then had a reasonable amount of success.