What happens if you fly indoors without GPS?

[AdminForo]

What happens if you fly indoors without GPS: When the DJI Mavic 4 Pro flies indoors without a GPS signal, it relies entirely on its down-focus sensors and barometer to maintain altitude and position. In this scenario, the drone enters a vision stabilization mode that analyzes the ground and its surroundings to remain stable. While this system is accurate on surfaces with clear patterns and good lighting, its performance decreases in low-light areas or on uneven, textured floors.
The lack of GPS indoors means that features such as Return to Home, Preset Routes, and Smart Follow are disabled or function only with limited functionality. The pilot must exercise greater manual control and always maintain line of sight with the drone to avoid collisions with walls, ceilings, or furniture. Additionally, if the vision sensors lose their orientation, the drone may move unintentionally, increasing the risk of accidents in enclosed spaces.
One aspect to consider is that internal air currents, such as those generated by fans or air conditioning systems, can affect flight stability. Without GPS, the drone cannot automatically compensate for these shifts, so any position changes must be corrected manually. This requires greater skill and concentration from the pilot, especially if the space is limited or there are complex obstacles.
For this reason, it is recommended that indoor flights be conducted at low speeds, with smooth movements and avoiding excessive heights. Additionally, it is important to ensure that the lower sensors are clean and unobstructed to maximize their effectiveness. Although the Mavic 4 Pro can fly safely without GPS, this condition requires more precise and conscious control from the operator.