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

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 OMC International - Suezmax Tanker - Case Study

published on 14 October 2019

Case Study: An investigation into whether Port of Melbourne and major port user, ExxonMobil, could bring deeper drafted vessels into the channel.

Video Why Can't Ships Reverse Around Corners?

published on 20 September 2024

This video explores the question of why ships are so difficult to manoeuvre in reverse.

Video Understanding Plimsoll Line

published on 17 February 2020

Maritime Education

Article GPS (Part 1) - Structure, mode of operation, technical and physical fundamentals of GPS

by Capt. Gunter Schütze, Thailand/Germany - published on 30 January 2020

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.

Article 4th Customer Day at NAUTITEC: A Day Full Of Inspirational Speeches And Lectures With The Opportunity To Network

published on 9 June 2022

More than 90 guests from the european maritime cluster attended the 4th NAUTITEC Customer Day in Leer on 2nd June 2022, which was hosted by NAUTITEC and supported by the partners of the maritime campus, Faculty of maritime science Sciences Emden/Leer.

Article Marine Pilots Events

by Frank Diegel - published on 5 July 2021

The list of physical pilot events is very clear in times of Corona. Nevertheless, it can be viewed at www.Marine-Pilots.com/events. Does anyone have more information about events?