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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 New book: The Situational Awareness & The Port Pilotage Services

published on 8 February 2021

Serkan Kahraman and Yusuf Zorba have published a new book for marine pilots. In this book, maritime pilots and shipmasters’ situational awareness levels have been analyzed using a bridge simulator system and the results have been obtained.

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Video SWATH vs. Mono Hull

published on 21 December 2019

Challenge between SWATH tender "DÖSE" and two 30m mono hull vessels in 2013.

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Video Zig-Zag-Test-Manoeuvre for Yaw Stability, IMO Manoeuvring Standards and Crash Stop

published on 26 November 2021

Another valuable explanatory video by Knud Benedict:
Zig-Zag-Test-Manoeuvre for Yaw Stability, IMO Manoeuvring Standards and Crash Stop

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Video Video of Training - Arrangements of embarkation and disembarkation of Practical

published on 6 September 2020

Summary: Important lessons, that they can assist the Practical one, in the best possible way, in the transfer operations.
Found on YouTube. Created by "Praticagem do Brasil".
This video was elaborated by the National Council of Praticagem with the objective of reminding to the masters and sailors, some important lessons, so that they can assist the Practical one, in the best possible way, in the transfer operations.

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Opinion Scientific Fact: The ‘traditional’ understanding of the ship’s pivot point is wrong!

by Tim Cummins, Harbour Pilot, Portsmouth International Port - published on 9 July 2020

In fact, the pivot point that we “see” is a trick of the eye, it looks like the ship is rotating about this point but in fact it is elsewhere, a point that you cannot see.

Article The Road Towards Autonomous Ship Handling with Tugs

by Captain Henk Hensen (Marine Consultant) - published on 5 November 2019

Currently, several means of transport are undergoing an accelerated development towards automation and automated movements. This development will also impact future ship handling with tugs. A glimpse into the future of tug boat operation.

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Article AIMPA Journal- February 2021 issue VIII

by AIMPA - All India Marine Pilots' Association - published on 17 February 2021

The All India Maritime Pilots' Association has released its new journal for February

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