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HelicopterMain Discussion › GY 601 Gryo
01-18-2003 11:23 PM  15 years agoPost 1
Raptor Guy

rrNovice

Central Texas

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I have a GY 601 and using a 10X radio. The tail seems way touchy. How is the best way to to take out some of the touchy feel. It works great and hold like a beast but but touchy on stick just a little and you get alot. I know Iam missing something please inform. Thanks!

Michael in Texas

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01-18-2003 11:31 PM  15 years agoPost 2
mrNoodles

rrProfessor

Borlänge, Sweden

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expo!?

/Fredrik
'Hm now I just have to find out where to connect the GV1 sensor to the Jazz80 ESC.

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01-19-2003 02:38 AM  15 years agoPost 3
noxam

rrApprentice

Lancaster, PA

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Adjustment
Turn down the gain in your radio on the Gyro settings, you have it set to high.

Alive and Tocking!

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01-19-2003 02:46 AM  15 years agoPost 4
Indrid

rrKey Veteran

Hamburg, NY

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i dont know if this applies to the 601 but from what i understand you say it holds great but is too sensitive on stick response. turn down the rudder ATVs and it should be a bit more rounded on the response. hope i am on the right track here...

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01-19-2003 02:46 AM  15 years agoPost 5
JasonF

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Northern VA

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Sorry Noxam but that is not the correct way to fix a tail that is too touchy. He did not say anything about it wagging from too much gain.
Freyaguy, you will want to decrease your rudder channel ATV or Dual rate. Either of these will decrease the piro rate. You can also setup some expo on your rudder channel as noodles mentioned.

Jason

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01-19-2003 02:56 AM  15 years agoPost 6
noxam

rrApprentice

Lancaster, PA

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Idiot!
I am just an idiot Jason, never mind me and my big mouth, no nothing about RC helis post. Sorry. Just don't forget to: 1. Leave ALL of the menus at the stock setting (the default settings are in the book) except what is mentioned below. YES that means leave it in F3C mode not 3D! 2. Adjust your tail linkage so that your tail servo limit setting (last menu) is over 100% NOT under. Set the travel equally for both A & B at around 110% to 120%. Setting the limits under 100% can reduce the life of the servo. 3. Setup your radio however you like but make sure the gain on the first screen that shows up after the gyro initializes reads 35-37% MAX this is very important. The 601 will not wag until the gain is very high but if the gain is too high and you stop the tail very abruptly you may damage your heli. I set mine up like that above because Jason Krause said so.

Alive and Tocking!

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01-19-2003 03:28 AM  15 years agoPost 7
Raptor Guy

rrNovice

Central Texas

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Thanks guys this forum is great. I will try the things suggested will let you what happens. Thanks!!!

Michael in Texas

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01-20-2003 06:13 AM  15 years agoPost 8
a_korandr

rrVeteran

Chicago, IL

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NOXAM,
some pro told me to use equal Lmt too. Would you know why is that ?

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01-20-2003 11:05 AM  15 years agoPost 9
noxam

rrApprentice

Lancaster, PA

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Hmmm?
I would imagine you should keep your travel limits the equall as you do with all LMT's. You want them to be equall so they have the same feel and throw if you will, which isn't always easy to do on the tail. Plus, JK says to put the tail %20 past the servo binding as it will not bind in the air. Just my .02.

Alive and Tocking!

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01-20-2003 01:48 PM  15 years agoPost 10
Ricardo_6

rrNovice

San Juan,Puerto Rico

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Im about to install a gy 601 gyro. Do anybody whats the arm lenguts you guys are using so thye atv come out over 100%

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01-20-2003 02:42 PM  15 years agoPost 11
a_korandr

rrVeteran

Chicago, IL

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noxam,
i think there is something else behind this. JK's suggestions comes actually from CY (read his 1996 article about gyro for 3D). And this is about giving more gain to the servo, vs. gyro. CY talks a lot about the two gains (servo arm length, etc).

Whatever it is - i just use 105% on both sides. The Lmt does (i believe) affect the feel of right or left, the ATV does that and other parameters.

here is a part of CY's article :
The term “over-driving” means the servo can put in
more control than the gyro, at high turn rates. With
the longer arm you will have to turn the gyro down
some to keep the tail from oscillating. But, it should
still hold as well as a shorter arm with a higher gain.
And the maximum pirouette rate will be increased.
For the over-driving to work, set the travel adjusts
as high as possible (150%). This will result in the
tail pushrod jamming and bending at full control,
but in flight, the gyro does not let this happen. The
reason is, when a large
control input is given for a
pirouette, the gyro will take
out a percentage of control
input in an attempt to stop
the pirouette. A fast pirouette
results when there is more
control to cause the
pirouette than there is gyro
to stop it. This is done by
making the gyro control a
smaller percentage of the
total control by using a long
servo arm, using full servo
movement and turning the
gyro down.

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HelicopterMain Discussion › GY 601 Gryo
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