It is a light jet aircraft for small businesses, developed by the American company Cessna Aircraft Company. For the first time, CJ1 was demonstrated at the NNBA conference in October 1998 in Las Vegas “because the market required new technologies and additional features.” Aircraft Cessna Citation CJ1 is a modification of CitationJet, a market leader in the market of jet aircraft for small businesses. There was installed a new system called Collins Pro Line 21, color weather radar, and the total weight was increased by 90 kg.