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.

Another good explaining video from Knud Benedict, ISSIMS

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!

Serkan Kahraman and Yusuf Zorba have published a new book for marine pilots. In this book, maritime pilots and shipmasters’ situational awareness levels have been analyzed using a bridge simulator system and the results have been obtained.

Online survey among maritime pilots in Germany: job-related stress and strain and the effects on their work ability.

Training video VI on the correct use of the pilot ladder

We’re doing another day of testing with the self-propelled scale model of T-2000. Obviously the conditions here do comprehensively exceed the designs operational envelope, as in scale proportion to the model, the waves must be I guess around 10-20 metres in size. However it’s interesting to understand the designs ultimate limits. The model is built to a scale of fourteen to one, and this equals 20 metres in real life size. Later, by slowing down the video, so that it matches the speed of...

Southampton, Hampshire. L/S of the ships and boats in a busy harbour. C/U shot of a nice looking old ship. Camera pans to a couple of little ships - tugs. M/S of one of the tugs "Flying Kestrel" with its Captain Collingwood observing. M/S of "Queen Elizabeth" - the largest passenger liner in the world. "Seven tugs go into action when "Queen Elizabeth" leaves Southampton" - tells a voiceover. M/S of Captain Collingwood giving instructions on the bridge of "Flying Kestrel". M/S of the tug...