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.

‘It certainly hurts – using the integrated lifting sling on a life jacket.’

A study of increasing competition in ports and the underlying pressure to improve port performance. This thesis is the final deliverable for the completion of the degree of Master of Science in Transport, Infrastructure and Logistics (TIL) at the faculty of Civil Engineering and Geo-sciences at the Delft University of Technology.

Maritime Education

On April 20, 2026, the Columbia River Bar Pilots conducted a MOB drill with the U.S. Coast Guard Station Astoria.

Pilot recruitment has traditionally been based on seniority, and extensive sea experience. However, a more modern approach, hiring younger, motivated candidates with structured training, offers an alternative path with compelling advantages.

Drydocking or undocking is always a difficult task, particularly with a “dead” vessel (no power/propulsion) and the wind blowing on the ship's side.

Safehaven Marine have signed contracts with the Faroe Islands Rescue Service for an Interceptor 48
‘self-righting’ S.A.R. (Search and Rescue craft.) This is the second S.A.R. Interceptor 48 we have
supplied to the Faroe Islands following ‘Sverri’ in 2013, which has worked very well in the
challenging North Atlantic seas they face off the Islands, with her crew being totally confident with
her seakeeping abilities, performance and reliability during rescue operations over the last 7 years.