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.

Entrainement sur simulateur des pilotes du Havre-Fécamp : pilotage des barges transportant les embases gravitaires du champ éolien offshore de Fécamp. Plus de 500 H de formation et de travail préparatoire ont été nécessaires pour préparer ces opérations de pilotage portuaire exceptionnelles

Article by Seyed Behbood Issa-Zadeh & Claudia Lizette Garay-Rondero

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...

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.

Report by nC2 Engineering Consultancy at the University of Southampton on behalf of the International Maritime Pilots' Association (IMPA) to investigate the effectiveness and impact of different methods of securing pilot ladders in medium lengths in a laboratory-based project.

Join me for a full shift working on the River Tyne as part of the pilot boat crew — serving ships, surveying the river, using our underwater drone, and even lifting the boat out for essential repairs. From early starts to emergency call-outs, this video gives you a real look behind the scenes at life on the water. ⚙️ What’s in this video: Pilot boat duties & ship transfers River Tyne survey missions Underwater drone footage Boat maintenance and lift-out Responding to emergency call-outs 🎥...

It takes all sorts of roles to ensure safe and successful operations at Aberdeen Harbour. Meet Finn, a Marine Pilot, and find out why he enjoys working at the port...