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Bending the 777-9: Inside fatigue testing for three lifetimes

From Boeing: Photo: A close up of the wing of the 777-9 currently undergoing fatigue testing. (Patrick Rodwell photo) The test rig’s hydraulics hummed and whirred like a roller coaster up its first big hill. A massive wing rose and fell in a steady cadence — like a physical therapist testing a shoulder joint — […]