During integral alternator testing, Calder discovered a harmonic vibration phenomenon that could break automotive timing belts (used in the system for durability) in just 4 minutes, a failure mode unique to his specific boat at certain engine speeds and with particular resonant features.
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Nigel CalderEvidence Quote
“i could create something called a harmonic vibration and i could break a belt in four minutes... nobody else could do it it was it was unique to our boat and certain speeds and and resonant features”
Created: 8/13/2026, 9:56:33 AM
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