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Home✈️Aircraft🚁Helicoptere-MSH Protos, Mini Protos › Mini Protos ESC Question?
04-03-2013 01:49 AM  6 years ago
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Duosport

rrNovice

Morral, Ohio - USA

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Mini Protos ESC Question?
Hi Guys, I keep loosing head speed on my Mini Protos? Always about 1/2 way through flight. I can hear motor slow down. Tried 4 batteries, changed motor bearings, lubed all drivetrane bearings, checked all solder connections. I am starting to think YGE 60 amp ESC is going bad. On 1 flight motor completely shut down. V-Bar flight log shows nothing. Any thoughts!
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04-03-2013 01:59 AM  6 years ago
wrongler

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Brewerton, New York

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I would guess its time for a new ESC. Is the esc warm when land it?Bill Whittaker
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04-03-2013 02:31 AM  6 years ago
Duosport

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Morral, Ohio - USA

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Sorry, can't get to the ESC with the heli assembled it's really packed in the frame to check temps. Motor is cool and battery seems normal. The problem has been going on for some time. Just keeps getting worse and worse. At first I was thinking I was imagining the head speed loss.
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04-03-2013 02:31 AM  6 years ago
AWittleWabbit

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O.C., CA

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By odd chance, did you plug the pack in with the throttle not at zero somehow? I bumped my trim and didn't realize it. It threw the gov way off when I took off. Maybe you can check your throttle trim and be doubly sure to initialize with the throttle at zero. Not likely but its worth looking at if you haven't already.Heli-itis sufferer.
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04-03-2013 12:21 PM  6 years ago
Duosport

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Morral, Ohio - USA

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Very good! I will recheck radio and rebind. When I power up I have throttle hold on so ESC should see zero throttle. But, at times I have forgot to hit throttle hold and ESC saw this and did power up. I will try rebind tonight but I am guessing I need new ESC. At least I am not re-buying a $500 Kontronik! Thanks for the help guys!
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04-03-2013 12:23 PM  6 years ago
Duosport

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Morral, Ohio - USA

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Whoops! ESC did NOT power up with throttle hold off! Typo!
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