dkshema
rrMaster
Location: Cedar Rapids, IA
My Posts This: Topic Forum | Yaw rates ("piro" rates) are controlled by the END POINT setting of your rudder channel in the transmitter.
I believe Futaba refers to the endpoint setting as ATV -- adjustable travel volume....
This is from a post I made the other day regarding a similar complaint a fellow had about his GY401 installation. The basic principle remains the same:
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Set your rudder endpoints to 100%.
Locate your ball link on the servo so that with the travel limit set to 100%, you get AT LEAST 45 degrees of travel in both directions from neutral on your servo before the tail pitch slider bottoms out at the end of its travel.
If you have the ball too far out, you lose a LOT of resolution AND a lot of control, as only small movements of the servo make for BIG changes in the tail. That makes for a heli whose tail is overly sensitive and for some seriously fast piro rates.
You'll find that if you move the ball in to where you get +/-45 degrees of travel, you'll be able to crank up the gain AND you'll be able to get reasonable piro rates that are readily controlled using the rudder travel endpoints.
Fine tune the travel limit after you've gone through the rest of the mechanical and gyro setup to insure that you're not bottoming out the pitch slider at either endpoint of travel.
Actual pirouette yaw rate is controlled by the endpoint setting of the rudder channel in your TX. Start at 100%. Numbers bigger than 100 speed up the spin rate, numbers less than 100 slow down the spin rate.
And finally, if the rudder is real touchy around neutral then add in EXPO to the rudder channel to flatten the stick response around the neutral point.
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* Making the World a Better Place -- One Helicopter at a time! *
Dave |
