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T-REX 450 › t-rex 450 pro tail wag problem
02-04-2010 04:25 PM  8 years agoPost 1
vicent99

rrApprentice

spain

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Hi , I have been flying the 450 pro with an align 750gp and the ds520 servo without any problem durin 80 flughts more or less.

but last day I went to flight it and I notice that a tail wag apear , and I don´t know why pecause the day before flew perfecly . the heli never has been crased

can be the ds520 dying or the gyro maybe ..

so what could happend any reason?????????

thanks for your help.

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02-04-2010 04:50 PM  8 years agoPost 2
michael88997

rrElite Veteran

Lewisville,Tx

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Did something get bumped and knocked off alignment?

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02-04-2010 05:16 PM  8 years agoPost 3
vicent99

rrApprentice

spain

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I don´t think so , but what are you refering to.

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02-04-2010 05:37 PM  8 years agoPost 4
Steff Giguere

rrProfessor

St-Eustache, Quebec, Canada

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Sometimes in transport the heli get kicked around things get out of place.

Team Synergy, Rail blades, Team Scorpion, V-Team

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02-04-2010 05:43 PM  8 years agoPost 5
vicent99

rrApprentice

spain

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I will look all the tail system , the only thing that I remember is a little play in the tail linkage but I don´t think it could be the reason .

I have read in some forum that could be the mainshaft bearings or even the mainshafts that is bended with any crash??????

thanks

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02-07-2010 06:27 AM  8 years agoPost 6
ken22golf

rrApprentice

Bridge City, TX

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Possibly a bearing went bad which can affect the gyro.

Did you notice any extra vibes that day?

Did you try to just drop the gain? Sometimes the foam gyro tape can somewhat change in hardness through time and the gain will have to be tweaked for it. If you didn't try to just drop the gain until the wag stopped, that's what I would do first.

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02-07-2010 06:45 AM  8 years agoPost 7
snjbird

rrKey Veteran

Kissimmee, Florida- USA

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Mine did this, try taking off your tail blades and check you don't have a grip coming loose.

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