Airliners with fans embedded in the tail to reenergize the fuselage wake and reduce drag are attracting interest as a potential next step in cutting the fuel burn of commercial aircraft. But there is debate over whether such designs are also a promising initial application of electric propulsion to large aircraft. NASA’s single-aisle turboelectric aircraft with aft boundary-layer propulsor concept, or STARC-ABL, is drawing attention thanks to studies indicating a 7-12% reduction in ...


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