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 First Pilot Station Steers a Course for Seably Online Maritime Training

published on 5 November 2021

The Varna Pilot Station in Bulgaria has chosen Seably, the global online marketplace for bespoke maritime learning, to become the first pilot station to use the digital platform for its training.

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Video Pivot Point Specials 2 - position for ship moving ahead or astern

published on 12 May 2022

Another worthful video by Knud Benedict, Germany

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Video Operation of POD Ships - Discussion on Efficiency comparing Conventional and IN-OUT POD strategy

published on 8 June 2022

In this movie the efficiency of two different pod operation strategies is compared: With azimuth propeller ships the Pods can be used in two ways to control the speed, e.g. for speed reduction: 1. by adjusting the engine orders, e.g. by reducing the RPMs to get lower speed - this means to drive the ship in the same conventional way as for twin screw vessels, 2. by turning both pods either in- or outward (TOE-IN or TOE-OUT) to reduce the forward thrust and therefore reducing the speed – the...

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Video Why Do Ships Have Rope Ladders?

published on 4 February 2024

From "Casual Navigation": In this video, we investigate the Pilot Ladder. It is a crucial piece of equipment, used for embarking and disembarking a harbor pilot at sea.(contains advertising)

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Video Maritime Pilot Training IV - Man overboard manoeuvre

published on 12 May 2021

Training video IV on the correct behaviour in case of man overboard

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Article Increased Occurrence of Extreme Waves in the German North Sea

by Frank Diegel - published on 28 February 2025

Researchers have observed an unexpectedly high frequency of towering waves in the German North Sea, particularly near the island of Norderney. These extreme waves pose a significant risk to maritime infrastructure, including ships, offshore wind farms, and research platforms.

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Opinion If you facilitate 90% of the world's trade, would you influence change?

by Melvin Mathews - published on 1 December 2020

Without a shadow of doubt, shipping is a key enabler of our current way of life and the globalized world we live in today. The irony is that the average person is unaware of the significance or contribution of the shipping industry and how much we rely on ships working without disruption

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