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.

SAMMON Introduction into Ships Manoeuvring Prediction
- newly made Video to display the principles of SAMMON

The Bollard Pull value, which can be interpreted as the maximum thrust that is developed for a specific amount of time by the propulsion systems of any vessel to the fullest , when it has zero speed in the forward direction, is the criterion that allows us to understand how suitable a tugboat is for a port maneuver or a towing operation.

Training video IV on the correct behaviour in case of man overboard

The latest summary from PTR Holland on the subject of pilot ladders. Here is the most important information on maintenance, use and replacement & insepection record book.

To monitor the vessel’s progress, the pilot had set up his portable pilotage unit (PPU). He had connected the rate-of-turn generator to the vessel’s pilot plug and had set a variable range marker on the radar with a radius of 0.5 nm.

The following article appeared in AIMPA magazine number 2 about the strength and testing of pilot ladders : There is much more information about pilot ladders in the AIMPA magazine, second issue, if you wish to read more you can download a copy at the bottom of this post.

PSA Marine (Pte) Ltd (“PSA Marine”) joins the global movement towards sustainable shipping by reducing carbon footprint with the use of a digital solution – Vessel Pilot Communication (“VPC”), launched on 25 August 2020. With VPC, PSA Marine ensures that critical and timely updates on pilot boarding times and traffic conditions in and around the pilot boarding grounds are communicated to vessel masters.