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Home✈️Aircraft🚁HelicopterThunder TigerOther › Woof and Poof Help!!
07-22-2006 04:28 AM  14 years ago
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thenewguy

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Corvallis, Oregon Where there is liquid sunshine!

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Woof and Poof Help!!
Ok I have changed Grips to new ones.
Changed blades from wood to V2
Checked bearings.

Now what?

Going to change collective servo from 3001 to 9252, if that dosen't work going to change blade grips from trailing to leading.
What else am I missing.

Heli is a raptor 50 and it does it bad.The woof and poof, where the blades go ape s#$T.
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07-22-2006 04:59 AM  14 years ago
kmcclain

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Hawley, MN

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If you flip the head you will never again have woof, I have flipped 4 of these and woof is a thing of the past.

Good luck


This hobby is like a mental illness!

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07-22-2006 05:05 AM  14 years ago
thenewguy

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Corvallis, Oregon Where there is liquid sunshine!

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Thanks that helps. I was just reading some post of the same problem. None of them said to do this. The heli was bought used and came with the grips fliped. I put it back to normal and after about 3 gallons. Man, you would think it was going to explode. I think I will flip the grips firstafter changing the servo. I'm also going to replace all the ball links. They seem a bit old and loose.
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07-22-2006 01:15 PM  14 years ago
kmcclain

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Hawley, MN

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Some raptors there is nothing you can do to stop the woof except to flip the head. They sure fly nice flipped, and the 90 class heli's come from the factory with leading edge control on the grips!

Kurt


This hobby is like a mental illness!

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07-22-2006 08:58 PM  14 years ago
359PETE

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Ware, MA USA

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Do the grip flip. Its a must as far as I'm concerned.

Also try the aluminum plates on the collective servo. This will tighten up a lot of the slop in the collective control.
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07-22-2006 09:07 PM  14 years ago
thenewguy

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Corvallis, Oregon Where there is liquid sunshine!

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Well I just made the change from trailing to leading. Going to go test fly here soon. Hope it works!!!!
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07-22-2006 09:36 PM  14 years ago
BJames111

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San Diego, California

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this is usually caused by play in the collective system. I traced mine back to a sloppy collective servo, but play in the washout arms have caused it as well. The raptor flies great in it's intended design, so fly it! Engineers were paid a lot of money to design it, and it works well.
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07-24-2006 12:10 AM  14 years ago
Ron Henry

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Atlanta area, GA - USA

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Flipping the grips will get rid of the woof, but I do it more for control feel than anything else. I've flown my Titan with the grips in the standard location and with the grips flipped and I've found that leading edge control is far better. The bird is more responsive to collective and cyclic inputs. Every raptor that I've flown in the stock setup tends to feel like it's lagging in all the control inputs no matter how fast you set it up. Like I said earlier, I've flown my machine both ways, and leading edge performs better to me.- Ron Henry
http://kaizenrc.com/forum
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