Which of the following is NOT a weight class for aircraft?

The classification of aircraft into weight classes is important for regulatory, safety, and operational considerations within aviation. The categories of Small, Large, and Super are officially recognized by the Federal Aviation Administration (FAA) and other aviation authorities worldwide.

Small aircraft typically refer to those with a maximum takeoff weight (MTOW) of 12,500 pounds or less. Large aircraft pertain to those that exceed this weight but are not classified as Super, which refers specifically to aircraft that are much larger, often involving significant passenger or cargo capacity. The Super category generally includes aircraft designed for extensive commercial operation, characterized by a very high MTOW.

Medium does not correspond to an established official weight class in aviation. Aircraft that might informally be described as medium in various contexts don’t have a uniform classification and therefore do not fit into the official weight class categories recognized by regulatory bodies.