16
13. Setting the Trim
The trim mostly serves to correct the slight inclination of the servo levers for channels 1 to 4 due to the interlock and
the connected irregular control movements. Additionally, there is the option to adjust the model in operation precisely,
e.g. if it is not flying straight although the control lever is in the middle position.
Then the linkage or rudder rods must be adjusted so that the trim has its original value (90°-range between servo lever
and rods) again and the model still runs straight.
The remote control "HT-10" has a finely tuned digital trimming with which each control channel can be individually set
with a trimming button (also see figure 1, items 6, 8, 14 and 16).
The trimming buttons are assigned the following control functions:
Trimming button 6 = elevator/nod servo (ELE) "CH2"
Trimming button 8 = aileron/roll servo (AIL) "CH1"
Trimming button 14 = rudder/tail servo (RUD) "CH4"
Trimming button 16 = throttle servo, flight/speed control
-
ler (THR) "CH3"
To check the setting of the digital trimming, first switch on
the transmitter and then the receiver.
If a trimming button is moved to the side or up or down
and held, the transmitter will emit brief signal sounds
in a quick sequence. The servo of the respective con-
trol channel will change the position of the servo lever
in small steps. When the end of the trimming range is
reached, the signal sounds go out and the servo lever
stops turning. If the trimming button is then deflected in
the opposite direction and held, the signal sounds sound
again and the servo lever turns back to the middle posi-
tion step by step.
When the middle position of the trimming range has been reached, the remote control issues a longer signal sound.
Now set the middle positioning of the trimming in all four channels and install the servo levers so that they are at a
90° angle to the rods. Since the servo levers and the servo axis are interlocked, very small inclinations of the servo
lever cannot always be avoided. In this case, the trimming of the respective channel must be adjusted slightly from the
middle to return to the 90° angle of the servo lever to the linkage rod (see figure 8).
Switch off the receiver and then the transmitter.
The set trim value is automatically saved in the remote control and is retained even after switching it off and
on.
When using the electrical model with a flight controller, the trim for channel 3 also needs to be set to the middle value.
Figure 9
