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.

On 1st April 2022 Brazil Pilots - Praticagem do Brasil - will organize a webinar about dangerous ladder with speaker Arie Palmers.

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.

The role of a Tug Master undertaking harbour towage activities is a very specific one. He/she has to, alone or in cooperation with other Tug Masters, assist a ship in a safe and efficient way using his/her tug to the best of its qualities. 

This section should give a short introduction to: Operational aspects of AIS Functions and features Human aspects Key Points The AIS transponder unit. Automatic communication. SOLAS requirements. AIS Information sent by ships. Static information update. MMSI Dynamic information update. Voyage related information update. Checking AIS data. BIIT Display Of AIS data. Recommended AIS symbols. Sleeping target symbol. Activated target symbol. Selected target symbol. Dangerous target...

Wind Balance on straight track - using SAMMON to learn the theory and the effect of rudder and drift to reach the balance in steady state equilibrium conditions on straight track. Limits of steerability will be shown and how turn under strong wind.

Hefring Marine have announced a new partnership with Loodswezen, aiming to improve the safety and efficiency of the Dutch pilotage associations operations by installing the Intelligent Marine Assistance System (IMAS) on its latest pilot tenders.

Estuary Services crew Andrew Howland (coxswain) and Wayne Goldfinch (deckhand) transferring PLA pilot, Stephen Ford on an approx. eight-mile trip from Ramsgate to board the tanker Songa Breeze at the NE Goodwin pilot boarding ‘diamond’. Departing at 0955 on 20 April 2020, they steered an easterly course to reach the ship by 1030. Weather: wind North Easterly F6, sea state moderate to rough, visibility 10 nautical miles. Footage: ESL Edit: Theo Albanis, Port of London Authority Music:...