RadioLink Electronic Limited
7
Chapter 3 Get Ready to Flight
3.1 Motor Installation
To make the aircraft fly, motors usually rotate clockwise(CW)/counterclockwise(CCW) with the propellers. The
rotation direction of F121 motors can be identified by the cable colors. That is, red/blue means motor of
clockwise(CW) while black/white means that of counterclockwise(CCW). It is very important to make sure about the
rotation direction as below when installing motors. Otherwise, the drone would fail to take off.
* Motors installation can be skipped as the whole F121 is already assembled by factory default. If any of the
motors is worn out and needs to be replaced, it
’s essential to identify the correct motor rotation.
3.2 Propellers Installation
F121 is installed WITHOUT propellers protector by factory default because of the package consideration.
To ensure a safety flight, it
’s strongly advised to check if the protectors are well installed .
①
Find the two notches respectively on the motor protector
and propeller protector as image on the right.
②
Put on the propeller protector from the bottom and adjust
the position of the notches correspondingly.
③
Stabilize the frame with left hand and buckle the notch
of one side with right hand. Then buckle the notch of the other
side with left hand. A
“DA” sound will be heard if the installation is done with success.
④
Extra 4 screws are in the package and pilot can installed on the propeller protector as prefer.
Note
After the installation of the four propeller protectors, double confirm if they are leaning or slightly shake
F121 to see if they drop. If they are crooked or drop, repeat the above steps to ensure the well installation.
Screw Installation
