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On a Capesize bulk carrier, a draft reading error of just 1 centimetre represents approximately 60-100 tonnes of cargo. That is why the Quarter Mean formula is essential -- it weights the midship reading six times more than forward and aft, suppressing the effect of hull bending (hogging or sagging).
Manual readings are subject to parallax errors, wave interference, and human fatigue. GOTEC's AI-based draft measurement system reads all six draft marks simultaneously with machine vision, reducing survey time by 30% and eliminating reading errors. Explore our product range for ports, terminals, and independent surveyors.
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