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Other › Tail wag question? GY401/futaba s9650....delay set at zero
02-06-2006 08:55 AM  12 years agoPost 1
AH-1 pilot

rrKey Veteran

Tampa, Florida

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I've been hovering my new Trex, added more cyclic throw, tracked the blades and now need to get rid of the tail wag. It starts out hovering fine then, starts a wag and can't stop after that. I'ver tuned down the gain from 45 to 30 so far. It's not hunting but rather gets into a 2 per sec steady wag.. One thing I haven't done yet is a flight with the gyro off, to adjust the neutral point. I should have done that first, just had time for a few quick hops.

Michael

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02-06-2006 01:53 PM  12 years agoPost 2
BarracudaHockey

rrMaster

Jacksonville FL

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Get the pushrod as close as you can to the spine. I had to drill a new hole. Gains around 35 that way.

Andy
AMA 77227
http://www.jaxrc.com

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02-06-2006 02:57 PM  12 years agoPost 3
Gary Hoorn

rrKey Veteran

Annapolis Maryland USA

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The 9650 has good power but if you are using the guide make sure the linkage is not binding. I drilled a new hole in the servo wheel 5mm from the center and run 45% gain on an SE. Delay should be zero. By moving the linkage attachment in closer to the center of the output wheel you are using more of the servos travel. Having to use too much limiting can sometimes cause non-linearity.
Gary

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02-06-2006 05:42 PM  12 years agoPost 4
heliflight

rrApprentice

uk

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hi, just flown my model with 401 and 9560 for the first time, i too have the samr problem, it works fine in normal mode, is the ball position on the servo the root of the problem here or does that help to improve another problem...? i have tried messing with the delay, it works best at 0 like you say,have a ff9 tx, have it in avc mode with both sens set down to 35, am i missing something here or is it just the ball pos...? i take it you do run it in ds mode on too?
help please as i thought this was going to be the answer to get it to fly well...also does the tail blade made a diff???, would you run plastic or carbon...?

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