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.

The Winter Edition of "The Mastes, Mates & Pilot" by the International Organization of Masters, Mates & Pilots (MM&P) has been released.

Footage of deep tanker Felicity navigating through the treacherous waters of the Port Philip Heads channel entrance.

Training video VI on the correct use of the pilot ladder

The Bollard Pull value, which can be interpreted as the maximum thrust that is developed for a specific amount of time by the propulsion systems of any vessel to the fullest , when it has zero speed in the forward direction, is the criterion that allows us to understand how suitable a tugboat is for a port maneuver or a towing operation.

Using pictures and sketches, this video finally explains the difference between gross tonnage (GRT) and net tonnage (NRT); the ship spaces that are included/excluded in their calculation; and the importance of these terms to ship owners.
Contents of this video will benefit mariners preparing for exams (written and oral examinations).

The PDF of the second issue is available for download here

• Ship name : ELKA ASTIR • L.O.A : 189 m • Max draught : 11 m • Deadweight: 49990 t • Name of Pilot : Haitham Alzahrani - Saudi Arabia