RCHeliGears: How to setup Align GPro 3-Axis FBL Gyro? The insight of the parameters and the step by step procedure to set up the parameters for your helicopter.

Sunday, May 24, 2015

How to setup Align GPro 3-Axis FBL Gyro? The insight of the parameters and the step by step procedure to set up the parameters for your helicopter.

The insight of the parameters of Align GPro:
A. Swashplate:
  1. Flight Response: How fast the helicopter responding to your stick movement. The higher value, the faster helicopter response. The lower value, the slower.
  2. Flight Agility: Roll/Flip rate of the helicopter. The higher value, the faster the helicopter rolls/flips.
  3. Swash Gain: How solid the helicopter stops after the movement in aileron or elevator,. The higher value, the more solid in hard stops. (Do this step after step 1 and 2 are done)
  4. Cyclic Expo%:  The same thing as the "EXP" parameter on your transmitter, my preference is to set the value to 0, only adjust the "EXP" on my transmitter(Futaba 14SG)
  5. Cyclic Deadband: The deadband range around the center of the stick, the higher value; the wider range where the helicopter does not respond.
  6. Elevator Precomp.: Adjust the value only when the helicopter is head up or down while climbing or descending. The higher value, the more stable.
B. Tail:
  1. Tail Piro Rate: The higher value, the faster pirouette of the tail.
  2. RudGyroGain:  The same thing as the rudder gain on the transmitter, leave it untouched, only adjust the rudder gain on the transmitter.
  3. RudExp%: The same thing as step A.4, my preference is to cancel it(set to 0), and adjust it on my transmitter.
  4. RudDeadband Sub: the same thing as step A.5, but only for rudder stick.
  5. RudRightStop and RudLeftStop: How solid the tail stops after pirouette. The higher value, the more solid. You can get a rock solid hard stop by raising the value. Decrease the value if the tail bounces when stops from pirouette stop. 
  6. RudPGain: Decrease the value when the tail is not stable in hard stops during high cyclic change such as elevator or aileron tic-toc. Do the adjustment only after the tail gain(rudder gain) is set on the transmitter, or you will mess things up and can't figure out what to do.
  7. RudIGain: How tight the tail is "locked in". Leave untouched.
  8. Collective to Tail: Similar to step A.6, change the value when the tail not in position during sudden vertical climb or descending ; raise the value if the tail moves from left to right(counterclockwise) until the tail is not moving, decrease the value if the tail moves from right to left(clockwise).
  9. Cyclic to Tail: Change the value only when the tail is not in position when cyclic changing a lot such as full cyclic flip or roll. Increase the value until the tail is not moving, but usually the parameter is not touched as long as you do a good pitch management to maintain the head speed.

The step-by-step procedure to setup the GPro parameters:
  1. Reset the parameters to for beginners if you are a beginner, or reset all the parameters to default, refer to here if you are not familiar for how to do it)
  2. Adjust the rudder gain(tail gain) on your transmitter until the tail is hunting; then decrease the value for 3~5 points. This can be done by hovering.
  3. Adjust the "Flight Agility" by doing some rolls and flips or any high cyclic movement.
  4. Adjust the "Flight Response" by doing figure eight.
  5. Do the "Cyclic Expo%" and "Rud Exp%"
  6. Adjust the "Swash Gain" by doing some high cyclic stops.
  7. Adjust the "Tail Piro Rate".
  8. Adjust the "RudRightStop and RudLeftStop"
  9. Adjust the "Collective to Tail" and "Cyclic to Tail" if need to.
  10. Adjust the "Elevator Precomp." if need to.
  11. Fine tune the rest of parameters if still not satisfied.
My parameter settings for my helicopter Align 550L Dominator Super Combo.
Commercial time:
Align 550L Dominator on eBay

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