How does GPS work?

Of course, as a Nautical Specialist, I also deal with the international discussion on the advantages and disadvantages of satellite-based navigation, e-navigation and conventional terrestrial and astronomical navigation.

In my announced sequel, the second part of GPS, it is primarily about the technical and physical operational and functional limitations to which GPS is subject. These limitations, in part, have serious implications for the accuracy of GPS, and even go as far as limiting the functionality of GPS in its functions or even making it impossible. In doing so,

The vulnerability of GNSS in shore-based use is definitely different and to be regarded as much more risky than on the high seas.

Adding map and speedometer widgets to your GoPro video clips. Tips by Capt. Kris de Decker

SAMMON Lecturing Video describing
"Pivot Point Demonstration"
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SAMMON - the IDEAL tool to identify manoeuvring capabilities of a ship - SAMMON - learning the EFFECTIVE way

Join Great Lakes maritime historian and antiquarian Brendon Baillod as he discusses the restoration and conservation of a rare and very early 1865 Thompson's Great Lakes Coast Pilot. Early coast pilot books were kept on every schooner and steamer and Lakes and contain important details about the history of harbors, navigation, obstructions and shipwrecks on the Lakes. This 1865 Thompson's is among the rarest and also badly in need of stabilization. Enjoy this two part series where this...

This section should give a short introduction to: Operational aspects of AIS Functions and features Human aspects Key Points The AIS transponder unit. Automatic communication. SOLAS requirements. AIS Information sent by ships. Static information update. MMSI Dynamic information update. Voyage related information update. Checking AIS data. BIIT Display Of AIS data. Recommended AIS symbols. Sleeping target symbol. Activated target symbol. Selected target symbol. Dangerous target...

Required tug power and number of tugs needed in variable conditions of wind, current and waves isin most cases an assessment made by pilots based on their professional experience. However, assessments will raise questions by lawyers if something goes wrong. They will use tools to calculate what really is needed with respect to tug power and number of tugs. They have furthermore the advantage of time.

On this episode of What's Going On With Shipping, Sal Mercogliano examines the National Transportation Safety Board's Report on the capsizing of the roll-on/roll-off vehicle carrier MV Golden Ray in St. Simons Sound, Georgia on September 8, 2019.

Boat builder Metal Shark recently delivered a welded-aluminum 45 Defiant crew boat to Anchorage Launch Services, an Oregon-based operator providing launch, line, pilotage, and cargo services to vessels on the Columbia and Willamette Rivers.