Airbus and Bombardier are partnering and posing a threat to rival Boeing. Last month Airbus acquired a majority stake in Bombardier’s C Series Aircraft Limited Partnership, meaning the European manufacturer will take over procurement, sales, marketing and customer support for Bombardier.

Some of the C Series planes will be made in the United States, paving the way for carriers like Delta Air Lines to avoid import duties, making purchases of these planes more attractive.

Tom Enders, chief executive, Airbus, called the agreement a “win-win for everybody.”

“The C Series, with its state-of-the-art design and great economics, is a great fit with our existing single-aisle aircraft family and rapidly extends our product offering into a fast-growing market sector. I have no doubt that our partnership with Bombardier will boost sales and the value of this program tremendously,” said Enders

Alain Bellemare, president, Bombardier, called Airbus the “perfect partner.”

“Their global scale, strong customer relationships and operational expertise are key ingredients for unleashing the full value of the C Series,” he said in a statement. “This partnership should more than double the value of the C Series program and ensures our remarkable game-changing aircraft realizes its full potential.”

The C Series planes range 100–150 seats and account for 70 percent of the expected global future demand for planes.