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T-REX 500 › Trex 500L Tail Twitch (not wag)
03-28-2015 01:18 PM  3 years agoPost 1
The_Widowmaker

rrElite Veteran

Bear Valley Springs, CA

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Running stock 500L on 6S. Tail holds well during maneuvers and punch out but if I go into an inverted hover the tail twitches. Its not a wag. Best example would be if the gears were missing several teeth in a group. The tail will just give quickly and then return. I have checked everything I can think of. Not sure why it only happens inverted.

"I'm a Virgin.. I'm just not very good at it. "

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05-09-2016 02:42 PM  31 months agoPost 2
Richardmid1

rrProfessor

Leeds, England

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It could be that you have a bent feathering shaft or blade grip or notchy thrust bearings in the blade grip cause the blade to go out of track only when inverted/negative pitch. The only other thing it could be is a notchy top mainshaft bearing which would have more force on it when inverted causing increased vibration.

60% of the time, it works every time!

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05-09-2016 05:05 PM  31 months agoPost 3
Heli Fanatix

rrVeteran

Fountain Valley, CA

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If you are running GOV, switch to a V Curve and see if it still does it.

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05-15-2016 07:27 PM  31 months agoPost 4
Solmanbandit

rrElite Veteran

Tucson , AZ

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You can try and lower the gain a couple of points. Sometimes the gain may seem good, but may not be during during certain maneuvers.

Trex 700E / Trex 500 ESP - Ikon/ HD 500 - Ikon 2/ Goblin 500 Ikon 2

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