Single-aisle passenger aircraft are the workhorse plane of commercial aviation, producing nearly half of the industry's greenhouse gas emissions.But a radical new wing design developed by and Boeing promises to make them leaner, cleaner and more efficient, cutting emissions by 30 percent.NASA's collaboration to build, test, and fly a full-scale demonstrator—which will carry the US Air Force test name X-66A—will see a $425 million commitment from the space agency as well as $725 million invested by Boeing and its industry partners.
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