The Cessna Citation CJ4 is the newest and largest model of the Citation CJ line. Compared to the CJ3, it is the same cabin cross-section but 21 inches longer.
Introduced in 2010, it is one of the largest aircraft in the light jet class. While remaining true to the roots of the CJ product line, the CJ4 is predominantly a clean sheet design. Design highlights include a new wing design for better range, heated windshields, improved hydraulic and electrical systems for better reliability and raised cabin windows to improve visibility for passengers.