Video

Zig-Zag-Test-Manoeuvre for Yaw Stability, IMO Manoeuvring Standards and Crash Stop

published on 26 November 2021 - 259 -

Show comment section |

Found on YouTube. Created by "ISSIMS - Innovative Ship Simulation". Originally published on 2021-11-25.

This video is now the last of the Yaw Stability series. It shows an introduction on the Zig-Zag-Test-Manoeuvre and describes the procedure how to steer through this periodic rudder manoeuvre, switching the rudder depending on the heading change. Some characteristic parameters are explained, specifically the overshoot angles following counter rudder are suitable to decide on stable and unstable conditions as part of the IMO Standards for ships manoeuvrability.
Samples of stable and unstable ship behaviour demonstrations will be shown by Fast Time Simulation using the SAMMON Planning and the SIMOPT tool. The results are discussed with respect to the IMO limit values. Finally, the effect of yaw stability on the tracks of Crash Stop Manoeuvres are discussed, demonstrating the impact of small turning rates when starting to reverse the engines.

ISSIMS GmbH
Innovative Ship Simulation And Maritime Systems

Education

What's your opinion on this?

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...

Video Critical Ship navigation done with perfection

published on 31 January 2022

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

Video The Physics of Golden Ray Capsize - Part 2 Mechanism and Solution

published on 5 June 2021

This video provides the detailed explanation of the phenomenon showed in Part 1 of this topic and a solution for this problem at the end. This phenomenon was recently disocovered by Dr. Steve Shaojie Tang and published in his book by Faiteve inc in 2018. The book info can be found at Faiteve inc https://www.faiteve.com/ The testimony of the captain on duty in the public hearing of Golden Ray capsizing at https://livestream.com/uscginvestigations/events/9252896/videos/211109207 in the time...

Article Book “Remote Pilotage” by Antti Rinkinen

published on 7 January 2022

Finland's first remote pilotage of a cargo ship will take place at the beginning of 2022. The first remote pilotage permits may be issued in 2025.

Video P21 pilots4 0

published on 26 February 2021

Video de presentación del proyecto Pilots4.0 para la iniciativa Ports4.0. Proyecto P21-Pilots4.0

Video Maritime Piloting in the 17th-Century

published on 25 June 2022

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.

Article Webinar: Pilot Ladder Arrangements: A Pilot's Perspective on Best Practices (18 Sept. 2023)

published on 29 August 2023

RightShip continues its webinar series on pilot ladder arrangements. On September 18th, they´re asking two marine pilots to share their first-hand perspectives on pilot ladder arrangement best practices.

Video IcePad Demonstration, MARSAT

published on 26 July 2019

IcePad Demonstration, MARSAT
a product driven by Drift + Noise and TRENZ GmbH, Germany

Article LYMAN-MORSE ANNOUNCES BALTIC WORKBOATS PARTNERSHIP

by Baltic Workboats AS - published on 15 December 2019

Since 1978 Lyman-Morse has built more than 110 vessels, ranging from aluminum workboats to high-end composite racing yachts and luxury power yachts. “Their experience with so many different building materials opens up a world of new possibilities for our vessels,” says Baltic Workboats’ CEO Margus Vanaselja.