User manual PowerBox Competition SR2

34 PowerBox-Systems − World Leaders in RC Power Supply Systems
Once you have completed these steps, turn the gyro gain control (or controls, if your
model has a vector control system) to maximum, and check the direction of effect
of the gyro. The intelligent iGyro learning process effectively prevents the need for
corrections here - unless you have made an error when learning the sticks or the
installed orientation. If this should happen, simply repeat the appropriate point in
the iGyro menu.
It is important to know that the gain control has two ranges, as explained above:
range A and range B. In range B the Assistant assigns Attitude Assist to the aileron
function. We recommend this setting on the ailerons, as it results in very precise
gyro response. During the test-ight we suggest that you turn the gain control to the
left (0% to -100%) in order to make use of this feature immediately. Later on you can
ne-tune ranges A and B individually at any time.
Your model is now ready to y. Set the gyro gain control to 0%, and take the model
off. On this rst ight it should be trimmed out carefully without using the gyro
function.
Should you need to adjust the trims, or correct the control surface travels, during or
after that rst ight, it is essential to re-learn the stick end-points in the Gyro menu.
The iGyro is now ready for the model’s initial set-up ight. Take the aircraft off with
gyro gain set to 0%. Hold the model straight and level while you (or a colleague)
slowly turn the gain control to the left - or right, if you do not want to use Attitude
Assist on the ailerons.
Slowly turn the gain control until the model begins to oscillate. Once you have found
this point, turn the gain control back slightly. Now y a few circuits with this setting.
Fly loops, rolls, knife-edge passes, and the model should exhibit no tendency to
oscillate at any time.
As soon as you have found this optimum setting, bring the model in for a landing.
Switch to your transmitter’s servo monitor, and read off the percentage value for
gain. You can now swap the rotary control for a switch, and enter the associated
servo travel as the percentage you have just established. A value of 0% disables
the gyro.
If your model features thrust vector control, the Setup Assistant has already assi-
gned a second gain control. This is used to set the optimum gyro response for the
vector function in a separate test-ight. Gyro gain for thrust vector control generally
requires a value higher than 100%. Since the Competition SR2 features integral gain
controls for each individual gyro function, it is possible to implement different ight
modes at the transmitter with no great effort.