Marine Operations Articles

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 Weight Optimization of Framed Steel Structures

1      Abstract A semi-automated structural weight optimization system is presented for framed structures of post and beam construction which is based on basic structural member design principles.   The approach is to adjust member properties in a manner that...

How to identify the spoolpiece lifting points?

In the offshore construction industry, the connection between the newly installed pipeline and the riser is accomplished via a series of ‘spoolpieces’ (or spools). The spool is fabricated by welding pipe joints to form an L-shaped, Z-shaped, or possibly a straight...