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HelicopterMain Discussion › Tail problems...fast forward flight
04-30-2004 03:29 AM  13 years agoPost 1
DaOne

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Prineville, OR - USA

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I am having a problem with the tail in fast forward flight that I just can't figure out. It's driving me nuts. The problem is that occasionally when I am in fast forward flight the tail starts wagging back and forth violently. If I bring in back into a hover it calms down. My setup is a JR 500T Gyro w/9253 servo. It's in fast frame rate mode. This is on a raptor 30. Any ideas on what to look for? It rock solid in a hover. I have no binding anywhere

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04-30-2004 03:41 AM  13 years agoPost 2
moorecj98

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na

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turn you gain down

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05-01-2004 03:53 AM  13 years agoPost 3
Helimex

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Oklahoma

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I had the same problem with a different gyro, but turning it down got rid of the tail wag. Your gyro's gain may be too high also.

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05-01-2004 10:33 PM  13 years agoPost 4
shawgl

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Murrieta, CA

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Tail wag

My 5000T does the same thing in FF, I am not sure what radio you are using but if you have the remote capability use it with a lower gain and it should take care of it no problem.

Good luck

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05-01-2004 10:46 PM  13 years agoPost 5
A. Bundy

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Aurora,IL. 30W/SW of Chicago

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You can leave the normal mode gain where it is and reduce the gain in idle up if you want.

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05-02-2004 03:05 PM  13 years agoPost 6
shawgl

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Murrieta, CA

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Exactly, depending of course on the radio you are using. If you are wondering about how far to go down on the gain, mine was a 15% difference. That will depend on the main and tail blade combination though. Don't be worried if its a big number is the point.

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05-02-2004 06:54 PM  13 years agoPost 7
DaOne

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Prineville, OR - USA

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well I got rid of it but now when I punch it the tail dosent hold
I am at 55 on the tail (50 and above is the HH mode) I was only at 65. Tried 60 and it still was screwing up in forward flight. Maybe a bad gyro?

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05-02-2004 07:23 PM  13 years agoPost 8
Rogue123

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Phoenix AZ

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Are you on the lean side? Just try to richen up the high needle, also make sure, youre engine is not making a kicking sound in FF. Where is you gyro location??Is in stock postion??If not and you installed on the Servo tray, youre Engine is running Lean then or just might have a viberation issue or a bad gyro/servo.
R
BG

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05-02-2004 10:36 PM  13 years agoPost 9
DaOne

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Prineville, OR - USA

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Dont think its lean. Has great smoke and stays warm not hot. Gyro is mounted right behind the mainshaft (stock location)

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05-02-2004 10:57 PM  13 years agoPost 10
Barney

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Inverness Scotland

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Not sure how U set up the particular Gyro you are refering to but the gyro gain % is set independantly from the H/H & normal settings

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05-03-2004 07:54 AM  13 years agoPost 11
DaOne

rrApprentice

Prineville, OR - USA

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Not sure how U set up the particular Gyro you are refering to but the gyro gain % is set independantly from the H/H & normal settings
As far as I knew the way this gyro works is anything from 1-50 is rate mode (higher the number the more gain - lowest being 1 and highest being 50) and 51-100 is HH mode (higher the number the more gain - lowest being 51 and highest being 100)

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05-03-2004 08:52 AM  13 years agoPost 12
poerQwa

rrVeteran

Rotterdam, The Netherlands

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How long is your tail servo arm?

65% in your case = 65-50 times 2(in your setup each % = 2%) = 30% gain.

that's not much. Either you do have some vibration problems or it could be that the tail servo arm is way to long. Try hooking it in 1 hole closer to the center and see if you can move the gain up. Just make sure that your tail travel is large enough to give you the tail pitch you need/want.

Greetz,

Marc

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HelicopterMain Discussion › Tail problems...fast forward flight
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