Align Trex 600 - the Issue files - Page 7 - RC Groups
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Jul 24, 2006, 12:17 PM
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Bjorn Tore's Avatar
7minutes an 30 seconds into the gyro setup vid :-)
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Jul 24, 2006, 12:42 PM
Registered User
Several things in the thread - I was referring to the tail box coming apart comment - and thought folks were saying they put a ZIP there. I did use the zip ties for the sliders.

after reading about the tail drive gear seperating, I put a little ca glue on both sides of the gear to help prevent that from happining.
Last edited by rfaster; Jul 24, 2006 at 12:51 PM.
Aug 14, 2006, 12:16 AM
Where is the lift?
cptsnoopy's Avatar
I don't know if this is a new one or not. The tail seemed sluggish to respond on my maiden flight so I did not do more than just a hover a few feet off the ground. I was chasing the tail as if the gain was set too low. I later found that one of the tail blade grips was further away from the hub than the other, not much but enough to notice. I took the control rod off the rudder servo and found the whole tail pitch system very difficult to move. after removing the tail blade grip that was pulling away from the hub, I found the outer bearing comming apart. the center was pulling out of the outer race. This is a 8x3x3mm bearing and is not all that big. I have a bag of spare parts from the smaller trex-450xl and I believe that the tail housing bearing is 8x3x3mm also. I did not find one so I looked at the trex-450xl main blade grip bearing and it is 8x4x3 so I tried it and it looks like it will work fine plus it should be somewhat stronger. I had two of them so I changed them out on both trex-600 tail blade grips. If anyone has an opinion as to whether or not this is a good idea, please comment. Personally I would recommend everyone change theirs out to have a stronger bearing in place. Mine was probably a bad bearing to start with but it seemed ok when I was assembling it.
Aug 14, 2006, 06:10 PM
Renewed interest
ozace's Avatar
Thanks Cpts, its seems like a decent thing to keep an eye on. So far mine has been terrific , but now that i have upped the power, i will have to keep a closer eye on all of it.
Aug 14, 2006, 06:26 PM
Conformity Kill's
My initial flights with the 600 I too had tail issues. The screws holding the grips to the hub seemed to be a little on the loose side and allowing the tail blades to go off track. I tightened the bolts with more locktite and seems to be holding up fro the last 10 flights. but knowing you found one bearing was damaged I might just do your mod and put the 450 bearing in. Maybe that's why mine went off track in the first place. hummm.....

Oct 20, 2006, 04:51 AM
Renewed interest
ozace's Avatar
Seems all is going very well.
I expected back in july that this would be a massive thread. Looks like Align certainly out performed my expectations of them.

Anyhow, while playing with power systems i decided to have a real close look at the airframe etc. It is all holding up remarkably well. When i got to the tail end i decided to pull the Align CF tail blades for a close look. On inspection they didnt seem the same shape. Once removed i put the calipers on them as one felt "thicker" than the other. Sure enough one is larger in girth by .2-.3 mm for the whole span. I have noticed over the months that some flyers have reported iffy tails and i wonder if this has any effect or is a common occurance.

My tail has performed very well to date but i decided to swap to a set of MS 95mm tails that i had in the draw.

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