Machinists union members ratified a new contract with The Boeing Co., ending an eight-week strike that cut the airplane maker's profits and stalled jetliner deliveries. Saturday's vote by members of the union, which represents about 27,000 workers at plants in Washington state, Oregon and Kansas, was about 74 percent in favor of the proposal five days after the two sides tentatively agreed to the deal and union leaders recommended its approval. The workers are expected to return to Boeing's commercial airplane factories, which have been closed since the Sept. 6 walkout, starting Sunday night. “This contract gives the workers at Boeing an opportunity to share in the extraordinary success this company has achieved over the past several years,” Mark Blondin, the union's aerospace coordinator and chief negotiator, said in a union news release. “It also recognizes the need to act with foresight to protect the next generation of aerospace jobs. These members helped make Boeing the company it is today, and they have every right to be a part of its future,” he said. The union has said the contract protects more than 5,000 factory jobs, prevents the outsourcing of certain positions and preserves health care benefits. It also promises pay increases over four years rather than three, as outlined in earlier offers.