Carbon Fiber Fins - Better Worse or No Difference

[GreenBar0n]

Would all the holes on these fins make for a drifting tail?

http://www.readyheli.com/Custom_Heli_Parts_Carbon_Fiber_Blade_400_Fin_Set_p/chp-ef001.htm

Would holes in the tail fin make any difference at all in regards to tail hold?

[sokal]

the fins really dont do much for aero dynamics
if any it would help in fwd flight
but those are great if your trying to lessen the wieght

[GreenBar0n]

I have been getting some tail vibration and a constant tail drift to the right (nose-out). Another member here PM'd me and said he had the same carbon fiber fins that I do (shown in link above), and mentioned that with these new fins he gets tail vibration/wander too, though he reports that with the stock fins on he has no trouble. I'm drifting either way I would assume, haven't put the stock fins on to check.

He and I were just wondering if that can be an issue, the holes in the tail fin not providing enough resistance or surface area to hold the tail solid. Any possibility that can be a problem?

[sokal]

fins with or with out holes dont do much in a hover

you driff could be mechanical

you should have LOCKMD help you when ya'll get together
might be a small oversight

also iv found the vibe in fin comes from loose screws/hardware or bent shafts
and blades

[GreenBar0n]

Good to know about the fins. Just wanted to be certain.

I think I got the tail wobble beat. I had installed a new t/r shaft and when I put the blade hub back on, I didn't flush it with the shaft, so the pitch was permanently off by just enough. Replaced tail blades, flushed t/r shaft to blade hub and reset the linkage center, rebind and the wobble is gone.

LockMD and I are going out to the field tomorrow so hopefully he can spot the cause of the last bit of creep in the tail.