Ship Stability - Load lines, effect of density on draft and displacement

This video explains the concepts of ship's load lines and the effect of density on draft and displacement in the area of ship stability.
The video uses 4 different numerical examples to explain the concepts and math behind the calculations.
The concepts of fresh water allowance (FWA), dock water allowance (DWA), relative density (RD), displacement (W), tonnes per centimer (TPC), and drawing of the load lines are also discussed in this video.
Students are advised to watch the other videos in the 'ship stability' series before watching this video:
Ship stability basics of Volume, Mass, and Density:    • Ship stability basics - volume, mass,...  
Ship stability basics of Pressure and Thrust:    • Ship Stability Basics  - Pressure and...  
Ship Stability - Displacement, under-water volume, and density:
   • Ship Stability - Displacement, under ...  
Ship Stability: Deadweight, TPC, and Reserve Buoyancy
   • Ship Stability -  Deadweight, TPC, an...