The Williams International FJ44 is a turbofan engine designed for business jets. It is known for its efficiency, reliability, and low noise levels, making it a popular choice among aircraft manufacturers. The engine features a modular design, which simplifies maintenance and reduces downtime. With a thrust range of 3,400 to 4,600 pounds, the FJ44 powers several aircraft models, including the Cessna Citation CJ3 and Embraer Phenom 300. Its advanced technology allows for improved fuel efficiency and lower emissions, aligning with modern aviation standards for sustainability.