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      • Annex 1 – Positioning and technical details of lights and shapes
      • ANNEX II – Additional Signals for Fishing Vessels Fishing in Close Proximity
      • ANNEX III – Technical Details of Sound Signal Appliances
      • ANNEX IV – Distress Signals
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Longitudinal Stability for Ships

longitudinal-stability

Any Ship when at rest in calm water, the COB and the COG will be in a vertical line.Pitch Pitch is caused when a wave changes the underwater volume of a ship, making the forces of gravity and buoyancy to get separated by a distance and forming a couple which leads to dip or uplift in the bow or the stern of vessel. The up and down movement of the ship's ends, due to longitudinal shift of COB resulting from wave action, is called pitch.If a wave cause an increase in the underwater volume aft, and a decrease fwd, the COB will shift aft. The forces of gravity and buoyancy will now get … [Read more...]

By Cult of Sea Filed Under: Ship Stability Tagged With: centre of flotation, cob, cof, cog, longitudinal metacentre, longitudinal stability, ML, pitch, Ship Stability, trim

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