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.

To monitor the vessel’s progress, the pilot had set up his portable pilotage unit (PPU). He had connected the rate-of-turn generator to the vessel’s pilot plug and had set a variable range marker on the radar with a radius of 0.5 nm.

This video complements the earlier demonstration of wind effect on straight track and shows now wind effect on turning circles. It can be seen that during a turn under strong wind the ship reduces turning when it comes close to equilibrium on straight track - if the Wind-to-ship speed ratio is big enough then the ship even goes straight instead of turning. This is shown for three samples for Head, Stern wind and Beam wind. The turning can be increased if the ratio of Wind speed-to-ship...

Thanks to Jacqui Kenyon, Chevi King and Kate Delisky for joining Jeanine Drummond on this webinar to discuss their careers and pathways into marine pilotage. The audience was a great mix of experienced marine pilots and newer maritime industry participants, as well as school aged children, with people joining us from Australia and overseas. It was an opportunity to create greater awareness of the maritime industry, and the important role marine pilotage plays in protecting our port...

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

Footage of deep tanker Felicity navigating through the treacherous waters of the Port Philip Heads channel entrance.

Safehaven Marine of Ireland will soon deliver a new pilot boat to Williams Shipping based in Southampton, UK.

State regulators on Friday banned cargo ship pilots from using personal cellphones on Maryland waters. The Maryland Board of Pilots, which oversees cargo ship pilots, approved a rule change 10 months after, and in direct response to, the Ever Forward's weekslong grounding in the Chesapeake Bay. Instead of leading the team on the bridge of the Ever Forward, the pilot was on his phone for an hour, texting, sending emails and taking screenshots before running aground and getting stuck for 45...