30
*Normally a value of 10- 20%. Secure the fuselage, engine running. Set the THROTTLE STICK to idle. Adjust
the IDLE-DOWN switch ON and OFF until the desired idle is achieved. Be sure to throttle up periodically to
allow the engine to “clean out” and idle reliably.
*Also LOGIC SW (Lsw1 to 3) may be assigned.
2.10 TRIM
TRIM submenu: resets and adjust effectiveness of digital trims.
The AT9 has digital trims which are different from conventional
mechanical trim sliders. Each TRIM LEVER is actually a two-direction
switch. Each time the TRIM LEVER is pressed, the trim is changed a
selected amount. The amount defaults to 4. When you hold the TRIM
LEVER, the trim speed will increase. The current trim position is
graphically displayed on the start up screen. The TRIM submenu
includes two functions that are used to manage the trim options.
（
1
）
Trim reset (RESET): Electronically centers the trims to their default values. Note that the
SUB-TRIM settings and the trim STEP rate are not reset by this command.
（
2
）
Trim step (STEP): changes the rate at which the trim moves when the TRIM LEVER is activated.
It may be set from 1 to 40 units, depending on the characteristics of the MULTIROTOR. Most
ordinary MULTIROTOR do well at about 2 to 10 units. Generally larger trim steps are for models
with large control throws or for first flights to ensure sufficient trim to properly correct the model.
Smaller trim steps are later used to allow very fine adjustments in flight.
HELI models only: OFFSET is available in the idle ups. If OFFSET is inhibited, adjustment of the TRIM
LEVERS will adjust the trims for all flight conditions. If OFFSET is active, then moving the trims within any one
condition will affect only that condition.
Adjust the rate until engine
idles as desired with Throttle
stick.
Throttle Stick down,
to RATE,PUSH,
to desired rate, PUSH
Optional:change switch
assignment .
to SW,
to desired position, PUSH.
Close
【
TRIM
】
RESET
：
Execute
STEP-AILE
：
4
（
0
）
ELEV
：
4
（
0
）
THRO
：
4
（
0
）
RUDD
：
4
（
0
）
Goals
Steps
Inputs
Reset trims to neutral after having
adjusted all linkage. Note: this is
one of the several functions for
which the radio requires
confirmation to make a change
Open BASIC menu,
then open TRIM
submenu.
For 1s. (If ADVANCE, press again
）
TRIM
.
Confirm the reset.
to reset,
for 1s. Beep sounds.
Double the sensitivity of the
AILERONTRIM LEVERS for a
first flight of an aerobatic model
to ensure sufficient range to trim
the model for level flight.
Adjust the size of
thestep (Ex
：
8
）
to AILE
，
PUSH
，
to 8,PUSH
Repeat for other
channel.
to ELEV,PUSH to new setting.
Repeat as needed.
Close
