https://aviationweek.com/defense/safran-inaugurates-open-rotor-engine-test-facility
Safran this week inaugurated a ground testbed for a full-scale counter-rotating open-rotor engine in Istres in southeast France, marking key progress in the...
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https://www.flightglobal.com/airbus-links-with-engine-makers-to-seek-clarity-from-authorities-on-open-rotor-airworthiness-requirements/86590.article
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