Complex sentence: The Cessna Citation Columbus (Model 850) was a 4000 nm range business Jet programme launched by Cessna in February 2008 and cancelled in July 2009, it would have been the largest of the Cessna Citation family at the time.
Split into simpler sentences: The Cessna Citation Columbus (Model 850) was a 4000 nm range business Jet programme launched by Cessna in February 2008 and cancelled in July 2009. It would have been the largest model of the Cessna Citation family at the time.