In 1981, the year Airbus SE announced it would build a new single-aisle jetliner to take on Boeing Co., the 737 ruled the roost.
The US-made narrowbody, already in use for more than a decade, had reshaped the airline industry by making shorter routes cheaper and more profitable to operate. By 1988, when Airbus began producing its upstart A320, Boeing had built a formidable lead by delivering some 1,500 of its cigar-shaped best-seller.
It’s taken the better part of four decades, but Airbus has finally caught up: The A320 series is poised to overtake its US competitor as the most-delivered commercial airliner in history, according to aviation consultancy Cirium. As of early August, Airbus had winnowed the gap to just 20 units, with 12,155 lifetime A320-family shipments, according to the data. That difference is likely to disappear as soon as next month.
“Did anyone back then expect it could become number one – and on such high production volumes?” Max Kingsley-Jones, head of advisory at Cirium Ascend, wrote of the A320 in a recent social-media post. “I certainly didn’t, and nor probably did Airbus.”
The A320’s success mirrors the European planemaker’s decades-long rise from fledgling planemaker to serious contender, and finally Boeing’s better. By the early 2000s, annual deliveries of the A320 and its derivatives had surpassed the 737 family; total orders eclipsed the Boeing jet in 2019. But the 737 stubbornly remained the most-delivered commercial aircraft of all time.
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At the outset, Airbus faced an uphill battle. The European planemaker, an assemblage of aerospace manufacturers formed in 1970 with backing from European governments, didn’t yet offer a full aircraft lineup. Infighting hindered everything from product planning to manufacturing, and leadership decisions had to finely balance French and German commercial and political interests.
Yet it was clear even then that Airbus needed a presence in the narrowbody segment to firmly establish itself as Boeing’s top rival. Those aircraft are by far the most widely flown category in commercial aviation, typically connecting city pairs on shorter routes.
Higher fuel costs and the deregulation of the US aviation industry in the late 1970s had given the European planemaker an opening with American airline executives, who clamored for an all-new single-aisle, according to a history of Airbus written by journalist Nicola Clark.
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To set the A320 apart, Airbus took some risks. It selected digital fly-by-wire controls that saved weight over traditional hydraulic systems, and gave pilots a side-stick at their right or left hand instead of a centrally mounted yoke. The aircraft also sat higher off the ground than the 737 and came with a choice of two engines, giving customers greater flexibility.


