Light Jets are small jet aircraft approved for single-pilot operation, seating 4-8 people, with a maximum take-off weight of under 10,000 pounds (4,540 kg). They are lighter than what is commonly termed business jets and are designed to be flown by single pilot owners. After a high increase of interest in the Small Aircraft Transportation System (SATS) and air taxi markets in the early 2000s, the VLJ sector underwent significant expansion. Several new designs were produced, such as the Embraer Phenom 100, the Cessna Citation Mustang, and the Eclipse 500.