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.

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.

During a meeting on 4 December 2024, the International Hydrographic Organization Nautical
Information Provision Work Group (IHO NIPWG) held a vote on the new Guide for Nautical
Data 2.1. The guide was unanimously endorsed.

Following a surf riding and broaching incident and subsequent collision by an experienced vessel operator, QinetiQ have been undertaking extensive investigations into the risk mitigation and safety management of pilotage operations. This presentation looks to discuss the risks presented during pilotage services, and provide a critical review of vessel design and service delivery approaches to understand the potential risk mitigations and management of pilot boat safety.

This article was first published back in September 2021: Pilotage operations require close interaction between human and machines. This complex sociotechnical system is necessary to safely and efficiently maneuver a vessel in constrained waters.

A video largely shot by my 10, 8 and 4 year old grandchildren depicting an open day at Portsmouth (UK) Commecial Port open day. We look briefly around the port, visit a Challenger (5) sailing yacht, a Pilot boat and a small tanker. The video includes a trip out of Portsmouth Harbour on the Pilot Boat to pick up my Son (a Harbour Pilot) from the grain ship he was taking out of the port.

#PilotVessel "KOON"/ On board #BulkCarrierShip "PMS EDELWEISS" at anchor in #ZonaComún #Anchorage #pilots #pilotonboard #RioDeLaPlata #Argentina This video shows, the moment when the Pilot Vessel "KOON", finished with the Boarding Operations in #ZonaComún and She was proceding to #LaPlataHarbour . These images were taken on board the Vessel "PMS EDELWEISS" when she was at anchor awaiting high tide, in Zona Común Anchorage Area #RioDeLaPlata. Bulk Carrier Ship "PMS EDELWEISS" - IMO Number:...