Trex 600E ***NEED HELP*** - Page 4 - RCCanada - Canada Radio Controlled Hobby Forum
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Old 09-04-2010, 08:24 PM   #31

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Re: Trex 600E ***NEED HELP***

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So ...finally I think I have this thing down to an acceptable amount of vibration...very slight on the skids...(I do have the wide very flexible skids)...

I did as Mark said ran the heli with out the main blades installed and found the fly bar paddles were still I dynamically balanced them and ran up to above hover power with out any vibs...

...then I went to the field today and with some help from some very experienced heli fliers dynamically balanced the main blades....I think now if I installed the narrow, stiff skids there would no noticeable vibrations!...Now I look forward to having the wind die down as it has been 15 to 25 km's for the last 24 hours!

Thanks to all that replied is great to tap into the experience here at RCC!

Last edited by hammonr; 09-04-2010 at 08:36 PM.
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Old 09-04-2010, 10:26 PM   #32
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Re: Trex 600E ***NEED HELP***

I maidened my T-rex 600e today and had the same blurred-skid issue. I had done all the ususal things to ascertain a clean build, but thanks to one of the fellows at the field we were able to eliminate most of the vibration by tuning the blade-tracking and tightening the tail-rotor belt tension. The tracking was off by 1 turn on the top linkage. The belt was "maybe a bit loose". Each of these issues resolved about 1/2 of the vibration.

We are left with a little apparent vibration at the skids but none at the tail fin. We are thinking that this might be the result of of the very soft skid braces on this heli.
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Old 09-05-2010, 02:53 PM   #33
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Re: Trex 600E ***NEED HELP***

I'm glad you got it sorted out Rob. A well set up helicopter of good quality is a pleasure to fly. One that is giving you problems can be very discouraging - I've been there too.

Have fun.
Hespeler Model Aviators

This is my helicopter. There are many like it but, this one is mine.
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