Engine
Suddenly, the CJ legend is running on fast-forward.
The CJ4 combines aerodynamic enhancements and a Williams FJ44-4A engine to produce exceptional performance benefits. Each state-of-the-art powerplant generates 3,621 pounds (16.11 kN) of thrust. Max payload is 2,118 pounds (961 kg). And full-fuel payload tips in at an even 1,000 pounds (454 kg). Even more good news: At maximum takeoff weight, the CJ4 will lift off on as little as 3,130 feet (954 m) of runway. And it needs only 2,700 feet (823 m) to land. The CJ4 will also climb directly to 45,000 feet (13,716 m) in just 27 minutes. And cruise at 451 knots (835 km/hr) with speed to spare. So if you're itching to join the 500-mph club, we've got your membership card right here. But speed isn't the CJ4's only big story: This aircraft is built for range, too. With its NBAA IFR 100 nm reserve, you can travel 1,930 nautical miles (3,574 km) before single-point refueling.
As with all CJs, the CJ4 is designed to be so easy to fly that it's slated for single-pilot certification. Pilot workload is reduced through the addition of full-authority digital engine controls (FADEC), which simplify engine control and operation.
Two dual channel FADEC controlled, Williams FJ44-4A turbofan engines are installed on the CJ4. The engine is a medium bypass, twin-spool design with four compression stages and three turbine stages. It produces 3,621 pounds (16.11 kN) of takeoff thrust at sea level, static conditions, flat rated up to 79°F (26°C).The FADEC system also provides time-limited dispatch, diagnostics, and engine synchronization.






