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HelicopterScale Model RC Helicopters › 5 bladed igd head
05-06-2005 03:40 PM  12 years agoPost 1
37 heli crashes

rrNovice

lakeland fla

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hi all,i have the 5 bladed igd head on my huges 500,i have the vigor cs mechs in it ,i tried 5, 680mm blades and the heli keeps turning left no matter how much i go right rudder,should i use 550mm,or 600mm???would this help??,also two of the blade grips droop more than the other three,any help would greatly be welcomed,thanks ray

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05-06-2005 09:05 PM  12 years agoPost 2
Dave Neves

rrApprentice

Fremont, CA

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IGD Head

Ray,
When you mention go left, do you mean left roll or left yaw?
Your main rotor blades may be too heavy. Regardless of the
length, you should shoot for around 150 grams on the blade
weight. Also remember that you must support the 90 degree
gyroscopic percession. This means that when you push
straight forward on pitch cyclic, the blade that is pointed
directly to the left will be at its lowest cyclic pitch. This can
be acheived by leaning the pitch links back, retarding the
swash plate timing or a combination of both. On your blade
droop issue, check to make sure that the damping O-rings
are not damaged or worn.

Dave Neves

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HelicopterScale Model RC Helicopters › 5 bladed igd head
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