TRIM Trim Settings
There are four trim levers (“trims”) on the front of the transmitter. Three of the trims are for adjusting the neutral position of
the aileron, elevator and rudder servos. The fourth trim is for setting the idle r.p.m. of the engine when the throttle stick is all
the way down. The intended use of the trims is to make small servo adjustments, in flight, to get the model properly trimmed
(so it will fly straight-and-level). Because the trims are intended to be used while the model is in flight, you do not have to enter
the program to adjust the trims. Simply push or pull on the trim levers while flying and the neutral position of the servos will
shift. Keep in mind that you should start out with the control surfaces centered when the servos are centered and the trims
are “zeroed” (or near zero). THEN you can adjust the trims once airborne.
Center the servos:
1. Turn on the transmitter and receiver. Operate the controls to make sure the servos respond in the correct direction. Use
the reversing function to reverse any servos necessary.
2. Center the throttle control stick.
3. Place the servo arms on the servos so they are perpendicular to the pushrods (see page 5). It is okay to cut off any unused
servo arms.
4. Connect the pushrods to the control surfaces. Adjust the length of the pushrods until the control surfaces are centered
when the servos are centered.
To adjust the trim settings:
Once the servos and control surfaces have been connected and the control throws have been set using the end points and
dual rates, get the model airborne. Adjust the trims as necessary to get the model to fly straight-and-level. If much trim is
required on any one control it is a good idea to readjust the pushrods so the trims can be returned to neutral (zero). Adjusting
the trims with the trim levers changes the servo s position in increments of “5.” If finer adjustments are required, land the
model, then enter the program as described below to adjust the trims in increments of “1.”
1. Enter the programming mode and use the MODE key to activate the TRIM menu.
2. Press the SELECT key to display the channel to be adjusted (the figure shows trim adjustment
for CH1).
3. Adjust the trim using the DATA INPUT lever. Note that initially, the values change in increments
of “1,” but if the DATA INPUT lever is held long enough the values will change more rapidly.
4. Repeat the steps for other channels that require trim adjustments.
P.MIX Programmable Mixer
Unlike the “wing mixing” function (explained later) where the channels to be mixed are factory-set, the T6EXA also contains
one programmable mix where the you, the pilot determine the channels to be mixed. This could be used to correct unwanted
flight tendencies (by mixing rudder to aileron, or aileron to rudder for example).
To set up a programmable mix:
1. Until activated by the user, the P.MIX is inhibited (Inh). To activate the P.MIX enter the
programming mode, then press the MODE key until P.MIX is displayed on the screen.
2. Push the DATA INPUT lever upward. This will cause the flashing “Inh” display to change to a
flashing “on” display.
Note: The throttle trim affects the throttle servo only when the throttle stick is below “1/2 stick.” This way, the final closing
of the carburetor can be adjusted without affecting the servo throughout the rest of the range.
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