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.

Cultura de Segurança e sistemas de PPU (Portable Pilot Unit) Gustavo Martins presidente do CONAPRA (2015-2019)
***Publicado em Fevereiro de 2020***

At the A&R shipyard in Germany, the successful principle of SWATH boats was further developed in 2013: The SWASH principle allows sea-going, smaller and more economical boats.

Two new locks were introduced in 2009 for training in the new Panama lock conditions with or without tug(s). This video shows the famous "piston effect" when entering the lock at an impressive speed of 10 knots with a high blockage factor.
Port Revel provides shiphandling training using manned models for maritime pilots, masters and officers: http://www.portrevel.com

RightShip continues its webinar series on pilot ladder arrangements. On September 18th, they´re asking two marine pilots to share their first-hand perspectives on pilot ladder arrangement best practices.

Here is the latest version of the professional handbuch of "pilot Ladder Safety" for the rigging and the use of pilot ladders by Herman Broers from July 2021.

Watch Orion, one of the two new boats of Jacobsen Pilot Service in Long Beach, Calif. in action. Designed by Tim Nolan Marine Design of Port Townsend, Wash., these boats with waterjet propulsion were built from composite materials at Nordlund Boat Company in Tacoma, Wash. Video courtesy of John Harris.

Sea transport has for many years been a reserve of men with few women getting the opportunity, especially in most African countries. But for Fatouma Ali Ahmed, women can equally steer ships just as men can do.