greg
Key Veteran
Location: Yorkville, IL
| The Problem:
After having built my Raptor 90SE I was not happy with the slop in the tail blade grips/bearings which translated to quite a bit of play at the end of the blades tips. I know about the common fixes: sanding blade grip halves and something else I can't remember but didn't seem to fix the job. My Raptor 30 and 50 both have a little play but they are only swinging 85 and 92 mm blades respectively.
The Fix:
Read here on RR and Ricks web site about changing out the hub to the Vigor CS. I ordered the parts from Ricks and installed it today. The hub and blade grip system on the Vigor is a much more beefy design and incorporates two sets of bearings and a thrust bearing in each blade grip. After having completed the project I am extremely happy with the outcome. There is almost zero play in the blades grips and pitch system on the tail. The hub also includes an o-ring to help dampen the system. I have yet to fly this set-up but I feel my 9251 tail servo will do a lot less work.
The new hub from TT is a good improvement and will help against blades flying off, but in my opinion has not addressed the play in the tail system. I have several new hubs coming for my 30 and 50 but felt the same setup on my 90 was a little weak (not strength wise but design wise)
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