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.

The Australasian Marine Pilots Institute is presenting a webinar via Zoom about ports providing ECDIS routes and passage plans to ships as part of the pre-arrival process.

It will take place on Thursday 11 February 2021 at 19:00 AEDT (08:00 UTC) and is free for AMPI/IMPA/UKMPA/NZMPA members. Non-members are also welcome to attend.

The Winter Edition of "The Mastes, Mates & Pilot" by the International Organization of Masters, Mates & Pilots (MM&P) has been released.

This book was only available in some areas, now the author has created an e-book version. Furthermore it´s available on amazon as a paperback.

Completely new book on Ship manoeuvring techniques based on new revealing facts which have been brought to light. Must read for all the mariners to understand the behaviour of ships and how to control her behaviour during manoeuvring.

A handy and simple tool to determine in a minimum time what is really needed as tug assistance, is the Bollard Pull Calculator which calculates in an approximate way the total required tug power for ships in various conditions of wind and current. This tool can be loaded as an app on the smart phone.

This safety video examines the safe set-up of pilot ladders and details the safety checks that should be carried out before using a plot ladder to ensure a safe boat transfer.

Load Testing of Accommodation Ladder Set. The Test was carried out under Class Surveyor's supervision at Roads.

Harbor Pilot is a short film from 1967 that gives viewers a brief look at what a harbor pilot is and does. The film opens with footage of a sailboat sailing at sea, followed by a shot of a rocky coastline (01:10) and then an aerial view of a modern harbor — the Port of Los Angeles. A large freight ship, SS Gemstone, is out at sea. A harbor pilot stands on land at the Port of Los Angeles, looking out over the harbor. He walks into the pilot station at the entrance to the harbor to check the...