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.

There are many things in both our everyday and professional lives which we take for granted and never question the origins of, an example of this might be the IMPA recommended ‘pilot mark or pilot line’, which is sometimes seen on the side of vessels indicating where a vessels freeboard exceeds 9 metres.

Neuer Studiengang ab dem Wintersemester 2024/2025!
New degree programme from winter semester 2024/2025!

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

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.

The video was found on some social media channels in June 2020. When so many elementary mistakes are made and so many risks are taken, this is exactly what can happen! It's a demonstrative example of an unprofessional action: 1) Where is the life jacket? 2) No backpack on the shoulders. Use a rope to have the backpack lifted by the deck crew. 3) Where is the rest of the crew (on vessel / on the small boat) for safe assistance? What other mistakes have you discovered? We do not put videos...

Here’s a nice video of the ‘Independent Vision’ having her pilot embarked offshore by the Cork pilot boat ‘Failte’ an Interceptor 48 before she enters Cork Harbour. We also undertook some alongside handling trials at the same time with ‘San Cibrao’ before she is shipped to Spain. Sure was interesting trying to land the drone back on the boat in the 40kt winds offshore!

Good news for pilot safety: As one of the leading shipping companies, MAERSK is now targeting the notorious "trapdoor arrangements". A corresponding notification to all the company's ships concerned was made public in the last few days.