Trim - RadioLink AT9S PRO Manual

also operate as spoilers.
• Retract servos are not proportional. Changing END POINT will not adjust the servo.
END POINT adjusts only the individual servo. It will have no effect on any other servo that is operated in
conjunction with this servo via mix or preset programming such as FLAPERON, AILEVATOR, etc. This is so that
each individual servo can be carefully fine-turn to avoid binding and other conflicts. To adjust the total travel of a
function such as FLAPERON, make the adjustments in that function's controls. For CCPM helicopters, adjust
the total travel of the function, such as collective pitch, in SWASH AFR. Adjust the linkage or the END POINT? It
is nearly always best to adjust your linkages to get as close as possible prior to utilizing END POINT. The higher
the END POINT setting, the better position accuracy and the more servo power available at nearly any position
(except if using digital servos). Higher END POINT values also mean longer travel time to reach the desired
position, as you are utilizing more of the servo's total travel. (For example, using 50% END POINT would give
you only half the steps of servo travel, meaning every click of trim has twice the effect and the servo gets there
in half the time). End point (and moving the linkage) = torque, accuracy, but transit time to get there.
• END POINT (instead of adjusting linkages) = travel time, but torque, accuracy.
Engine idle management: IDLE-DOWN and THR-CUT: functions which work with the digital THROTTLE TRIM
to provide a simple, consistent means of engine operation. No more fussing with getting trim in just the right
spot for landings or take offs! For additional engine adjustments, see THROTTLE-NEEDLE and THROTTLE
DELAY.
Goals
Decrease the flap servo
throw in the upward
direction to 5% to allow
trimming of level flight
only and down travel to
85% to prevent binding.

2.3.4 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. 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.
Trim reset (RESET): Electronically centers the trims to their default values. Note that the
（1）
SUB-TRIM settings and the trim STEP rate are not reset by this command.
Trim step (STEP): changes the rate at which the trim moves when the TRIM LEVER is activated.
（2）
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
Steps
Open END POINT function
Choose proper channel and
move stick or Knob in direction
you want to adjust and set servo
throw (Ex: flap up 5%)
Close
Inputs
for 1s.(If ADVANCE,
to END POINT,PUSH
to FLAP，PUSH，
【TRIM】
RESET：Execute
STEP-AILE： 4（
18
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www.radiolink.com
again）
to 5%，press
0）
ELEV： 4（ 0）
THRO： 4（ 0）
RUDD： 4（ 0）