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.

This video explores the question of why ships are so difficult to manoeuvre in reverse.

Port Revel is a ship handling training center for pilots, captains and officers. Unique in its kind, it allows to acquire new skills, to improve on different manned models at scale 1 / 25th.

The Master and pilot are dependant on each other for a safe and successful beginning or end of a voyage. They are both operating in a foreign environment.

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...

Cortando Ondas vamos juntos

The hazards of Pilot boarding
Throughout 2016, the International Maritime Pilots’ Association (IMPA) held a safety campaign focused upon the standard of pilot ladders and associated equipment. CHIRP supported this campaign and received many reports on the subject.
This first report describes issues concerning pilot access near
the non-parallel ends of a ship, and use of a retractable platform.