Horizontal Calibration; Takeoff/Landing - Hubsan H123D X4 JET User Manual

For both configurations, flight operation is mostly the same. This
manual will describe operation on the HT012D remote as an example.

3.4 Horizontal Calibration

Horizontal calibration is required when the aircraft drifts on the horizontal plane
during flight. When this happens, land the aircraft and disarm its motors. Follow
the below steps to do a horizontal/gyro calibration.
1. Place the aircraft on a completely flat surface and then follow the below
calibration procedure. Hold the left stick to the right side of its socket. Rapidly and
continuously wiggle the right stick left and right until the rear LEDS flash
alternately.
2 . C a l i b r a t i o n i s c o m p l e t e w h e n t h e L E D i n d i c a t o r s s t o p f l a s h i n g . I t i s
recommended that users wait for 15-20 seconds after the calibration is completed
before flying again.
Hold the left stick to the
right side of its socket.
Start
3.5 Taking Off And Landing
(Note: Novice pilots are recommended to use Sport Mode 0).
Takeoff
Simultaneously pull the transmitter joysticks diagonally down-out to arm the
motors (as shown in the below figure). Pull the left joystick (throttle) upwards to
takeoff.
Arm Motors
Rapidly and continuously
wiggle the right stick left and
right until the rear LEDS flash
alternately.
Takeoff
16
Calibration
Complete