three more seats could be added by moving the aft lavatory, without reducing the seat pitch. On 21 May 2019, Airbus announced a MTOW increase from the second half of 2020, from for the A220-100 and for the A220-300, expanding the range by : the A220-300 to for the A220-100. With the Airbus ruleset ( passengers with bags, 3% enroute reserve, alternate and 30 minutes hold), the 108-seat A220-100 could reach and the 130-seat A220-300 would achieve a range of while being limited by its fuel capacity. With a denser economy seating at a 30-inch pitch down from 32, a 116-seat A220-100 would still reach and a 141-seat A220-300 would exceed . In February 2020, Airbus announced an increase in payload capacity, achieved through a increase in the maximum zero-fuel weight and maximum landing weight of both the -100 and the -300, to be introduced as an option from 2022. From 2021, David Neeleman's Breeze Airways project should receive A220-300s with extra fuel tanks for of range, allowing transatlantic flights or long routes like Orlando–Curitiba, Brazil, more range than the A321LR with 70% lower trip costs than A330s. In March 2021, Airbus offered a further increase to the MTOW of the A220-300, to , available from mid-2021 and providing another of additional range to . On long routes the payload will be increased by about . Business jet (ACJ TwoTwenty) In October 2020, Airbus announced an Airbus Corporate Jets (ACJ) variant of the A220-100, to be known as the ACJ TwoTwenty, with a range of and cabin space of for 18 passengers. On 17 May 2021, the first section of the ACJ TwoTwenty, the mid-fuselage section, had arrived at the A220 Final Assembly Line in Mirabel within the programme time frame and marked the start of the first Airbus corporate jet ever assembled in Canada. The business jet made its first flight on 14 December 2021, before delivery to Comlux to be outfitted with a VIP cabin in Indianapolis. Design The Airbus A220 family is a single-aisle airliner originally developed by Bombardier as the CSeries, targeting the 100- to 150-seat market between regional airliners and mainline airliners. Efficiency claims Airbus states that the structural technology, aerodynamic design, ultra-high bypass geared turbofan engine, and state-of-the-art flight control and systems together can save up to 25% fuel burn per seat, 25% and 50% NOx emissions, as well as provide a 25% reduction