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What is FWA and DWA Calculation Formulas about?

The document discusses formulas for calculating the Fresh Water Allowance (FWA) and Dock Water Allowance (DWA) of a ship based on changes in density between different water types. The FWA is calculated as the change in draught when going from fresh to salt water. The DWA is calculated as the change in draught when going from dock to salt water. Both formulas assume the waterplane area does not change with small changes in draught.

Author

Alberto Lunardini

Language

EN