Negative Constant in Draft Survey
Apr01

Negative Constant in Draft Survey

What is Ship Constant? The ships constant is the difference between a vessels design lightship and it’s actual displacement when empty. The ships constant is determined by a draft survey. The ships constant will vary over the life of the vessel. Unintentional Reasons for Variations – Sedimentation in ballast or fuel oil tanks – Corrosion – Fouling of hull – Coating build-up (paintwork, tank coatings,...

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