RadioLink Electronic Limited
13
Chapter 4 Flight at Different Flight Modes
I
t’s strongly advised for beginners to start from Altitude Hold Mode (Low-speed) to Altitude Hold Mode
(High-speed) then to Stabilize Mode.
It’s better to keep the direction of F121 head same as pilot in order to easily judge the flight direction. Otherwise,
F121 may flight towards pilot and get him/her hurt. If the aircraft head is changed unexpectedly and different from
pilot’s direction, pull the throttle stick to the lowest position to land F121.
4.1 Altitude Mode: Rise/Descend
Press the CH5 switch of T8S backward, which makes F121 fly at Altitude Hold Mode (Low-speed). Make sure the
orange propellers at front when powering F121 on. Then arm F121 and push the throttle joystick vertically
upward higher than center position, then the F121 will rise while if push it vertically downward, then the F121 will
descend.
4.2 Altitude Mode: Hover
Push the throttle joystick vertically upward till the F121 rises to a height as wish, then toggle it back to center
position and release , the F121 will hover at this height.
4.3 Altitude Mode: Forward/Backward/Right/Left
At Altitude Mode, F121 is able to fly forward/backwards or towards to right/left by toggling the right stick at the
certain height .
For beginners, make sure to push the stick gently because being a racing drone, F121 is very
responsive. It’s
advised to release the stick as soon as toggle to one direction so that F121 will back to level automatically.
Otherwise, F121 will keep flying to the toggled direction with accelerated speed.
4.4 Altitude Mode: Clockwise/Anticlockwise Rotation
When get familiar with the above flights, try flight clockwise/anticlockwise because the yaw practice is more
difficult to judge the flight direction. Clearly knowing the direction will quickly help master drone flight. Try imagine
sitting on the drone could be a better way to practice.
Toggle the rudder joystick to the left and F121 will flight anticlockwise while if to the right, then the F121 will flight
clockwise.
4.5 Stabilize Mode
Press the CH5 switch of T8S backward and it keeps F121 work in Stabilize Mode.
When at Stabilize Mode, F121 will flight faster than when at Altitude Mode. Toggle joysticks as gentle as possible
to avoid drastic movements, which may possibly hurt the pilot. Make sure that the battery is fully charged before
enjoying the flight.
Once get familiar with the low speed and high speed at the Altitude Mode, beginners can practice how to
rise/descend,hover, pitch forward/backward, move to left/right and rotate to clockwise/anticlockwise at the
Stabilize Mode, which is more challenging.
Note
When the green LED on F121 starts flashing during flight, it means the voltage of F121 is lower than 3.8V
as this value is default for 1S battery
. It’s advised to stop flying to avoid battery over discharging.
* If the F121 purchased is with camera integrated, it
’s capable of OSD function and pilot can check the current
voltage of the battery by goggle or FPV screen in real time.
