please help with servo issue on v120d02s - RC Groups
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Feb 13, 2013, 06:25 PM
Registered User

please help with servo issue on v120d02s

ok so i got this heli today and for some reason when i start the throttle the left side servo pulls down like it wants to go left. then when i let off the throttle it goes back to normal???? please let me know how i can fix this? also when i increase throttle the farther the servo goes i am using a devo 8.
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Feb 17, 2013, 09:06 AM
Registered User
its cool im pretty sure thats how the heli gets lift, by angeling the blades
Jun 28, 2013, 08:16 AM
High VulTAge
all 3 servos should be moving down when raising the throttle. On the V120 the links on the blade grips are on the trailing edge of the blades so the swash moves down to get positive pitch. When only moving the throttle the swash should stay nice and flat in every direction.
Jul 07, 2013, 12:45 AM
Can it fly? I'll try and see!
ryane67's Avatar
Is it only the single servo or all three pulling down when you apply throttle? As vultage said it's a trailing edge linkage system so the swash moves down to increase collective.

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