The ecoDemonstrator Program is a flight test research program of the Boeing aircraft company, which has used a series of specially modified aircraft to develop and test aviation technologies designed to improve fuel economy and reduce the noise and ecological footprint of airliners. The ecoDemonstrator Program followed Boeing's Quiet Technology Demonstrator program, to develop a quieter engine using chevrons on the rear of the nacelle and exhaust nozzles.
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It was added on 29 April 2021, and has since been viewed 204 times.
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