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.

This video shows an introduction on the Pull-out Test-Manoeuvre and describes the procedure how to steer through this simple manoeuvre: Turning circle and then put the rudder amidships. The final rate of turn allows to identify stable and unstable conditions.

In this movie the efficiency of two different pod operation strategies is compared: With azimuth propeller ships the Pods can be used in two ways to control the speed, e.g. for speed reduction: 1. by adjusting the engine orders, e.g. by reducing the RPMs to get lower speed - this means to drive the ship in the same conventional way as for twin screw vessels, 2. by turning both pods either in- or outward (TOE-IN or TOE-OUT) to reduce the forward thrust and therefore reducing the speed – the...

A 1,000 Navy Vessels around... Quite often those vessels have the tendency of presenting themselves with a pilot transfer arrangement which is non-compliant.

Many people wonder how ships made it across entire oceans without getting lost in the seventeenth century. Aaron introduces seventeenth century navigation to us today by beginning with piloting.

Bremen, 24.10.14: How to navigate a ship properly? How do you enter which port? Future captains, but also experienced pilots train in the "Ship Handling Simulator" at Bremen University of Applied Sciences.

The hazards of Pilot boarding
Throughout 2016, the International Maritime Pilots’ Association (IMPA) held a safety campaign focused upon the standard of pilot ladders and associated equipment. CHIRP supported this campaign and received many reports on the subject.
This first report describes issues concerning pilot access near
the non-parallel ends of a ship, and use of a retractable platform.