Nitro governor idle setting help!

[RontaryUS]

Art, great, thanks for chiming in!

As I mentioned in above posts, with few tricks, I get my gov working great on all my nitros. I was not expecting this to be a priority. Art did explain me at IRCHA that they were focusing on the e-gov and other improvements first and that improvement on nitro may come later (not in v4.) but he was adament to hear my feedback and took notes as he did with many others. Glad to see it is almost there.

Omerco et al, can someone have a look at the RPM in the log, I have an issue with my SK viewer and can't open it for now...

Heli$, your gov setup are OK (ramps, gear ratio...). Rather than going down on the gov gain, I'd try going up. Go to 60 and see how it performs, post a log if possible of a comparable flight. I do not know what engine you use but most likely you are not running the optimal HS which can contribute to the issue as I mentioned previously. Try to get it in the power band of your engine i.e (engine RPM at max power/gear ratio=optimal RPM on the head). Make sure the mid range is tune properly on your engine.

That's all I can suggest for now. Let's see what the logs say...

[Heli$]

My engine is the YS91SRX and the manual says the practical operating RPM is 2000-17000 rpm. With my gear ratio, that is a max head speed just below 2100 rpm. For now, my head speed of 1850 feels plenty powerful. I'll increase my governor gain from 50 to 60 and see how it goes.

Thanks for all the help guys.

[RontaryUS]

Good, let's see how it goes. Try 2000rpm, the engine will be happier. You can reduce the pitch slightly to compensate if you do not want the heli to be too reactive.

By the way: NX7+91srx+SK= great combo!

[jwatts007]

I run my Guvnor gains around 60 never noticed any problems with leaning at the top of a climb out with a hard stop...hard stops are something I have been practising..Art any chance of making the limp home mode adjustable the 70% frightens the life out of me using a YS 120...if we could adjust to 50% it would be great...

[RontaryUS]

The YS120 loves running wide open [emoji6]

[dominator]

I would also like to see the nitro gov adjustable to add more advance throttle on cyclic movements. It seems to be only reactive and not proactive. Stationary flips make my engine bog more than full throttle climb outs even with the gov gain at 70. I think adding in some throttle mix with cyclic would help a lot.
And adding the gov lowest throttle limit like others have said. The gov will close the throttle all the way and it takes it a while to catch back up.

[RontaryUS]

Heli$, I got a chance to look at your log. The rpm holds pretty steady throughout the flight. From the whole log, I see 2 instances where you gave hard positive pitch then negative. It translates into a loss of less than 200rpm then gets back about 200rpm above target HS before stabilizing. It is pretty good on a nitro.

Have you tried gain and other things I mentioned before? What is the outcome? If you post a log, I can check.

One more thing you can do: decrease slightly the override in the drive system tab by 10-20 points and see how it does.

Side note: seems your tail servo is setup at a 250Hz frequency. Possible but rare, you may want to check this.

[Heli$]

I haven't flown yet with the higher governor gain.

The Savox rudder servo I think is speed at 250. I'll double check though

[Heli$]

The tail servo specs say it's 250-333 frequency. Which does the skookum operate best at?

Thanks for looking at my file Rontary US. It's really appreciated!

[RontaryUS]

Use 333hz, better refresh rate and the sk handles it no problem

[Heli$]

Done