39
Automatic trim not working accurately
• Have you moved the transmitter trims?
→ See page 30. Either re-calibrate the trim or avoid touching the transmitter
trims.
• Pitch-minimum correctly calibrated (SET-button)? → without given pitch,
the auto trim is disabled
• Internal tail gyro has not been trimmed for? (→ page 30)
Drift after tail rotor swing
• Unit not installed exactly vertical; lightweight helicopter with high blade pitch
angle?
→ Optimise by ying a 90° right-hand turn from the hover, with stabilisation
set to “yellow” mode. If the helicopter was stationary before the
quarter-pirouette, but always drifts in a particular direction afterwards,
then the installed location can be optimised.
If the model drifts at an angle left / forward (relative to the new position),
incline the HeliCommand further to the left; the reverse applies if it drifts right
/ rearward.
If the machine drifts right / forward, tilt the HeliCommand slightly forward;
do the reverse if it drifts left / rearward.
Inverted ight:
• Roll centre deviation when hovering inverted, or after switching back
→ Optimise the setting „neutral tilt compensation“ (PC setup software).
Drift after aerobatic manoeuvres (stall-turns, rolls etc.)
• HeliCommand 3A in use?
→ Not suitable for inverted ight or steep ight attitudes!
→ upgrade to 3D.
• External tail rotor gyro in use, and rotational (yaw) rate > 400° / second?
→ Reduce rotational rate (Seite 25)
• Completed a series of full rotations, such as multiple stall-turns,
rolls or loops?
→ See notes on page 34!
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