Basic knowledge of multi-rotor UAV

A helicopter with three or more rotors is called a multi-rotor drone or a multi-axis drone. Wherein the rotor refers to the propeller providing power, and the shaft refers to the rotation axis of the rotor providing power. Generally, according to the number of axes and the number of paddles, it can be divided into several axes and several rotor UAVs. According to the arrangement of the motor, it can be divided into single shaft single propeller and coaxial double propeller. According to the relationship between the direction of the machine head and the position of the motor installation, it is generally divided into I type and V type.

Quadcopter drones are the most efficient solution of all multicopter drones. It is also the layout scheme that we see the most in our daily life. Multi-rotors with six-axis and above layouts generally have a broken propeller protection function and are safer. The layout of single shaft and single propeller is generally considered to be more efficient than coaxial twin propellers. (Concrete analysis of specific situations)

The layout of the coaxial double propeller will be smaller than the single shaft single propeller layout in the same level. Coaxial double-propeller aircraft are generally more windy than single-axis single-propeller aircraft.

When we choose multi-rotor drones, we need to choose different configurations of multi-rotor drones according to our different requirements. For example, what we need is a multi-rotor UAV with a long battery life. It is best to choose a multi-rotor UAV with a large four-axis layout.