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How GPS works? Trilateration explained


published on 4 July 2019 184 -

How GPS works? Trilateration explained
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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 Education And Training Of Pilots In The Netherlands

by Eline van der Vlist-Lammers (Coordinator education and training for STODEL) and Ed Verbeek (Master Mariner) - published on 30 September 2022

Article originally published in SWZ|Maritime September 2022

Through the years, the Dutch Pilots have developed a system of selection, initial education and continual professional training. What is the current state of affairs?

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Video New podded cruise ship at Port Revel

published on 24 October 2019

A new 1:25 cruise ship manned model, the "Voyager", was added to our fleet in 2014. She is 311 m long and is fitted with 2 azimuthing pods (and one Fixipod) and powerful bow thrusters. Training is conducted in emergency conditions like engine failures, crash stops, tight turns ...

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Article Pilot dispatching problem along a maritime corridor: a case study in the St. Lawrence River

published on 13 May 2025

This study presents a novel decision support process for a pilot dispatching problem in the St. Lawrence River. It integrates a comprehensive set of time-based performance measures, including working time, waiting time, and skill level differences, to optimize fairness and operational efficiency in pilot dispatching.

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Video Physical Pilot Ladder Simulator (Chile)

published on 2 January 2020

This video has already been published for the first time in 2020. Please also note the second, more recent video in the appendix. This physical ladder simulator was designed for crew training in the ladder arrangement and for all the users especially for pilots.

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Video Safe set-up of pilot ladders

published on 8 January 2024

This safety video examines the safe set-up of pilot ladders and details the safety checks that should be carried out before using a plot ladder to ensure a safe boat transfer.

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Article Trusteddocks: Bottleneck at Shipyards and Resulting Price Increases Ahead

by trusteddocks.com GmbH - published on 30 June 2020

This market intelligence allows all interested parties to measure the shipyards industry and to follow flows in demand and supply, enabling shipping companies’ management to make informed, fact-based decisions on docking requirements.

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Video Pilot Boat PB1500 by UZMAR

published on 24 June 2020

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