NASA X-66A Program Begins With MD-90 Conversion Work

Boeing MD-90

The Boeing-NASA X-66A will be developed from an MD-90-30 variant originally delivered to China Northern in 1999.

Credit: Boeing/NASA
A lot is riding on the success of the X-66A—NASA’s Sustainable Flight Demonstrator. Not only is the slender-winged aircraft the research agency’s first full-scale X-plane focused on helping the U.S. achieve its goal of net-zero aviation greenhouse gas emissions, but for program partner Boeing, it is...
Guy Norris

Guy is a Senior Editor for Aviation Week, covering technology and propulsion. He is based in Colorado Springs.

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