European low-cost carriers will help drive demand for new planes in the region over the next 20 years, as airlines replace their older fleets with more fuel-efficient jets, planemaker Boeing said on Sept. 21. Boeing said that it expects airlines in Europe to order 7,100 new single-aisle planes between now and 2040. Single-aisle planes are typically used for short haul journeys. Of the 7,100 new single aisle jets, in which Boeing’s 737 jets compete against Airbus’s A320 and A321s, Darren Hulst, Boeing’s vice president of commercial marketing, said he expects to see a demand close to 3,000 come in the next 10 years alone. Budget airlines likes Ryanair, which last week announced it had raised its five-year passenger traffic growth forecast to 50 percent, are behind that demand, Boeing said. Hulst also noted that the demand for planes in Europe by low-cost carriers would be stronger than anywhere else in the world. “Globally our forecast in general is about 40 …