How GPS works? Trilateration explained

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.

Another very good explanatory video by Knud Benedict. Absolutely worth seeing.
Yaw Stability is an important element of Ships Manoeuvrability - both for course keeping and turning ability. This first video in a series explains the Basic Principles of stability in steady state equilibrium conditions and the forces / moments involved

When publishing articles or pictures about pilots and their pilot ladders, very often we see the use of backpacks. The use of backpacks is controversial, since its weight, or buoyancy, can influence the functioning of the lifejacket used.

SWATH@A&R – AN IDEA ON THE RISE
Visit company profile: Abeking & Rasmussen
For thousands of years ships have been firmly anchored in human identity. They have benefited and advanced the human kind in countless ways. And yet all along this amazing journey seafarers have been plagued by seasickness, an incessant and relentless nausea caused by the ship’s rolling and rocking. Many experts have tried to find the remedy for the persistent ailment, but always with moderate success.
That is,...

It is not often that this blog is used to show bad practice, however in this case some pictures tell a whole story. Ship is compliant by design for rigging a combination. How about the operator(s)?

What is voyage planning, Who is responsible, how do we comply with the rules and how do we utilize the features and functions available in an ECDIS? Chart Projections and Chart Accuracy https://youtu.be/kOaWimnAN-U Principle Used For Creating Electronic Charts https://youtu.be/xY_MBubhUFs Display of Electronic Charts https://youtu.be/qnoFO0T-cLo Route Planning With ECDIS https://youtu.be/s5ebZQru7mg Sailing With ECDIS https://youtu.be/GZrmzE24K44 Whats is Electronic Chart Display? https://...

Perseus pilot boat catamaran, Port of Rotterdam IMO number 9367114 MMSI 246390000 Name of the ship PERSEUS Former names PKLL2 EAZ (2017, Netherlands) PERSEUS (2013, Netherlands) PEQ (2013, Netherlands) ZAGD A (2012, Netherlands) Vessel type Pilot boat Operating status Active Flag Netherlands Gross tonnage 228 tons Deadweight 14 tons Length 25 m Breadth 13 m Year of build 2006 Builder ABEKING & RASMUSSEN - LEMWERDER, GERMANY Classification society GERMANISCHER LLOYD Description PERSEUS is a...

Safehaven Marine have delivered one our Interceptor 48 pilot vessels to the San Juan Bay Pilots, Puerto Rico.
This marks Safehaven Marines 41st pilot boat delivered to portsWorldwide. ‘Harbor Thunder’ a very striking
design, she is powered by a pair of Cummins QSM11 engines at a heavy duty rating of 450hp, allowing the
vessel an economical continuous operational speed of 22-23kts.