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HomeAircraftHelicopterRadio - Mikado VBAR Control System › V control and gov issue
02-01-2018 03:58 PM  4 months agoPost 1
Jeff polisena

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westpalmbeachflorida usa

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I set up vbar gov and vcontrol on nitro SAB 690 . I used eyectach and set headspeed .. the rpm number on vcontrol screen was double . Now here is where I’m lost ... it’s was flying fine ,rpm was holding and then heli started screaming . This was after a few days of flying . I went in vcontrol and lowered gov rpm to actual rpm and now headspeed is correct . So I have another heli setup exactly the same way and it is not reading correct rpm on vcontrol as the other heli did at first .

I stole it ,flew it and gave it back ;)

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02-01-2018 04:24 PM  4 months agoPost 2
Flyin for Jesus

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Troy, IL. 62294

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Sounds like you're using a backplate sensor and its picking up the rod pin on the crankshaft then the counterbalance so you get two per rev.
Some put washers on the sensor to space it away a little to get it to pick up the pin only.
This is all assuming you have gear ratio and things all set correctly.

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02-01-2018 04:39 PM  4 months agoPost 3
Jeff polisena

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westpalmbeachflorida usa

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I’ll try that, back please sensor is touching back plate . Thank you .

I stole it ,flew it and gave it back ;)

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02-14-2018 08:11 PM  4 months agoPost 4
Jeff polisena

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westpalmbeachflorida usa

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It is confirmed , thanks for the help . I moved back plate sensor away from back plate and VC gov works as it should .

I stole it ,flew it and gave it back ;)

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02-14-2018 10:12 PM  4 months agoPost 5
Flyin for Jesus

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Troy, IL. 62294

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Nice, thanks for getting back and posting the resolution.
Happy flying.

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HomeAircraftHelicopterRadio - Mikado VBAR Control System › V control and gov issue
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