EFLU3550 E-flite Ultra Micro UMX Yak 54 BNF Manual
8
EN
Dual Rates and Expos
To obtain the best fl ight performance, we
recommend using a DSM2/DSMX transmitter
capable of Dual Rates. Before binding, ensure that
you are starting with a blank acro model in your
transmitter. Set wing type and servo reversing to
normal.
The suggested settings shown here are the
recommended starting settings. Adjust according to
the individual preferences after the initial fl ight.
NOTICE: Do not set your transmitter travel adjust
over 100%. If the TRAVEL ADJUST is set over
100%, it will not result in more control movement, it
will overdrive the servo and cause damage.
It is normal for linear servos to make signifi cant
noise. The noise is not an indication of a faulty
servo.
Tip: For the fi rst fl ight, fl y the model in low rate.
Dual Rates
Low High 3D
Aileron 50% 70% 100%
Elevator 40% 70% 100%
Rudder 50% 70% 100%
Before the fi rst fl ights, or in the event of an
accident, make sure control surfaces are
centered when the transmitter controls and
trims are neutral. The transmitter sub-trim must
be set to zero. Adjust the linkages mechanically
if the control surfaces are not centered. Use of the
transmitter sub-trims may not correctly center the
aircraft control surfaces due to the mechanical limits
of linear servos.
• Make the U-shape narrower to make the
connector shorter. Make the U-shape wider to
make the linkage longer.
Control Centering
Trimming
After adjusting transmitter trim in the air or on
the ground, do not touch the control sticks for
2 seconds. This allows the receiver to learn the
correct settings to optimize AS3X performance.
Failure to do so could affect fl ight performance.
IMPORTANT: Only trim your aircraft in General or
Standard Flight mode.
Control Horn Settings
The illustration shows linkage positions chosen for
the best aerobatic response. Linkage connections
on the control horns directly affect aircraft response.
Aileron
Rudder
Elevator