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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Video Professor Patrick Hudson: Safety Culture and Leadership

published on 23 February 2023

Professor Patrick Hudson discusses safety culture and leadership.

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Article Guide to Helicopter/Ship Operations

published on 13 July 2021

The ICS Guide to Helicopter/Ship Operations is the industry standard best practice guide for shipping companies, ships’ crew and helicopter operators.

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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 Wind drift making headway - practical experiments for getting useful data for planning

published on 30 May 2022

Another great education video by Knud Benedict (Germany): Practical experiments for getting useful data for planning.

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Video Wind pure drift encounter - practical experiments for getting useful data

published on 8 July 2022

How to get information for wind & current limits to be potentially encountered by thrusters – or current? - this will be described in this movie:
- Measure Drift speed, due to beam wind with no propulsion;
- Measure drift speed using full thrusters
- Estimate wind & current limits to be potentially encountered by thrusters – or current...
- Finally there is a simple formula as Rule of Thumb: the transverse drift speed is about 7-8% of wind speed!

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Article Safehaven Marine delivers a new Interceptor 48, 15m Pilot Vessel to the San Juan Bay Pilots, Puerto Rico.

by Marine-Pilots.com - published on 11 May 2020

Safehaven Marine have delivered one our Interceptor 48 pilot vessels to the San Juan Bay Pilots, Puerto Rico.
This marks Safehaven Marines 41st pilot boat delivered to portsWorldwide. ‘Harbor Thunder’ a very striking
design, she is powered by a pair of Cummins QSM11 engines at a heavy duty rating of 450hp, allowing the
vessel an economical continuous operational speed of 22-23kts.

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