Video

Spiral-Test -Manoeuvre for detailed identification of Yaw Stability using Samples of Cruise Ship


published on 29 September 2021 92 -

Found on YouTube. Created by "ISSIMS - Innovative Ship Simulation". Originally published on 2021-09-01.
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. Finally, a discussion of of ship’s hull form with loading conditions and elements like appendages completes the overview on effects of Yawing stability.
The next videos to follow will demonstrate other manoeuvres (e.g. Pull-out Test and Zig-Zag Test) which are also helpful to identify and discuss the stability condition for ships and the different aspects contributing to yaw stability.
What's your opinion on this?
Login or register to write comments and join the discussion!
Read more...

Video How Ship Anchor Works? - Procedure For Anchoring a Ship at Sea

published on 11 July 2020

#Anchor #shipanchor #windlass Anchoring is one of the very frequent operations onboard ships. A number of variables and external factors influence the duration and location of an anchoring operation. While the type of seabed is of utmost importance during anchoring, soft muddy grounds or clay bottoms are best preferred. It should be taken care that the anchoring bottom is free of power lines, submarine cables, pipelines or rocks. Various methods on anchoring include consideration of...

1

Video How port pilot sail out ship from the port? Grimaldi lines catania roro ship

published on 22 April 2022

In this video I will show you Grimaldi Lines Catania RoRo Ship

0

Article The challenges of remote pilotage simulated in Rauma

published on 7 October 2021

As a part of the ISTLAB project the impact of external factors on pilots’ activities in a remote pilotage situation has been examined in Rauma.

1

Article Psychophysical stress and strain of maritime pilots in Germany. A cross-sectional study

published on 12 June 2021

Maritime pilots work in an irregular deployment system (rotation system) with unpredictable work assignments under high levels of physical and mental stress. Fatigue or chronic diseases, e.g. coronary heart disease, peptic ulcers or gastritis can occur as a consequence.

4

Article Investigation of ship maneuvering with hydrodynamic effects between ship and bank

by Marine-Pilots.com - published on 12 July 2021

When a vessel navigates in confined waters, such as in a harbour or narrow channel, it is well known among experienced pilots that the ship handling is greatly affected by the hydrodynamic forces and moments acting between ship and bank or sidewall of the channel.

1

Video Wind Balance on straight track with theory

published on 24 November 2020

Wind Balance on straight track - using SAMMON to learn the theory and the effect of rudder and drift to reach the balance in steady state equilibrium conditions on straight track. Limits of steerability will be shown and how turn under strong wind.

1

Article Predicting Maritime Pilot Selection with Personality Traits

by Marine-Pilots.com - published on 7 July 2021

The purpose of this quantitative, ex post facto study was to assess P-J fit theory by examining the relationship between personality traits, as measured by Jackson’s (1984) PRF-E, and selection for a maritime pilot job.

0

Video The Vital Link to Victoria: Inside Port Phillip Sea Pilots

published on 27 February 2026

Port Phillip Sea Pilots are the vital link between Victoria and the world. Ports Australia spent the day with CEO Thorsten Werges at their pilot station in Queenscliff to get a glimpse into the 185-year-old organisation focusing on safety and sustainability.

0

Video Port Dampier Marine Pilot Boarding Ship via Helicopter - Animation

published on 8 July 2024

Experience the thrilling moment when a Port Dampier Marine Pilot boards a ship via helicopter! Get a bird's eye view of this stunning animation capturing the precision and skill involved in this critical maritime operation. Perfect for maritime enthusiasts, professionals, and anyone fascinated by sea adventures. Don’t forget to like, subscribe, and hit the bell icon for more maritime insights! Links to Social Media: YouTube: www.youtube.com/@elementtree2287 LinkedIn: https://www.linkedin....

0