Bombardier Challenger 350 Dominates SuperMidsize Segment The Bombardier Challenger 350 is dominating the SuperMidsize market. This is according to the General Aviation Manufacturers Association (GAMA). For 2017, Canadian airframer Bombardier delivered 56 units of the Challenger 350 resulting in a 53-percent market capture for the SuperMidsize segment. Bear in mind that the Challenger 350 entered service in 2014 and has passed the 200 delivery mark already in 2017. The delivery pace is being kept up backed by continuous order intake.