Definition and Classification of Multi-rotor UAV (Episode Ⅰ)

Unmanned aerial vehicle, or UAV, refers to an aircraft that can fly autonomously or remotely without an operator on board.

Multi-rotor UAV is a special unmanned helicopter with three or more rotor axes. It rotates through an electric motor on each shaft to drive the rotor, which generates lift thrust. The total pitch of the rotor is fixed, rather than variable, as in a conventional helicopter. By changing the relative speed between different rotors, the single-axis propulsion force can be changed, so as to control the trajectory of the aircraft.

JMR-X900 Security Patrol Drone

Take the most common four-rotor UAV as an example. When the propeller of the UAV rotates at a high speed, the air will generate resistance, which will cause the UAV to spin in flight. To counteract this air resistance, the adjacent propellers are arranged to turn opposite, so that the air resistance of the propellers cancels each other out, thus ensuring a stable flying attitude of the UAV.

JMR-V1250HZ Six-rotor 10L agricultural spraying drone

Rotor layout is divided into I, X, V, Y and so on

JMR-X1100 Long Flight Rescue Patrol Drone With Searching Light

JMR-X1400 Agriculture spray drone seeds Fertilizer Spreading Drone

4. Classification by weight:

Large multi-rotor UAV: The empty weight is over 15KG, and the take-off full weight is over 25KG.

JMR-V1650 16L Agriculture pesticide spraying drone seed spreading