Runup Speed. Problem with Nitro Governor

Hello Mikado Team!

Heli - Trex 600 Nitro. Engine - O.S. 55HZ.
I use VBar nitro governor mode with 1600 rpm headspeed.
RPM sensor mounted on engine fan.

After switching channel "Motor" from "Idle" to "Run" engine very fast gaining rpm. Because of this, when during clutch engagement main rotor blade fold in the holder. You can see on the video (time 0:07) https://youtu.be/1PbEFtCS7Ks

or image



My governor setting



My expert governor settings



As a result of my attempt to more tighten blade in the holder - "Extreme vibration level" in the log.

How can I make a more smooth start? Otherwise, I can break blades or clutch.

Sorry for my English.
Best regards, Alexey

PS. Necessary adjustment of the curve "time - percentage of throttle" by user.
I think this only way to make a smooth start-up for a particular engine and clutch.



3 mal bearbeitet. Zuletzt am 24.08.2015 15:39 von alexn.

Quote:

After switching channel "Motor" from "Idle" to "Run"

is this shown in the pc soft?

You must switch from "stop" to "run" (can go over idle, but MUST be at stop before)!

Idle is for AR - and gives a fast spoolup!

To clarify: Stop is not Motor off (still idle) - this must be done with the cut switch.

Summary:

Stop - Motor at Idle - slow spoolup
Idle - AR Idle (!!) - fast spoolup (but must have been on "Run" once before)

Throttle cut - Motor off.

regards (EN) / Gruss (DE)

Rainer Vetter

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Hello Rainer,
Thanks for the quick reply.
I tested yesterday, governor works as expected.

Thanks!

Best regards, Alexey

regards (EN) / Gruss (DE)

Rainer Vetter

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Posting and answering - please use a PC and a standard keyboard. Answer all questions fully, take the needed time, don't forget probably requested attachments.

Für Posts und Antworten bitte einen PC und eine richtige Taststaur benutzen sowie alle Fragen vollständig abarbeiten. Nehmt Euch Zeit, beantwortet Rückfragen in Ruhe und vollständig.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Für Einzelkommunikation bitte ausschließlich Email verwenden! - PN, Messenger, Chat usw. werden nicht bearbeitet.
For single user communication please send a email only! PM, Messenger, Chat etc. won't be read.