Only because of this Boeing pressure, Bombardier sold its Cseries to Airbus. So no breaking the duopoly for now until the Chinese start building competitors to the A320 or the 737...
Mitsubishi is trying to break in, with a 90 passenger regional jet. They did work on the wings of the 787. I think they have a shot, but they seem to be having problems with execution.
did they? My understanding is that they in effect sold the us market only (planes elsewhere would be made in B's factories) though I could be misremembering.
Planes for other markets might be made in bombardier's factory, but they airbus owns a majority stake in the c-series program since the us tariffs went into place.
