The Cessna CitationJet also called the CJ series and 525 model, was the basis for all of the CJ models which include CJ1, CJ2, CJ3 and CJ4. The original Model 525 CitationJet was an updated version of the Citation and Citation I, launched in 1989.
The CJ had a modified version of the Citation's front fuselage with a laminar flow wing and a new T-tail.
Its power comes from two Williams FJ44 turbofans, and includes EFIS avionics and is certified for single pilot operations. The CitationJet's fuselage is 11 inches smaller than the Citation I, but has a lowered center aisle for more cabin height. The CitationJet's first flight was on April 29th, 1991 with its first delivery on March 30th, 1993.