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 difference between Gross Tonnage and Net Tonnage

published on 14 July 2020

Using pictures and sketches, this video finally explains the difference between gross tonnage (GRT) and net tonnage (NRT); the ship spaces that are included/excluded in their calculation; and the importance of these terms to ship owners.
Contents of this video will benefit mariners preparing for exams (written and oral examinations).

Video Interaction Bank Effect

published on 30 June 2022

Educational and descriptive video

Video GoPro Sticker Tips: Time-lapse vessel videos with telemetry data widgets

by River Pilot Kris De Decker - published on 29 September 2021

Tips by Captain Kris.
kris@mes.de
krisdedecker

Video MAN ME-C and MAN ME-B Online Training

published on 23 April 2021

We have successfully implemented and tested our new online engine simulator trainings. Currently we offer four online trainings. - MAN Engines Operation and Analysis (ME) - MAN ME Engine Electrical Course - MAN ME-B Engine Operation and Analysis - MAN ME-B Engine Electrical Course Find more information and current schedules on https://mtc.hamburg/training Music: Better Day by BatchBug | https://soundcloud.com/batchbug Music promoted by https://www.free-stock-music.com Creative Commons...

Video Characteristic Diagrams for ship behaviour under Wind Impact

published on 12 April 2021

This movie shows how to create the Characteristic Diagram for Wind effect on ships and limits of steerability under strong wind. It uses the previous demos made with the SAMMON Planning Software on turning tendency of ships on straight track and in turning motion.

Video Aberdeen Harbour Board - Pilot

published on 7 February 2020

It takes all sorts of roles to ensure safe and successful operations at Aberdeen Harbour. Meet Finn, a Marine Pilot, and find out why he enjoys working at the port.

Video Magnet Holder - Gangway/Pilot Ladder Fixing Equ. (from Korea Ocean Tech)

published on 4 July 2019

SOLAS/IMO/IMPA Regulations require additional safety measurements for pilot's boarding and disembarkation since recently. These magnetic holders of two types, one is manually set and the other is a remotely controlled one, fixes both pilot ladder and accommodation ladder (gangway) strongly onto the hull of the ship. Thus, the pilot can climb more safely. We are negotiating with ISO, IMO, IMPA etc in order to standardize these items for pilot safety.