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 Presenting OpenBridge Design System at DSD2020 in Oslo

published on 6 May 2020

I recently presented the OpenBridge design system at the Design System Day 2020 in Oslo. I talked about what OpenBridge is, how it differs from other design systems and where we are heading.
The conference was moved online due to the Corona virus, so I had to record the presentation using my mobile phone, and get Jon Olav from the lab to add the slides. So - apologize for the home quality of the presentation, but I hope you enjoy learning more about our work!
Since we launched the free...

Opinion The 2023 review of Pilot Transfer Arrangement Regulations, a chance for innovation?

by Herman Broers - published on 2 January 2023

In the spring of 2023, the IMO Sub-commission on Navigation, Communications and Search and Rescue (NCSR) may start a process of review and amendments to the SOLAS Ch V. reg 23

Article Kongsberg Digital to provide the Panama Canal Authority with simulators for multi-vessel training scenarios

published on 16 April 2021

Kongsberg Digital has signed a contract with the Panama Canal Authority (ACP) to upgrade and extend the K-Sim Navigation simulators based in SIDMAR; the Center for Simulation, Research and Maritime Development of the Panama Canal Authority.

Video Risk Involved When Unmooring Operation on Deck

published on 10 August 2020

Risk Involved When Unmooring Operation on Deck

Video Australian Capital Territory Section Technical Meeting

published on 14 January 2022

Australian Capital Territory Section Technical Meeting
November 2021, online via Zoom

Article Amended Hong Kong-Shenzhen pilot rules

published on 7 June 2022

To boost efficiency of Yantian ship arrivals. The amendments represents the first time pilots from Hong Kong and Shenzhen have been allowed to navigate in the other’s respective waters, eliminating the need for a mid-ocean transfer of personnel.

Video Pilot boarding at sea

published on 2 May 2021

Ever wonder how Pilots board a massive container ship at sea? Well, like this!
This is done year round in every major Port around the world, in all types of weather.