Technical Articles Articles

Getting the right thickness of GRP laminate for your boats

Introduction GRP laminates are widely used in the fabrication of high-speed crafts and light crafts/boats globally. GRP stands for Glass Reinforced Plastic. As the name suggests, GRP contains glass fibers embedded into a plastic resin. This gives it higher strength,...

Designing Fillet Welds for Symmetrical Joint Sections

Introduction Fillet welds are the most commonly used weld types in marine structures. A fillet weld is used when there are two pieces of metal that are joined perpendicular to each other or at an angle. In this article, we will explore how to select the right size...

Designing a stanchion/stopper for sea-fastening of deck cargo

Introduction Stanchions – a familiar term for mariners and ship designers. What are Stanchions? A stanchion is generally a vertical pipe or beam which is used to support some structural item or provide support rails on the deck. In ships, the most common type of...

Hydrogen as an alternative fuel for ships to reduce emissions

,This article first appeared in the Feb 2019 edition of Marine Engineers Review. It is being reproduced with minor edits here for the readers of TheNavalArch's blog. Introduction The world is on facing a grave environmental challenge with an increase in carbon...

Vessel Draft Survey Accuracy

Vessel Draft Survey Accuracy

by Chris Zeringue, Owner, MTS Marine Techincal Surveyors ...

How to use a ship’s hydrostatics to calculate its draft and trim

How to use a ship’s hydrostatics to calculate its draft and trim

Introduction A ship’s hydrostatics, or hydrostats, is an oft used term in maritime parlance, and it refers to the...

Numerical integration methods for hull volume estimation

Numerical integration methods for hull volume estimation

Introduction The hull of a ship is a complex 3D geometry, and finding out its simple properties like volume, centroid,...

The bulbous bow – why some ships have it and others don’t

The bulbous bow – why some ships have it and others don’t

By Tamal Mukherjee, This is the Part 1 of a two part article on the Bulbous Bow. Part 2 can be accessed here *This...

Mitigating risks during subsea cable installation

Mitigating risks during subsea cable installation

Over the last 20 years, the interest in offshore wind power generation has increased substantially. Offshore Wind...

A simple method of selecting the right anchor for mooring a tanker/gas carrier

A simple method of selecting the right anchor for mooring a tanker/gas carrier

Anchoring is a fundamental and sensitive operation for a vessel. When a vessel is at anchor, it swings to align itself...

Designing a simple 4-point lashing system for a Deck Cargo

Designing a simple 4-point lashing system for a Deck Cargo

Introduction Lashing of a deck cargo on a ship involves different means and mechanisms to secure the cargo to the deck...

Calculating a Ship’s Design MBL using OCIMF MEG-4

Calculating a Ship’s Design MBL using OCIMF MEG-4

In Part 1 of this article, we saw a step by step guide to calculate the Environmental forces on a vessel based on...

Selecting the right equipment for towing operations – Emergency Towing

Selecting the right equipment for towing operations – Emergency Towing

In Part 1 of the article, we discussed the regular towing arrangements and how to select the towing gear for the same....

Preliminary Rigging Arrangement Design OF 4 point, Single Hook Lifts for Non-Specialists

Preliminary Rigging Arrangement Design OF 4 point, Single Hook Lifts for Non-Specialists

by Michael Harwood, PE, PMP Overview Lifting by crane is a basic construction operation that dates back to at least...

Autonomous ships of the future

Autonomous ships of the future

Automation is in good servant but a bad master!By Dr L R Chari, ex-Executive Director of Shipping...

The digital transformation of the maritime domain

The digital transformation of the maritime domain

(This article originally appeared in June 2018 edition of Marine Engineers Review, Vol 12, Issue 7,...

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