Navigation Basics

By hartis Navigation, Nautical Information No Comments

Anchoring

The process of selecting an anchorage and maneuvering a vessel requires thorough preparation, precise execution, and adherence to good seamanship. Mariners must carefully consider various environmental and operational factors to ensure safety and stability. Below is a detailed guide to anchorage selection, anchor dropping, anchorage checking, mooring, and alongside maneuvers. Anchorage Selection Before proceeding to […]

By hartis Navigation No Comments

Compass

Magnetic Compass It is a valuable and basic navigational instrument that is fully combined with the vessel’s safety. It consists of the magnetic needle that is freely hanged on a horizontal plane. When at land, it is affected by the earth’s magnetism and is oriented towards the direction of the magnetic North. In iron vessels, […]

By hartis Navigation, Maritime Safety No Comments

Light Marking

The term ‘light marking’ defines the device that is installed outside from the vessel and emits light from a determined geographical point in order to help the mariner to determine his position, to navigate with safety, to mark and warn for nautical dangers and other obstacles. In general, these devices are called ‘lights’ and are […]

By hartis Navigation, Maritime Safety No Comments

IALA Maritime Buoyage System

The need for the establishment of a unified buoyage system became crucial the last decades, because of the great extend of the international navigational traffic, the accidents and, finally, because of the variety of the buoyage systems that were locally applied by the States. It has to be highlighted that during 1975 more than 30 […]

By hartis Navigation, Nautical Cartography No Comments

Printed Nautical Charts

Regarding to their scale, nautical maps are divided into two categories. Large scale charts and small scale charts. The map’s scale shows how many times a surface or a line of specific dimensions on the earth has been made smaller. This surface or line is depicted on the map. This means that the bigger the […]

By hartis Navigation, Maritime Safety No Comments

COLREGs – Applicability and General Definitions

1. These rules shall apply to all vessels upon the high seas and in all waters connected therewith navigable by seagoing vessels. 2. Nothing in these Rules shall interfere with the operation of special rules made by an appropriate authority for road steads, harbors, rivers, lakes or inland waterways connected with the high seas and […]

Anchoring

Compass

Light Marking

IALA Maritime Buoyage System

Printed Nautical Charts

COLREGs – Applicability and General Definitions

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