How does GPS work?

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.

New guidance for PBAs with trapdoors. Released 4.11.2020 at NZMPA Conference in Dunedin, NZ. Distinct difference to suggestions in many other countries, is that we challenge operators who have the ladder suspended from the accommodation ladder (gangway) and not secured to the ship. SOLAS states that pilot ladder shall be secured to the ship, and securing strongpoints, shackles and ropes shall be as strong as the sideropes.

At Humber Maritime College we have state-of-the-art marine simulators to teach our Merchant Navy cadets in an environment close to reality, preparing them for a career at sea.

Tom Mellor - C​hairman of the IHO Electronic Navigational Chart Working Group (ENC WG) and Head of Digital Standards at the UKHO - explains what the IHO's ECDIS and ENC Standards mean.

Tips by Captain Kris.
kris@mes.de
krisdedecker

Footage showing what the simulators look like and how they can be used to simulate ship movement in various ports.

Editors note: A film of a pilot boat has just been published on YouTube with the title "How Dangerous being in a Pilot Boat..." on YouTube. I'm not sure if this really shows a dangerous maneuver, maybe the experts can comment on it here.
But in principle it is problematic to approach the ship in such a small Pilot Boat in the wake from astern and cross the waves there. I remember an accident from Finland in December 2017 where the boat capsized and people died. Is this situation shown here...

We’re doing another day of testing with the self-propelled scale model of T-2000. Obviously the conditions here do comprehensively exceed the designs operational envelope, as in scale proportion to the model, the waves must be I guess around 10-20 metres in size. However it’s interesting to understand the designs ultimate limits. The model is built to a scale of fourteen to one, and this equals 20 metres in real life size. Later, by slowing down the video, so that it matches the speed of...