Maritime Industry Articles

Preparation for Dry-docking of an oil tanker: A Chief Engineer’s approach

Introduction Dry-docking of a vessel is required at every 5 yearly intervals to carry out inspection of hull, propeller and other components which are normally submersed in water all the time. This is a requirement by ship’s classification societies. However, some...

Using simple tools for efficient Passage Planning for seagoing vessels

Introduction Planning a vessel’s voyage is a critical detailed exercise, and the main goal is to ensure safe and efficient passage between two ports. The Master has the responsibility for the vessel voyage planning, but very often he delegates the actual voyage...

Designing a closed chock as per IACS rules

Introduction   Chocks are used universally for mooring and towing operations on ships. For towing operations, Chocks are used for guiding the towing rope from the winch through the outer shell of the vessel to the tug. For mooring operations, the chock is used to...

The Optim22 method of hull optimization – Part 2

 This is a follow-up article to the previous article on Framed Structures Optimization. 1.1      Abstract A previous article introduced the Optim22 method.  This one adds additional background information plus 3 more case studies to...