What precautions should be taken when flying near metal structures?

[AdminForo]

What precautions should be taken when flying near metal structures: Flying the DJI Mavic 4 Pro near metal structures requires a very careful approach due to the high risk of magnetic interference, which can directly affect the drone's internal compass. Power pylons, the roofs of industrial buildings, bridges, cranes, or even large parked vehicles can emit magnetic fields that distort the orientation of the navigation system. This can cause directional errors, erratic movements, and, in the most extreme cases, a sudden disconnection of the positioning system, causing the drone to behave unpredictably.

Before taking off in such an environment, it is recommended to perform a full sensor check using the DJI Fly app, especially the compass status. If interference is detected, the app will suggest recalibrating or changing location. Takeoff should not be undertaken if the compass shows a persistent error, as this can cause failures in trajectory control or the return-to-home function. It is also important to avoid taking off directly from metal surfaces, such as roofs or stairs, as they increase the risk of errors in the system's initial orientation.

During flight, if the drone begins to drift without apparent cause or if the app displays messages such as "Magnetic interference detected," the most prudent course of action is to slowly move away from the metal structure, maintain a safe altitude, and plan a manual return. It is also important to monitor the GPS signal, as tall, metal structures can block or distort satellite reception, leaving the drone in ATTI mode, where it no longer hovers automatically and is completely under the pilot's control.

Taking precautions in these scenarios not only preserves the safety of the equipment but also prevents potential accidents that could affect people or property. Understanding how the environment affects the drone's systems and anticipating the effects of metal structures allows for informed decisions that ensure a stable, controlled, and smooth flight. Prior preparation and constant vigilance throughout the operation are key to flying confidently in urban or industrial areas.