As engine and airframe manufacturers wrestle with ways to transition to the more integrated hybrid- and all-electric-powered aircraft designs of the future, developers of an innovative gear-driven gas turbine concept believe they could have a promising solution to bridge the gap. The Dual-Drive Booster (DDB) is designed to fit within the confines of current two-shaft turbofan configurations and, unlike other gear-driven engines, uses a low-pressure compressor/booster driven by an epicyclic ...


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