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flashprash65 · 10-21-2008, 08:52 PM

Hey guys,

I have a problem! In flight when i 'flick' my aileron quick left or right and back to center my head wobbles for about 4 seconds and then settle down and spins perfectly again. My bird is perfectly balanced ( head, blades, flybar/paddles), trueblood dampeners, new main shaft, new spindle, pretty much a new Sa plastic head.

Any suggestions?

alienteabagger · 10-21-2008, 09:35 PM

If by "flick" you mean letting the stick bounce back to center on its own, then the wobble is caused by the stick itself being bounced back and forth by the springs that pull it back to center.

If you are using your fingers to move and return the stick to center and getting a wobble, I'd bench test your servos before flying again. Make sure none of them are jittering.

emag remrofni · 10-21-2008, 09:50 PM

It's the trueblood dampeners you're running. They make the head really tight which causes the wobbling effect. There's no point to use them unless you are doing 3d at a high headspeed.

flashprash65 · 10-22-2008, 07:15 AM

Quote:

Originally Posted by alienteabagger

If by "flick" you mean letting the stick bounce back to center on its own, then the wobble is caused by the stick itself being bounced back and forth by the springs that pull it back to center.

If you are using your fingers to move and return the stick to center and getting a wobble, I'd bench test your servos before flying again. Make sure none of them are jittering.

Ah, yes, let me clarify, i move the stick to center position. My servos are working 100%. It looks more like a mechanical wobble not electronic.

flashprash65 · 10-22-2008, 07:18 AM

Quote:

Originally Posted by emag remrofni

It's the trueblood dampeners you're running. They make the head really tight which causes the wobbling effect. There's no point to use them unless you are doing 3d at a high headspeed.

Yes it's the trueblood ones. But the OEM dampeners are only good for about 10-15 flights.

So Truebloods cause wobbling by being tighter?

helibalou · 10-22-2008, 08:35 AM

My head wobbles....

Maybe you should cut down on caffeine, or wear one of those whiplash neck braces...

emag remrofni · 10-22-2008, 09:22 AM

Quote:

Originally Posted by flashprash65

So Truebloods cause wobbling by being tighter?

Exactly. The only way to get rid of it is if you bump up the headspeed.

flashprash65 · 10-22-2008, 02:22 PM

I run an 11T on a 430L Align motor on a 450XL. As it is i only get about 5mins of flight time to drain my lipos to 20%. Higher head speed = more current drain? SO i'll be in the 4mins flight time span?

Is that the average for a 2200mah... ?

cd5 · 10-22-2008, 03:19 PM

seems way to low on the headspseed for such a hard dampener. when you wash off headspeed with a collective input it will cause a wobble for sure. I run 13tooth on the 430 xl motor,fly for 5 mins with alot of power drawing moves and put back 1500mah . so no your power consumption does not sound good. Check for power train drag.

10-21-2008, 08:52 PM	#1 (permalink)
flashprash65 Registered Users Join Date: Jun 2008	My Head wobbles? Hey guys, I have a problem! In flight when i 'flick' my aileron quick left or right and back to center my head wobbles for about 4 seconds and then settle down and spins perfectly again. My bird is perfectly balanced ( head, blades, flybar/paddles), trueblood dampeners, new main shaft, new spindle, pretty much a new Sa plastic head. Any suggestions?

10-21-2008, 09:35 PM	#2 (permalink)
alienteabagger Registered Users Join Date: Jun 2007	If by "flick" you mean letting the stick bounce back to center on its own, then the wobble is caused by the stick itself being bounced back and forth by the springs that pull it back to center. If you are using your fingers to move and return the stick to center and getting a wobble, I'd bench test your servos before flying again. Make sure none of them are jittering. __________________ Zit: T-Rex450SA w/ 430L 13t pinion - My flying backscratcher Tiny: Raptor .50 w/TT .50 engine - One bad machine! One DX6i to rule them all!! Have a gyro/tail/wag problem? Check here https://helifreak.com/showthread.php?t=66036

10-21-2008, 09:50 PM	#3 (permalink)
emag remrofni Registered Users My HF Map location Join Date: Mar 2007	It's the trueblood dampeners you're running. They make the head really tight which causes the wobbling effect. There's no point to use them unless you are doing 3d at a high headspeed. __________________ Avant > all

10-22-2008, 08:35 AM	#6 (permalink)
helibalou Registered Users Join Date: Jul 2007	My head wobbles.... Maybe you should cut down on caffeine, or wear one of those whiplash neck braces... __________________ TRex 600N Sport YS50ST, RazorPro CF Mainblades, Specktrum DX7 with AR7000 receiver, Futaba GY401 Gyro Aerospire Multigov, CSM Carbsmart, Align 2 in 1 Regulator, Hitec 6975 servos on swash and tail. Hitec HS81 on throttle and CSM carbsmart.

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10-22-2008, 02:22 PM	#8 (permalink)
flashprash65 Registered Users Thread Starter Join Date: Jun 2008	I run an 11T on a 430L Align motor on a 450XL. As it is i only get about 5mins of flight time to drain my lipos to 20%. Higher head speed = more current drain? SO i'll be in the 4mins flight time span? Is that the average for a 2200mah... ?

10-22-2008, 03:19 PM	#9 (permalink)
cd5 Registered Users Join Date: Aug 2006	seems way to low on the headspseed for such a hard dampener. when you wash off headspeed with a collective input it will cause a wobble for sure. I run 13tooth on the 430 xl motor,fly for 5 mins with alot of power drawing moves and put back 1500mah . so no your power consumption does not sound good. Check for power train drag.

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