What is one effect of flying a UAS at higher altitudes?

Flying a UAS at higher altitudes can lead to decreased lift and battery efficiency due to the thinner air found at higher elevations. As altitude increases, atmospheric pressure and density decrease, which can negatively affect the ability of the rotor blades to generate lift. This is particularly important for multirotors, as they rely on air density to provide the necessary lift for flight.

Additionally, the reduced air density can lead to less effective propulsion, causing the UAS to require more power to maintain flight. Consequently, this increased power demand can drain the battery more quickly, resulting in shorter flight times. Understanding these effects is crucial for UAS operators to ensure safe and effective operation, as flying at higher altitudes may necessitate adjustments to flight planning and battery management to avoid potential issues.