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Miniature Aircraft Whiplash & Furion 6
› Furion 450 Tail Kick
08-03-2011 12:46 PM  6 years agoPost 1
PBusch

rrKey Veteran

Minnesota

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I'm at a loss with this one.

Problem, tail kicks to the right a couple inches when doing a hard climb out, otherwise it works fine.

It did this when I had a sparten quark on it and now it does the exact same thing with my new Beast FBL.

I'm running a CC Ice 50 in it.

What do I do?

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08-03-2011 04:08 PM  6 years agoPost 2
MinAirUSA

rrVeteran

Bavaria, Germany

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As long as there isn't a mechanical issue, there really are only a couple of reasons why the tail would "kick" and they are all "gain" related. The reason you're seeing a "kick" is that the tail is momentarily (or longer) unable to counteract the torque of the main rotor. So..the first thing I would do is increase the gain on the gyro. If it is super high already, move the ball out one hole on the rudder servo arm, and reduce the travel. The other factors are the tail blades. If they're super flimsy, they won't hold as good as ridged ones. Try some carbon t/r blades?? The other things that can change the tail performance are also "gain" related. Tail rotor speed is also a factor (which cannot easily be changed, except by increasing headspeed) The tail rotor ratio on the Furion 450 is already fairly high. Some gyros simply are not sensitive (good) enough for use on a 450. The final thing, is to simply reduce the pitch of the main rotor. There really is no reason to run more than 10 or 11 degrees of pitch MAX!

Miniature Aircraft

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08-03-2011 04:35 PM  6 years agoPost 3
rstacy

rrElite Veteran

Rochester, NY

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First off I agree with Brian. There is no reason to over pitch the 450. It will only cause you tail problems.

The only time we ever had tail kicking problems was when the motor was acting up. Replace the motor and the kick was gone.

Also, if you are running the governor mode, turn off the governor and run a straight throttle curve. Do you still get the kick?

Ray

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08-22-2011 12:58 PM  6 years agoPost 4
naked painter

rrVeteran

Mid glamorgan uk

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Check for wear on the tail rotor belt drive . If the belt tension or the final tail gear is worn the belt can jump a tooth causing it to kick.

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