What defines an unmanned aircraft system (sUAS) according to 14 CFR Part 107?

An unmanned aircraft system (sUAS) is specifically defined by 14 CFR Part 107 as an unmanned aircraft that weighs less than 55 pounds (the maximum takeoff weight). This definition is crucial because it establishes the regulatory framework governing the operation of small unmanned aircraft in the national airspace system.

The weight limitation includes the aircraft itself and any payload it may carry. This regulatory classification is important as it differentiates small unmanned aircraft from larger drones or manned aircraft which are subject to different rules and regulations. Understanding this weight criterion helps operators and pilots recognize which regulations they must comply with when operating within the sUAS category. In the context of the other options, they do not accurately capture the regulatory definition as outlined in 14 CFR Part 107. The focus on weight is fundamental to the definition provided by the FAA.