This video shows an introduction on the Spiral-Test-Manoeuvre and describes the procedure how to steer through this manoeuvre and measure the data needed. The results will be displayed in a characteristic diagram allowing to identify stable and unstable conditions and related, detailed information, e.g. spiral loop width and height, rudder angle of neutral effect. Samples of stable and unstable ship behaviour demonstrations will be shown by Fast Time Simulation using the SAMMON Planning tool.
This my attempt to do just that. This is a summary of all scientific papers and articles that I could find about the ship’s pivot point. I have added links to any videos associated with the publications and have also included any useful diagrams or equations that the authors published to help explain their research.
What a great pleasure to meet these guys at the harbour - they could not have been more helpful and forthright about their work. At first glance, the glide of these orange powerboats up and down Belfast Lough seems an almost effortless task, but close up this is a very skilled trade and constant management of risk 24/7 in high and low seas, jumping from ship to boat to land taking safe control of the great volume of steel vessel coming in and out of this busy port. Though a hub of...
