Video

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


published on 26 November 2021 175 -

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.
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

Video Discussing video: Pilot Transfer to Ship by Helicopter

published on 3 June 2020

Let us see how a maritime pilot is transferred by helicopter to a ship. In this video, we discuss briefly some procedures in a helicopter/ship operation for the transfer of pilots.

0

Video SAMMON Demo Planning FtLauderdale Arrival with comments

published on 20 January 2021

This updated video shows how easy it is to develop an arrival plan with the SAMMON Planning Tool. As a sample the arrival from appraoch until the berth to Ft. Lauderdale is used under strong current of 2kn. At the simulator training courses where we used this tool for preparation of a manoeuvring plan during the briefing sessions all nautical officers involved stated afterwards: "Why don't we have this tool on our ships?"

0

Video How does GPS work?

published on 4 July 2019

by Casual Navigation

0

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).

0

Video OMC International - DUKC® Explained

published on 14 October 2019

A in-depth video explaining how DUKC® works.

0

Video Bulker leaving Indira Docks, India

published on 30 May 2022

Video by Capt Amit Kumar Singh, Marine Pilot / Port Captain

0

Article Publication of the Brazilian Pilots' Association - Rumos Práticos 59

published on 20 October 2021

Publication of the Brazilian Maritime Pilots' Association - Rumos Práticos 59
In this edition of Rumos Práticos, we made a concerted effort to address safety, both in pilot embarkation/disembarkation and in port projects.

0