RadioLink Electronic Limited
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Chapter 1 Features of F121
As the mini racing drone that can fly at high speed at Altitude Hold Mode, F121 is very easy to master for drone
freshman. The inertial navigation system technology blending Kalman filtering, gyro, accelerometer and
barometer makes F121 possible to flight through narrow space with accuracy and hold altitude even it
’s less than
one-meter height to the surface or at high speed. With three flight modes Alt-Hold at low speed, Alt-Hold at high
speed and Stabilize, beginners can flight stably at the first trial.
F121 is monitored by RadioLink mini racing drone flight controller F121, which is different from other flight
controllers with PID needs to be set before use,will tune automatically. The software noise reduction technology
not only enables a more pleasant flight but also makes the motors more responsive and more efficient than
traditional 8520 coreless motors.It can be thrown and start to fly at any angle even under high-speed and
remains stable even facing with sudden airflow fluctuations such as during takeoff, under braking, or after
extended flying. Without compass locking, F121 always automatically modify angles during flight .
