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.
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.
Video upload on 02/01/2020 by TVBS NEWS
We do not put videos of accidents on our website out of voyeurism. We would like to point out that the work of a pilot is always dangerous, especially when embarking and disembarking!
These incidents should be a warning. It can hit anyone out of carelessness.
Dear pilots, please always be mindful and always think of your safety!