RotorHead486
Key Veteran
Location: England
| Hey,
I have had a Vibration issue for while with one of my synergy's and recently traced it to the Torque Tube not running true, i replaced with a Hyperdrive and my tail vibration issue is gone.
Also, it could be down to the thrust bearing catching in the tail grip. I have seen a couple of cases where the thrust race is a tight fit in the tail grip and this does not allow the thrust race to do it's job. I have been playing around with a modification i've done for the tail to give it 2x radial Bearings and a thrust race which give much smoother operation and better support which deals with the bolt failure issue.
Using a Thrust race upgrade from QuickUK and an extra radial bearing i have modified the tail rotor to use two radial bearings and a single thrust race.
What i have done is replace the original thrust race with a radial bearing which provides more support and a much smoother operating tail than the original and then using the thrust race upgrade kit from QuickUK added to the hub which basically extend's the hub.
This thrust race upgrade was orignally used as an upgrade for the QuickUK CNC Alloy tail rotor assy for the raptor series but the thrust race and hub extension are perfect diameter for the Synergy hub.
Below you can see the hub extension upgrade in place:
Below you can see the complete thrust bearing upgrade in place:
This is basically a simple modification, the only area requiring any work is to relieve the blade grip where the thrust race is going to go as generally tail blade grips have a slight step in them to allow for free rotation of the thrust race, the synergy grips do not have this and this has been one of the contributing factors in the failures of the tail rotor assemblies. What i did was to install a bearing (old one if available) and then using either a file or Dremel which i used with a file tip, file away the area where thr thrust race is going to be. If you install a bearing and allow the tip of the dremel to run on it you will only be relieveing the area that is required be the thrust race and the area for the radial bearing stays tight.
I have not had enough time on the mod'd tail assy yet so only time will tell. But if any of you want to give it a go and let me know how you find it, please feel free.
Update:I've been flying the Mod for a few months now and so far it seems to holding up well, no changes needed to gyro settings etc...
Cheers!
Rossco
One Reason For Crashing'Rogue Servo Bent on World Domination'!!
QuickUK Pilot |
