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T-REX 600 › Erratic Tail Behavior
01-03-2011 04:26 AM  6 years agoPost 1
Bigrcfan

rrNovice

Spring, TX - USA

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Greetings!

I hope somone on here can shed some light for me as to what maybe wrong with my heli.

While out flying my 600 ESP, I ws distracted somewhat and ended up landing a liitle hard than I normally do.. By no means was there any damage to the heli as the impact wasn't hard aenough. However, about 5 minutes later I spooled her up again in my usual position (tail facing me) and noticed for the first time a slight tail wag to the left that immediately went back to teh proper HH position of the gyro . From here, I spooled down and double checked everything with nothing seemingly out of place. Once again I spooled up and after about 20 seconds observed the tail making the same slight movement as before. From here I brought the heli up to about 15 feet off the ground and made slow FF movemets from left to right and didn't observe the tail to be acting strange whatsoever. The slight tail movement and correction only seems to be noticeable after about 20 or seconds on initial spool up. what do you guys think it could probably be, the tail servo, gyro or som other piece of equipment This really concerns me as I do not want to have a crash due to this situation.

My setup is as follows: Scorpion 4025-630 motor, CC 110 HV ESC, Align DS610 on cyclic, Align DS 650 for tail, Spartian ds7060 gyro, Super WR Hercules BEC, Spektrun AR 70000 receiver and finally Spekrum dx6i radio. System setup for 12S operation.

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01-03-2011 06:50 AM  6 years agoPost 2
Ken4

rrApprentice

Singapore

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Sometimes there is a slight bend in the boom after hard landing that is not noticeable until you remove the boom and roll it on a glass table. And also there may be a slight bend in the TT, remove the tail gear case and see if the TT spins centered. Also make sure the TT gears mesh smoothly.

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01-03-2011 11:19 PM  6 years agoPost 3
Bigrcfan

rrNovice

Spring, TX - USA

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Thanks for the feedback as I will certainly check these items out. If this isn't the case then i guess the only option left would be replacing the tail servo. What really puzzles me is that the movement only occurs after I spool up and bring the rpms up. With the heli powered on and with with no stick movement there is absolutely no movement of the tail servo which makes me think I may have done some slight mechanical damage to the boon, TT gears or tail assembly.

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T-REX 600 › Erratic Tail Behavior
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