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As an UltraFan demonstrator is prepared for 2021 tests, chief engineer Andy Geer tells Aviation Week editors about Rolls' faith in a market recovery—and why UltraFan will be an engine for all seasons.
By Aviation Week4.2
390390 ratings
As an UltraFan demonstrator is prepared for 2021 tests, chief engineer Andy Geer tells Aviation Week editors about Rolls' faith in a market recovery—and why UltraFan will be an engine for all seasons.

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