Like the last time when we wrote about the A220 and its range versus other Airbus single-aisles, this is a bit of Apples and Oranges. Just about everything around how the range of the A220 is measured changed. When we put the new data into our performance model, a very different range picture popped out than the one given by Airbus.
Airbus change the rule set by which it measures the range of the A220 to the less stringent Airbus single-aisle rule-set. Together with a future increase of the MTOW, this will increase the range of the A220.
It also changed the seating. This was to curb the range of the A220-100 and to hide an emerging fuel limitation of the A220-300.