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HomeAircraftHelicopterHelicopter Main Discussion › head dampeners
03-22-2016 12:06 PM  33 months agoPost 1
adh1000

rrApprentice

coral springs,florida.usa

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how do I decide on the hardness of the head dampeners, I fly smooth(ish) 3d and always went with the hardest I could find, my only reasoning being they are hard they will last longer..
but now i'm not sure. the heli I want to try changing them on is my gaui x4II stretch and running 500 mm blades , my headspeed is on the lower side of normal , I can't remember off hand but I know its not ballistic , the hardness of the dampeners range from 60 - 95 , so I guess what I would like to know is what symptoms are there that my dampeners are too soft and also how do I know if they are worn out
Anthony

logo 480 , ikon
oxy 3 , ikon
Gaui x5 ,(?)
logo 550sx ,v bar

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03-22-2016 01:12 PM  33 months agoPost 2
Dr.Ben

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Richmond, VA, USA

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Worn dampers can can cause erratic tracking and an unlocked feel to your fbl control system. When the head axle moves unpredictably in flight, the controller struggles to maintain tight control. There is typically less to be gained by softer dampers unless you are attempting low(er) headspeeds which are creating oscillations or are tuning a dual headspeed hover/aerobatic set up for something like F3C.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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03-22-2016 01:14 PM  33 months agoPost 3
Dan Minick

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Columbus, WI

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Hard dampeners are best for hard 3d ,but I see no reason you cant run them no matter how you fly as long as you do not get any head shakes at your favorite RPM. They are pretty cheap and I suggest you buy several pairs and try them out to see what you like best, each will give you a different feeling on head crispness. As far as knowing when they are shot? That is a tough call, I think most people just go by number of flights or some other regimen. But if you have been flying on bad ones for awhile I bet you will know when you install a new pair!

Team Synergy, Team FBL Rotors-------if its not broke...it will be!

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03-22-2016 01:22 PM  33 months agoPost 4
Dr.Ben

rrMaster

Richmond, VA, USA

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The hard ones are stable over a long time, but since the softer ones by definition allow more axle movement, that characteristic shortens their longetivity. The smaller the damper, the shorter the time the softer choices will last. You do indeed need to change soft dampers on a routine interval or else as noted the model's performance deteriorates at a slow and insidious rate to the point the model flies like, well, crap.

Run the hardest dampers your set up and desired feel will allow.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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03-22-2016 01:43 PM  33 months agoPost 5
adh1000

rrApprentice

coral springs,florida.usa

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cool thank you for the detailed answers , I have been using the 95 hardness dampeners ,so I will get another set of those and some 85's to try out , and see what happens
Anthony

logo 480 , ikon
oxy 3 , ikon
Gaui x5 ,(?)
logo 550sx ,v bar

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03-25-2016 03:16 PM  33 months agoPost 6
grim.the.grim

rrVeteran

Houston, Texas

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I have a question...which is harder the larger number or the smaller number. I never understood which? Thanks!

*** Real Pilots BEAT the air into submission! ***

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03-25-2016 04:13 PM  33 months agoPost 7
newbheliusr

rrApprentice

You guesss

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I believe the higher the number, the harder they are.

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03-25-2016 05:19 PM  33 months agoPost 8
Dr.Ben

rrMaster

Richmond, VA, USA

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Correct.

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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