What is the maximum weight (including payload) for a UAS to operate under Part 107?

Under Part 107 of the Federal Aviation Administration (FAA) regulations, the maximum weight for a small Unmanned Aircraft System (UAS) to operate, including its payload, is specified as 55 pounds. This limit is crucial for ensuring the safety and operational efficiency of small UAS.

When considering the maximum weight, it encompasses not only the UAS itself but also any additional equipment or cargo being carried for the flight. This weight limitation is set to mitigate risks during operations, such as difficulties in controlling heavier drones, increased potential for damage in the event of an accident, and broader regulatory compliance.

It's important to note that while some may consider operating larger aircraft under different guidelines, Part 107 distinctly defines small UAS operations with this weight limit to streamline regulations and promote safe flying practices in the National Airspace System. The figure provided in the answer aligns directly with these established parameters, reflecting the necessities for safety and regulatory compliance within the realm of available UAS operations.