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.

How to get information for wind & current limits to be potentially encountered by thrusters – or current? - this will be described in this movie:
- Measure Drift speed, due to beam wind with no propulsion;
- Measure drift speed using full thrusters
- Estimate wind & current limits to be potentially encountered by thrusters – or current...
- Finally there is a simple formula as Rule of Thumb: the transverse drift speed is about 7-8% of wind speed!

Required tug power and number of tugs needed in variable conditions of wind, current and waves isin most cases an assessment made by pilots based on their professional experience. However, assessments will raise questions by lawyers if something goes wrong. They will use tools to calculate what really is needed with respect to tug power and number of tugs. They have furthermore the advantage of time.

Another video by Knud Benedict: This movie reveals some practical insight into regions of course stable / unstable conditions under wind. And I dare to say you can get some insight into other stability types and analogies, too!

Jones Act conversation on KKCR-FM, hosted by Felicia Cowden, with guests Colin Grabow, Ed Enos, Jonathan Helton and Mark Coleman

Information video: How to become a Marine Pilot.

Port authorities in Antwerp, Belgium, are making use of EMSA’s Remotely Piloted Aircraft System (RPAS) to support their day-to-day monitoring of port operations and rapid response to pollution incidents in the port area. The RPAS will enable the authorities to inspect at a distance their complex port environment which extends over an area of some 120km².

PILOT BOARDING in STEENBANK PILOT STATION NETHERLANDS
#netherlands #steenbank #pilotboat