Emergency Generator Operation and Testing Procedures The ship’s emergency generator provides power when the main generator fails, resulting in a power outage. As generally required, there should be at least two generator operating modes: battery operation and hydraulic or pneumatic operation. If the second operating mode fails, the Port State Control (PSC) may detain the […]
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What are Nitrogen Oxides (NOx)? Where Do They Come From? Nitrogen oxide pollution refers to the pollution caused by the release of nitrogen oxides into the atmosphere in gaseous form during the high-temperature combustion of fossil fuels. These nitrogen oxides are primarily composed of two molecules: nitric oxide (NO) and nitrogen dioxide (NO₂), along with
South Korean maritime archaeologists have recovered the intact remains of a 15th-century cargo ship from the seabed, providing one of the strongest physical records yet of the Joseon Dynasty’s maritime logistics network. The vessel—designated Mado 4—was successfully lifted from the seabed in October 2025, and publicly announced on 10 November by the National Research Institute
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What is Dead Reckoning Navigation Technique (Maritime Position Calculation) At Sea? Before the advent of modern navigation aids such as the Global Positioning System (GPS) and Electronic Chart Display and Information System (ECDIS), maritime positioning relied primarily on celestial and terrestrial methods, especially the reference to radio navigation stations. Thanks to the 32-bearing magnetic compass,
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What are Lubber lines? For centuries, the magnetic compass has been considered the primary navigation tool for ocean voyages. Today, advanced technologies such as the Global Positioning System (GPS) or digital systems using high-precision satellite data have made navigation much easier and enabled communication with ships from virtually anywhere. Nevertheless, the compass remains a backup
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In a pioneering move for maritime decarbonisation, CALCAREA Inc. and AURELIA Design B.V. announced a collaboration aimed at integrating ocean-based carbon capture technology directly into vessel design. The partnership will combine CALCAREA’s novel limestone weathering carbon-removal process—where CO₂ reacts with seawater and limestone to create stable bicarbonates—with AURELIA’s expertise in green ship design and systems
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A milestone in bilateral naval diplomacy was achieved on 8 November 2025 when the PNS Saif, a PNS Saif-class (F-22P Zulfiquar-class) missile frigate of the Pakistan Navy, berthed at Chattogram Port in Bangladesh for a four-day goodwill visit—the first time a Pakistani warship has visited Bangladesh since the 1971 Liberation War. The ship was received
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What Is a Sundial Compass and Why Get One? A sundial compass is a clever tool that does two jobs at once. It tells you the time by using the sun’s shadow, and it also shows north, south, east, and west like a normal compass. People who love hiking, sailing, or just collecting old-style items
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Complete Introduction of Fluxgate Compass A fluxgate compass is a device used to determine precise geographical direction on a ship. The Fluxgate compass is a crucial and unique tool in maritime navigation because it does not operate automatically like a traditional magnetic compass. Technically, the Fluxgate compass is electromagnetic, functioning similarly to a traditional compass.
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10 Essential Personal Protective Equipment (PPE) on Board Ships For any professional seafarer working on board, personal safety and the safety of their crew are paramount. All shipping companies ensure that their crew adheres to personal safety procedures and regulations in all operations performed on board. To maximize safety on board, a fundamental step is
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