How GPS works? Trilateration explained

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.

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,

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

We take a look at some of the dangerous ladder arrangements provided by ships when attempting to take maritime pilots on board. Our message is simple: if you are offered an unsafe or non-compliant ladder, do not board!

When publishing articles or pictures about pilots and their pilot ladders, very often we see the use of backpacks. The use of backpacks is controversial, since its weight, or buoyancy, can influence the functioning of the lifejacket used.

SAMMON Lecturing Video describing
"Pivot Point Demonstration"
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SAMMON - the IDEAL tool to identify manoeuvring capabilities of a ship - SAMMON - learning the EFFECTIVE way

Specialized training for maritime pilots
Quebec City, Quebec, Canada – June 23, 2020 – The Maritime Simulation and Resource Centre (MSRC), a world-class pilot simulation training and port feasibility studies facility, is pleased to announce the release of an informational video on the new S-102 standards on surface bathymetry products.
In the video, Captain Pascal Rhéaume, pilot and member of the technical committee for the Corporation of Lower St-Lawrence Pilots, an active stakeholder...

RINA ACT Technical Meeting
23 November 2021
Port Ash Australia: Ship Handling Training & Research Centre
By A. Beazley, Port Ash, Australia

Here’s a cool little video of the rough weather sea trails of ‘Port Láirge’ The Port of Waterford’s new Interceptor 48 pilot boat ready to be delivered next week. We had two days of rough weather, a Force 8 with 3.5m seas putting up some surf breakers over the Daunt and a second day with winds reaching Force 10 offshore, with 55kts of wind and 5m swells, allowing us to properly test her capabilities ensuring she's fully fit for purpose for the pilots and crew. Doing so we captured some...

We’re doing another day of testing with the self-propelled scale model of T-2000. Obviously the conditions here do comprehensively exceed the designs operational envelope, as in scale proportion to the model, the waves must be I guess around 10-20 metres in size. However it’s interesting to understand the designs ultimate limits. The model is built to a scale of fourteen to one, and this equals 20 metres in real life size. Later, by slowing down the video, so that it matches the speed of...