@maritimemaster: How do you weigh 50,000 tonnes of cargo without ever putting it on a scale? You let the ship weigh herself, because a floating hull displaces its own weight in water, so you read her draft marks in ballast and again loaded, subtract, then correct for everything else that changed, taking off weight brought aboard and adding back the ballast she pumped out, to pin the cargo to within half a percent. Save this before your next survey, and watch the mean draft video next. #draftsurvey #bulkcarrier #merchantnavy #seamanship #maritime

Maritime Master

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Thursday 06 August 2026 06:00:00 GMT