E-flite UMX Radian BNF - Manual (Page 7)

7 EN
Move the controls on the transmitter to make sure the aircraft control surfaces move correctly. Always
keep throttle at the low position during testing.
Control Direction Test
Down
Elevator
Right
Rudder
Left
Rudder
Up
Elevator
Control Centering
Before fi rst fl ights, or in the event of a crash,
make sure the 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.
For best performance with AS3X, it is
important that excessive transmitter trim is
not used.
Rudder
Control Horn Settings
Elevator