ship handling

Home page|| Tanker Notes || Container Ship Operations || Ocean Navigation ||

Maintaining good positive GoM in Container Stowage Plan

Maintaining a good positive GoM is very important but it is not the only criterion for a stable ship.

Dynamic stability of the vessel is equally important and is indicated by the area under the curve of statical stability (GZ curve).

A ship with a small GM will be "tender" - have a long roll period - a low GM increases the risk of a ship capsizing in rough weather and more likely to develop "synchronized rolling".

If a ship with low GM is damaged and partially flooded the metacentric height will be reduced further and make it even less stable.

On the other hand, a too large metacentric height can cause a vessel to be too "stiff"; excessive stability is uncomfortable for persons on board because it quickly snaps back upright after a wave or wind gust which heeled it over has passed.

An overly stiff vessel rolls with a short period and high amplitude. This can lead to damage to the ship and cause cargo lashing to loosen or break.




Related Topics

Draft, Trim and Heel affecting Hull Strength and Stability of containership

IMO Intact Stability Criterion for containership

Severe Wind and Rolling criterion affecting Hull Strength and Stability of containership

Visibility from Bridge affecting navigation of containership

Propeller immersion affecting navigation of containership

Shearing forces, Bending moments and Torsional moment affecting Hull Strength and Stability of containership

Other factors affecting Hull Strength and Stability as necessary







Other info pages !

Ships Charterparties Related terms & guideline
Stevedores injury How to prevent injury onboard
Environmental issues How to prevent marine pollution
Cargo & Ballast Handling Safety Guideline
Reefer cargo handling Troubleshoot and countermeasures
DG cargo handling Procedures & Guidelines
Safety in engine room Standard procedures
Questions from user and feedback Read our knowledgebase
Home page




ShipsBusiness.com is merely an informational site about various aspects of ships operation,maintenance procedure, prevention of pollution and many safety guideline. The procedures explained here are only indicative, not exhaustive in nature and one must always be guided by practices of good seamanship.

User feedback is important to update our database. For any comment or suggestions please Contact us
Site Use and Privacy - Read our privacy policy and site use information.
//Home //Terms and conditions of use

Copyright © 2015 www.shipsbusiness.com All rights reserved.