NASA Readies For Small-Core Engine Awards

Pratt & Whitney concept for MIT/Aurora D8
Early commercial small-core studies included this Pratt & Whitney concept for the MIT/Aurora D8 double-bubble airliner project.
Credit: Pratt & Whitney
Electric propulsion is coming to aviation, but despite advances in alternative powerplants, gas turbines remain the only viable option for meeting the power density needs of medium and large commercial airliners for decades to come. While improvements in propulsive efficiency—largely obtained...
Guy Norris

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

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