Take-off and landing are the primary operations in the agricultural spraying uav flight process. Although simple, its importance cannot be ignored.

First, let's take a look at the take-off process (the power-on operation is omitted here). Stay away from drones,slowly push the throttle and wait for the agricultural spraying uav to take off. This is the operation steps for takeoff. The accelerator must be pushed slowly. Take your time even if you have pushed a little distance and the motor has not started. This prevents the aircraft from being unable to control due to too much throttle. After the agricultural spraying uav takes off, the throttle cannot be kept unchanged, but the agricultural spraying uav reaches a certain height. Generally, it starts to lower the throttle after about 1m from the ground, and constantly adjusts the throttle size to make the agricultural spraying uav hover within a certain height. This is because sometimes the throttle is slightly larger and the agricultural spraying uav rises, and sometimes the agricultural spraying uav descends with a slightly smaller throttle. The throttle must be controlled to allow the agricultural spraying uav to ensure the flying height.

When landing, you also need to pay attention to the operation sequence: lower the throttle to make the aircraft approach the ground slowly; push the throttle slightly to reduce the descending speed; then lower the throttle again until the agricultural spraying uav touches the ground (do not push the throttle after bottoming out); the throttle is lowered to the lowest . Compared to takeoff, landing is a more complex process that requires repeated practice.

During take-off and landing operations, it is also necessary to pay attention to ensuring the stability of the agricultural spraying uav .The swing of the aircraft should not be too large, otherwise the propeller may be damaged when landing and taking off.