Spare Engines: A New Era?

Credit: Mark Hillary, Rolls Royce jet engine On a BA Boeing 777
Spare engines ensure unbroken airline operations in the event of scheduled and unplanned engine removals. Traditionally, engine lessors have estimated demand for their services on the basis of one spare for every 10 operational engines, but that ratio may widen as new technology comes on stream...
Alex Derber

Alex Derber, a UK-based aviation journalist, is editor of the Engine Yearbook and a contributor to Aviation Week and Inside MRO.

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