Navigation

By hartis Navigation, Maritime Safety No Comments

Risk of Collision

1. Every vessel shall use all available means appropriate to the prevailing circumstances and conditions to determine if risk of collision exists. If there is any doubt such risk shall be deemed to exist. 2. Proper use shall be made of radar equipment if fitted and operational, including long-range scanning to obtain early warning of […]

By hartis Navigation No Comments

Forces Affecting The Vessel

The correct prediction of a vessel’s reaction to a specific command demands the complete comprehension of both the nature and the forces that are applied on it. There are six sources of forces that can influence a vessel. These are the propeller, the rudder, the static line, the anchorage means, the wind, and finally, the […]

By hartis Navigation, Hydrography No Comments

Geographical Coordinates

The geographical coordinates are two: the latitude and the longitude. They determine the exact position of places and navigable means on the Earth’s surface. The network of geographical coordinates on the elliptic or on the sphere is a network of meridians and parallels. Is, in fact, a system of surface coordinates and presents in two […]

By hartis Navigation, Maritime Safety No Comments

COLREG Rule 8 – Action to Avoid Collision

Navigating the open seas involves an inherent level of risk, and the ability to take decisive and effective action to avoid collisions is crucial for every mariner. Rule 8 of the International Regulations for Preventing Collisions at Sea (COLREGs), established by the International Maritime Organization (IMO), outlines specific principles to guide vessels in avoiding collisions. […]

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, Hydrography No Comments

Direction

Direction of an object or a point on the Earth is called the relative position of the object in comparison to another object that is considered to be the initial, without taking under consideration, as a criterion, the distance between them. The most definite and practically comprehensible direction is the one that is oriented in […]

Risk of Collision

Forces Affecting The Vessel

Geographical Coordinates

COLREG Rule 8 – Action to Avoid Collision

Anchoring

Direction

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