Spracklin said the CSeries is under serious consideration for at least 30 to 50 aircraft as part of Air Canada's search for up to 100 new narrow-body planes to replace its Embraer single-aisle aircraft. Fadi Chamoun of BMO Capital Markets expects the CSeries will capture 30 per cent market share or about 2,100 deliveries over 20 years. Since its launch in July 2008, the CSeries has captured about 23 per cent of the 770 aircraft orders in this seat range. "We believe that it will be challenging for the CSeries program to generate a 'home-run'-type return on capital for Bombardier given stiff competition and the sizable up-front investment," he wrote. Embraer's new E2 family of jets, particularly the E195 will be a challenger to the CSeries, Chamoun added. Airlines are reluctant to add a new aircraft type in their fleet, but the CSeries would become more attractive as it approaches entry-into-service and validates the industry-leading per seat costs, he noted.