UMX FPV Radian Manual
9
EN
Control Direction Tests Continued
Aircraft 
Movement
AS3X Reaction
AS3X
®
 Control 
Direction Test
This test ensures that the 
AS3X
®
 control system is 
functioning properly. 
1. Advance the throttle 
to 25% to activate the 
AS3X system.
2. Fully lower the 
throttle.
3. Move the entire 
aircraft as shown and 
ensure the control 
surfaces move in the 
direction indicated 
in the graphic. If 
the control surfaces 
do not respond as 
shown, do not fly the 
aircraft. Refer to the 
receiver manual for 
more information.
Once the AS3X system is 
active, control surfaces 
may move rapidly. 
This is normal. AS3X is 
active until the battery is 
disconnected.
ElevatorRudder










