drdot
Elite Veteran
Location: So. California, Orange County.
| fwiw...
This will undoubtedly be covered in depth on another rather Freaky heli forum, but I needed to mention it on RR..
Bob and his friend Kevin introduced an amazingly effective tail rotor mod at the Buzzin the Border fun fly.
They had set up two 450 helis without blades to show the effects of the modification..With the stock tail setup and t/r push rod disconnected at the servo, the first heli was spun up to a relatively low rpm, and observers were asked to try to move the t/r control rod by hand from one extreme of throw to the other..Amazingly, due to the gyroscopic effect of the pitch arms on the grips, this was impossible to do withoout damaging the heli..
With the same setup usng the modified grips, the force required to move the pitch arm felt about the same as when the heli was powered down!
Result in flight for me was a much better feel to the tail, the ability to raiise the gain about 10 %, and a much better tail lock crosswind..I've always felt the stock tail was adequate, but this takes it to a whole new level, for practically no investment!
As an aside, I believe this phenomenon explains the issues of burned out t/r servos..It is that dramatic.
Hats off to Kevin and Bob, especially as Kevin spent hours modifying t/r grips for people at no charge!
John. |
had to replace them and all I had on hand were metal grips. The tail has not behaved quite as well since, and I had to turn the gain down a couple percent.
