Design and implementation of experiments on small civilian UAVs in low pressure environments

In plateau areas with altitudes exceeding 4000 meters, where air density is only 67% of that at sea level, the lift of unmanned aerial vehicles (UAVs) decreases directly by one-third. The output power and thrust of propulsion systems such as engines and propellers, which rely on air density, are significantly reduced. Consequently, UAVs designed for low-altitude regions are unable to operate in plateau areas. This paper proposes a low-pressure experimental method suitable for UAVs operating in plateau environments, addressing the operational scenarios of a specific type of UAV. This method serves as a reference for performance research on UAVs with similar operational environments.