The term 'heavy' in the context of private jets can be misleading, as these aircraft are not necessarily heavy or large compared to commercial jets like the Boeing 747. The Federal Aviation Administration (FAA) defines 'heavy' jets as those with a maximum take-off weight (MTOW) of 150 tons or more. This classification is crucial for air traffic controllers due to the turbulence these jets can create.
Exceptions exist, such as the Boeing 757, which was classified as heavy due to its engines producing significant turbulence despite having an MTOW of 273,000 lbs. Changes in aircraft design and capabilities can lead to reclassification over time.
In private aviation, 'heavy' often refers to large cabin aircraft. Essex Aviation describes these jets as having an MTOW of 50 tons. These planes offer spacious cabins that allow for customization and comfort, providing ample room for passengers.