Ryanair’s May 9 order for up to 300 737 Max 10s gets the Irish ultra low-cost carrier in Boeing’s backlog until its FY2034. The airline plans to expands the number of seats it will be flying in 2023 from roughly 97,000 to almost 165,000 by the middle of the next decade, principally by adding the stretched jet that will be 37.5% of its fleet, but 40% of its seats as it grows to 800 aircraft.