How do u tune the tail with a vbar ready yge?

[Phil777]

Issue I'm having is with a new esc, I'm getting a tail kick (30 degrees to the right) with collective pitch that I can't easily tune out.

I recently put yge vbar ready esc on my goblin 500 (mini v bar blue) and raptor e700 (silverline). And since my tail issue developed both machines

Before I was running jives in mode 4

Is there way I can run the vbar ready escs with out using the vbar gov? As I think the vbar gov is causing the tail issue (or hiding)


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[ClubCRASH]

Have you tried routing your wires in other places? This solved it for one of my buddies.

[Phil777]

The esc wires?


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[HeliSmith]

Disable the governor in the software. Just because you're wired for a governor doesn't mean you have to use it..

[DoubleCH]

If you haven't disabled vBar governor yet, perhaps try reducing gain and collective addition. IMO, default collective addition is way too high.

[velocity90]

For vbar gov, choose plane middle only. No heli mode, the yge gives poor gov performance with heli middle because it switches to plane middle once you are over a specific thr input.

If you learned endpoints correctly with prog card connected to the esc out on the vbar, softstart will be fine. Startup power auto. Also tweak low end point slider for best softstart. Usually -102 or -104. Release thr hold and heli should spin without delay. When it does, raise value again.

Gain around 30. The higher the more the tail will suffer.

[beans07]

I am running 2 YGE Mikado's ESC's and found that on both that you really need to run a gain around 16 (always less than 20). IF I didn't I had tail issues, chirping noises and poor performance.

[DoubleCH]

Originally Posted by velocity90

For vbar gov, choose plane middle only. No heli mode, the yge gives poor gov performance with heli middle because it switches to plane middle once you are over a specific thr input.

OP says vbar-reday YGE, I assume that means the one that can do gov-off-x3. The problem you mention is because vbar not ready YGE heli modes don't just smooth out spoolup speed but also throttle response so you'll have to run plane modes to respond to vbar gov's instant throttle changes but then you get jerk right on spoolup (the 1st rotation). The gov-off-x3 feature is to untie the spoolup and throttle response of plane/heli modes. You can get heli mode super smooth spoolup yet get plane mode instant throttle response.

[S.Millar]

When I am using YGE and Vbar on a heli for the first time I turn the Gov gain way down or off. I tune my tail and cyclic gains and get them working good. From there I slowly up the Govenor Gain 5 points until I notice chirping or tail issues. From there I back off a few points.

On a 500-550 machine I am always around 30 on the Gov gain.

YGE Vbar Mode
Plane fast
4% spool up

On my X5 I had to add 5-10 points of collective add.
On my X4ii the default collective add was good (its a beast!)

[velocity90]

Originally Posted by DoubleCH

OP says vbar-reday YGE, I assume that means the one that can do gov-off-x3. The problem you mention is because vbar not ready YGE heli modes don't just smooth out spoolup speed but also throttle response so you'll have to run plane modes to respond to vbar gov's instant throttle changes but then you get jerk right on spoolup (the 1st rotation). The gov-off-x3 feature is to untie the spoolup and throttle response of plane/heli modes. You can get heli mode super smooth spoolup yet get plane mode instant throttle response.

I can't and bailout doesn't work then.

[DoubleCH]

Originally Posted by velocity90

I can't and bailout doesn't work then.

If your YGE doesn't support gov-off-x3 then you're stuck with plane mode which may get tail kick on spoolup. Set motor-off value to as low as possible without having delay when switching throttle off to spool up. This will give the least amount of tail kick possible. Even if you have vBar-ready YGE that supports gov-off-x3 and run heli mode super smooth spoolup you can still have bailout to work by running idle-bailout mode. What this does is that when you do auto, vBar will keep motor idle (won't affect auto performance). As long as motor is idle, YGE will never trigger super smooth spoolup and that means on bailout YGE will spin up to speed quickly regardless of heli mode spoolup.

[velocity90]

Originally Posted by DoubleCH

If your YGE doesn't support gov-off-x3 then you're stuck with plane mode which may get tail kick on spoolup. Set motor-off value to as low as possible without having delay when switching throttle off to spool up. This will give the least amount of tail kick possible. Even if you have vBar-ready YGE that supports gov-off-x3 and run heli mode super smooth spoolup you can still have bailout to work by running idle-bailout mode. What this does is that when you do auto, vBar will keep motor idle (won't affect auto performance). As long as motor is idle, YGE will never trigger super smooth spoolup and that means on bailout YGE will spin up to speed quickly regardless of heli mode spoolup.

Im flying yge+vbar gov since day one. Programming heli middle for spoolup gives poor gov performance. Multiple helis.

Helped someone a view weeks back and tested it again. Still not solved. Heli bailout doesn't work when you program Heli for spool up. Also I have no kick. Program the low end point correctly and you won't

[DoubleCH]

Originally Posted by velocity90

Im flying yge+vbar gov since day one. Programming heli middle for spoolup gives poor gov performance. Multiple helis.

Is that with gov-off-x3 compatible YGE though? You can only use heli mode if the YGE is gov-off-x3 compatible AND program heli-middle (or fast) then gov-off 3 times then plane fast. For those YGEs that CANNOT do gov-off-x3, then of course heli mode gives poor gov performance because you cannot untie heli mod throttle response with heli mode spoolup.

Helped someone a view weeks back and tested it again. Still not solved. Heli bailout doesn't work when you program Heli for spool up.

It absolutely works with heli mode. As I said you need idle bailout, not just auto bailout. Plus idle bailout doesn't activate until after reaching full governed HS for a good few seconds. If you reach full governed HS but don't wait a good few seconds before triggering idle bailout throttle (~20-49%), then motor will NOT maintain idle but comes to complete stop instead and will trigger soft-start on bailout.

Also I have no kick. Program the low end point correctly and you won't

I program the motor off point and everything else correctly for my Protos stretch (470 blades) with plane mode spoolup, even with the lowest startup power it will kick right when the motor starts. I even tried disabled vBar governor, turn on plane mode on YGE, and then increase throttle from TX (directly sent to YGE) 1% at a time until motor starts and it always kick. My friend said he had no kick with his Protos non-stretch (430 blades) and when I looked at it in-person I realized he just basically ignored the kick and eventually his OWB blew, even though he has the motor-off point and everything else set correctly. He's now back to YGE internal governor and heli mode.

Here is how smooth my motor starts with heli-fast mode. Super smooth motor start not any hint of kick even if I have the heli on flat smooth glass surface.

My Stretched Protos with 13T for 470mm Blades (5 min 2 sec)

[velocity90]

Yes off course vbar capable esc

Good to hear you don't have the problem. It's weird because everyone else has and yge knows but have not yet fixed. You must have special ones:rolleyes:

Now i will only reply on topic here.

[DoubleCH]

Originally Posted by velocity90

Yes off course vbar capable esc

Good to hear you don't have the problem. It's weird because everyone else has and yge knows but have not yet fixed. You must have special ones:rolleyes:

Now i will only reply on topic here.

No special YGE. If you do gov-off-x3 sequence and YGE supports it, heli mode spoolup with plane mode throttle response works fine all the time with idle bailout when set up properly with vBar governor settings. The only cases I hear having bad governor performance are the ones running heli mode throttle response (i.e. gov-off-x3 not supported or not activated by user if supported).

Back on topic, vBar governor doesn't cause tail kick, bad settings with vBar governor will. Like Millar suggested, tame down governor performance by turning down governor gain and/or expert feature settings. Tune the tail and slowly bring back up governor performance.