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2• Identify the gyro gain switch position on your transmitter which gives the
standard gain mode and the Heading hold mode. This can be done by ob-
serving the rudder servo behavior by applying full rudder command followed
by release: in the standard gain mode, the rudder servo will return rapidely to
the neutral position when the rudder stick is released, whereas in the heading
hold mode, the rudder servo will tend to remain at its full travel limit. (Single
mode connection ignore this step)
3• Set the gyro gain switch to the head-lock-mode: you will find that the Rudder
servo will creep in one direction.
4• Set the rudder trim (or preferably the sub-trim) so that the creep in the rudder
servo is minimized. You will find that there will still be some slow residual
creeping which is normal.
5• Once this trim position has been found, no further adjustment is needed. How-
ever, some slight adjustment of the tail control linkages may still be needed in
order to reduce any offset effects in the standard gain mode. (This could only
be done through flight trials).
6• Select the heading hold mode and hover the helicopter.
7• Applying short stabs to the rudder control and see whether there is any
tendency for the tail to oscillate. Reduce the gyro gain if oscillation is seen.
Conservely, increase the gain if no oscillation is seen. (The goal is to use the
highest possible gain without introducing oscillation).
8• Observe any trim offset in the tail and correct with the rudder trim.
9• Select the standard gain mode and repeat the exercise. In this case, any
offset effects should be corrected by adjusting the tail rotor linkages.
IMPORTANT:
1• If after adjusting the gyro gain with the transmitter and tail is still hunting
slightly move the control link to a different position on the rudder servo disk
(try a position more towards the centre of the servo).
± 10mm
•
INHIBIT
TAIL ROTOR, PILOT AUTHOR-
ITY MIXING SYSTEMS,
REVOLUTION, GYRO SENSE,
TAIL MIXING
GAIN CHANNEL
CHANNEL 5
GAIN SWITCH
CHANNEL 5
ATV VALUE (RUDDER CHANNEL)
50% (BOTH DIRECTION)
ATV VALUE (GYRO GAIN
60% (BOTH STANDARD AND
CHANNEL)
HEAD LOCK MODE)
RUDDER TRIM
SUB-TRIM
Use adhesive foam to install the gyro:
Vibration can damage the gyro, therefore it is important to mount the gyro to a
surface where there is little vibration. It is also important to increase damping to
the gyro, in order to decrease vibrations. For the best result, please follow these
instructions for mounting the gyro using adhesive foam.
Double sided self-adhesive
foam
1• Find a position at near the centre of mass of the R/C helicopter where there
should be little vibration.
2• Clean the mounting surface and the bottom surface of the gyro.
3• Use a piece of double side foam tape (#PL210) to fix the gyro.
CAUTIONS:
This device is not a toy
Safety is the top priority
We do not assume any responsability for consequential damages as result of the
product use.
Mounting surface
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