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HomeRC & PowerAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › My 401 is driving me nuts!! please help!!
10-27-2006 04:54 AM  11 years agoPost 21
Zaneman007

rrElite Veteran

Texas - USA

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toggle to rate (normal) mode and set up your gyro mechanically.
OK, I have the toggle on switch B. On the gyro screen it has:
UP>A 79%
DN>N 50%

Toggle to rate mode means I should select the DN>50% setting. This will put me in no-heading hold, and I should stay with the 50% setting. Is this correct.

Do I have to reset the gyro when I go from heading hold to non-heading hold or just from non-heading hold to heading hold?

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10-27-2006 12:37 PM  11 years agoPost 22
BarracudaHockey

rrMaster

Jacksonville FL

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The gyro has two modes, non heading hold and heading hold. The correct term for non heading hold is rate mode, its also called normal mode but to clearly separate normal gyro mode from normal flight mode I always say rate mode.

Initialize the gyro in heading hold mode.
Toggle to rate mode and make sure the servo arm is 90 degrees to the push rod.
Start up and hover the helicopter in rate mode, you want to adjust the length of the linkage so that the helicopter will hover w/o drift in rate mode, dont use your transmitter trim, just figure out which way you need to hold the stick to keep a hover and turn the ball link in or out till you get a nice stable hover.

Shut the helicopter down and verify that any changes you make didnt cause any binding, essentially redo the limit pot setup.

Now you're done your setup and you can toggle back and forth between modes all you want w/o doing anything special. Though most of us just leave it in HH mode.

Also 79 is alot of gain, might want to back that off to the mid 60s. As for 50 percent gain in rate mode (n50) that should be pretty close.

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

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10-27-2006 12:54 PM  11 years agoPost 23
Dr Lodge

rrElite Veteran

Guildford, Surrey - UK

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Initialize the gyro in rate mode.
Toggle to rate mode
You meant initialise in HH mode then toggle to rate mode?

Vibe 90, Vibe 50, Vigor CS x2,
Dyna-x, Knight 503D, Logo 10,
TRex 500, Furion, Gaui EP200

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10-27-2006 01:34 PM  11 years agoPost 24
BarracudaHockey

rrMaster

Jacksonville FL

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Thats what I said

Thanks, good catch.

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

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10-27-2006 05:51 PM  11 years agoPost 25
Zaneman007

rrElite Veteran

Texas - USA

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Will do thanks for the help and explanation.

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HomeRC & PowerAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › My 401 is driving me nuts!! please help!!
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