C Series/900X/Q400X–Officially still alive as a program but downgraded in status from an imminent launch candidate to a loosely defined study, the proposed 110- to 135-seat C Series has taken the proverbial back seat to research aimed squarely at the uppermost reaches of the regional airline market, namely a 12-seat stretch of the 86-seat CRJ900 and a proposed 90-seat variant of the Q Series line of turboprops.
General Electric CF34
ARJ21–China’s AVIC I Commercial Aircraft (ACAC) continues its deliberate march toward a 2009 introduction of the 90-seat ARJ21-700,