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.

In fact, the pivot point that we “see” is a trick of the eye, it looks like the ship is rotating about this point but in fact it is elsewhere, a point that you cannot see.

This guidance is intended to remind seafarers and companies of the vital importance of adhering to the rules and established procedures concerning the provision of safe boarding arrangements for pilots.

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

Version from 1st May 2021: Ships that require the services of a pilot need to ensure that the Pilot Transfer Arrangements (PTA) they provide are in compliance with the requirements prescribed under SOLAS V/23 and IMO Resolution A.1045(27) [as amended by IMO Resolution A.1108(29)].

Pilotage is being able to navigate safely into and out of a harbour/anchorage/port knowing where you are at all times, where your hazards are and a safe route in/out. This is particularly useful if you are heading into somewhere new or a challenging/busy area – or both!

IMO: - Name: KOBE Vessel Type - Generic: Pilot Vessel Vessel Type - Detailed: Pilot Vessel Status: Active MMSI: 431004316 Call Sign: - Flag: Japan [JP] Gross Tonnage: - Summer DWT: - Length Overall x Breadth Extreme: 19 x 4 m Year Built: - Home Port: - https://www.marinetraffic.com/en/ais/details/ships/shipid:661819/mmsi:431004316/imo:0/vessel:KOBE

Pilot cutters are used to take pilots between the three pilot stations (at Gravesend, Harwich and Ramsgate) and ships entering or leaving the Port of London.
Three dedicated pilot cutters Patrol, Guide and our hybrid Leader are based at Gravesend. The six cutters used at Ramsgate are operated by a Estuary Services Limited, which is jointly owned by the PLA and Medway Ports Ltd.