The Cessna Citation CJ1 is a light business jet developed by Cessna Aircraft Company and introduced in 1998. With a maximum speed of Mach 0.83, it is the first of the CitationJet family and was designed to provide a more cost-effective alternative to larger business jets.

The CJ1 was designed to fill a gap between the smaller, entry-level CitationJet and the larger, faster CitationJet CJ2. Cessna felt that there was a need for a more affordable light business jet that could provide faster and more efficient travel than the smaller CitationJet. With the additional speed, the CJ1 would be able to arrive at its destination sooner and with less fuel costs.

The CJ1 has been a very successful aircraft, with over 800 units delivered to date. It has become one of the most popular light business jets in the market and has served as the foundation for other CitationJet models. The CJ1 is well-known for its excellent operating costs, reliability, and its ability to take off from shorter runways.

Despite its numerous benefits, the CJ1 has had its share of safety issues. In 2002, the CJ1's autopilot system was found to be unreliable, leading to a recall of the aircraft. The system was eventually modified to make it more reliable, but the recall had a major impact on the aircraft's safety record.

The CJ1 is also known for its innovative design and technology. It was the first of its kind to feature a fly-by-wire system, which allows for smoother and more precise control of the aircraft. Additionally, the CJ1 was the first CitationJet to feature an all-glass cockpit and a digital flight control system.

The CJ1 is the first of the CitationJet family and is the most affordable light business jet on the market. Its combination of speed and efficiency, along with its innovative design and technology, make it an attractive option for many business travelers. Its safety record, while not perfect, is still better than many other aircraft in its class. The CJ1 is a great option for those looking for a reliable and economical light business jet.