Video

How does GPS work?


published on 4 July 2019 326 -

by Casual Navigation
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Article GPS (Part 1) - Structure, mode of operation, technical and physical fundamentals of GPS

by Capt. Gunter Schütze, Thailand/Germany - published on 30 January 2020

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.

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Article GPS (Part 2), physical and technical errors of GNSS - an error analysis

by Capt. Gunter Schütze, Thailand/Germany - published on 26 February 2020

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,

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Article GPS (Part 3) - Accidental interferences and intended Interferences by extern technical sytems

by Capt. Gunter Schütze, Thailand/Germany - published on 6 May 2020

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

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Article A review of the ship’s pivot point: Science, Maths and Observation’ Where is the centre of a ship’s rotation?

by Tim Cummins, Harbour Pilot, Portsmouth International Port - published on 17 July 2020

This my attempt to do just that. This is a summary of all scientific papers and articles that I could find about the ship’s pivot point. I have added links to any videos associated with the publications and have also included any useful diagrams or equations that the authors published to help explain their research.

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Article Pilots and VTS operators working together to improve maritime safety

published on 2 February 2022

The Norwegian Coastal Administration has signed an agreement with Aboa Mare to provide a new
course for pilots and VTS operators. By practising together in a simulator, maritime safety along the
Norwegian coast will be reinforced.

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Video Interaction Bank Effect

published on 30 June 2022

Educational and descriptive video

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Video How Ship Anchor Works? - Procedure For Anchoring a Ship at Sea

published on 11 July 2020

#Anchor #shipanchor #windlass Anchoring is one of the very frequent operations onboard ships. A number of variables and external factors influence the duration and location of an anchoring operation. While the type of seabed is of utmost importance during anchoring, soft muddy grounds or clay bottoms are best preferred. It should be taken care that the anchoring bottom is free of power lines, submarine cables, pipelines or rocks. Various methods on anchoring include consideration of...

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Video Understanding and Preventing Tug & Barge Risks

published on 15 January 2021

Blog: https://www.merrimacins.com/understanding-and-preventing-tug-barge-risks/ Understanding and Preventing Tug & Barge Risks The maritime industry relies on tugboats and barges for a wide range of applications. Tugs are used to pilot vessels into and out of ports, while barges are used to transport bulk materials. The relationship between tugs and barges is critical, as most barges are not self-propelled and must rely on the skilled operation of a tug or tugs for propulsion. At Merrimac...

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Video BRO DELIVERER inbound River Clyde 08JUL20

published on 4 September 2020

River Clyde inbound to Rothesay Dock (Clydebank) Fuel Berth
~hours of darkness~
BRO DELIVERER (146m x 22m)
08 July 2020

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Video Tales from a Great Lakes Pilot

published on 9 February 2026

Great Lakes Pilot Eric Treece joined us in the Virtual Visitor Center for an interview about his career as a fleet captain and his experiences now as a pilot working aboard a variety of ships. In the course of the conversation, he shares some spectacular photos he has taken over the years. TECHNICAL NOTE: there are a few audio glitches we could not correct but it only impacts a few spots.

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