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The Cessna Citation Hemisphere was a business jet project by Cessna.Announced in November 2015, it was then expected to fly in 2019 but its development was suspended in April 2018 due to a delay in the development of its Safran Silvercrest engines.It was designed for Mach 0.9 and would have a 4,500 nautical miles (8,300 km) range.