Marine Navigation

Flags on ships play an important role in the identification of ships, communication between vessels and port authorities or shore stations, signifying if the ship adheres to certain maritime regulations etc.

Hull form optimization remains the classical approach for designers in not only reducing frictional or drag effects but also the overall resistance quotient as the wave resistance also depends greatly on the geometrical properties of the hull. 

The manpower distribution in seagoing vessels is essentially organised in something known as the ship organization chart based on position and responsibilities. Read the article to know more.

In maritime transportation, dangerous goods are classified and transported under the International Maritime Dangerous Goods Code or IMDG code. This code is regulated by the International Maritime Organization [IMO].

INTERCO or International Code of Signals is an international system of communication used by seafarers on onboard vessels to convey important information, pertaining to navigation, safety and other operational issues.

Under the Fixed Berthing Window system, ports and carriers agree on fixed berthing windows, i.e. pre-decided times when the container carrier’s vessel will arrive at the port and will be berthed. Know more inside the article.

The system of lateral marks is fixed for a particular region, except rarely on occasions when the designated routes for vessels are updated. The lateral marks at a specific region follow a particular pattern that a seafarer or a navigator needs to be well versed in. 

An isolated danger mark is a sea mark employed to identify underwater hazards like submerged wrecks or objects, rocks, boulders, reefs, shoals, and other underwater geographical features like a subsea hill or ridge that tips dangerously close to the waterline.