October 18, 2017, ©. Leeham Co: Bombardier and Airbus changed the airliner landscape yesterday. Analysts say it’s the largest industry change since Boeing bought McDonnell Douglas in 1997. So, what has Airbus bought for no money? A me-too, or a world-beater? CSeries was developed as a step-up regional airliner from Bombardier’s CRJ series. It started more as a me-too than a world-beater. Gradually the design grew in capability. In the end, the CSeries became more than a step-up regional.