Which weight limit defines a Small Unmanned Aircraft?

The definition of a Small Unmanned Aircraft is established by the Federal Aviation Administration (FAA) and is specifically defined as weighing less than 55 pounds (approximately 25 kilograms). This weight limit is significant because it delineates the regulatory framework for operating small unmanned aircraft systems (sUAS) under FAA Part 107.

By categorizing these aircraft within this weight threshold, the FAA sets clear guidelines for operational safety, pilot certification, airspace use, and operational restrictions. Being under this limit ensures that these aircraft can be flown and managed within a constructed set of rules aiming to minimize risks to people and property on the ground, as well as to other aircraft in the airspace. Understanding this weight classification is vital for anyone operating drones commercially or recreationally to remain compliant with federal aviation regulations.

The other weight limits mentioned are beyond the FAA's definition for small unmanned aircraft and relate to different classifications of drones which entail different regulatory contexts and requirements.