The National Transportation Safety Board (NTSB) has blamed the 2021 uncontained failure of Pratt & Whitey PW4077 turbofan partly on engine design and testing failures and on inadequate fan blade ...
An illustration of the UltraFan geared turbofan engine, with the world's largest fan blades. Rolls-Royce reports it started manufacturing a series of geared turbofan engine blades for the demonstrator ...
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