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 Ns345 W6D2 Ship Interactions and Bank Effects

published on 13 October 2020

Shiphandling discussion about meeting and overtaking situations in a close quarters situation where hydrodynamic effects will come into play between ships. The lecture continues and discusses Bank Effect.

Video Nautik-Training auf der simulierten Brücke

published on 28 October 2020

Bremen, 24.10.14: How to navigate a ship properly? How do you enter which port? Future captains, but also experienced pilots train in the "Ship Handling Simulator" at Bremen University of Applied Sciences.

Video How AIS Works - Operation of AIS

published on 30 June 2020

This section should give a short introduction to: Operational aspects of AIS Functions and features Human aspects Key Points The AIS transponder unit. Automatic communication. SOLAS requirements. AIS Information sent by ships. Static information update. MMSI Dynamic information update. Voyage related information update. Checking AIS data. BIIT Display Of AIS data. Recommended AIS symbols. Sleeping target symbol. Activated target symbol. Selected target symbol. Dangerous target...

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 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 New York Maneuver

published on 13 January 2023

10 Jan 2023
New York Maneuver

Video The Fremantle Pilots

published on 5 February 2025

Knot your average day job.
Video contributors: AAL shipping, WA Maritime museum, Fremantle Ports.
Fremantle Pilots respectfully acknowledges the profound connection that exists between the land, waterways, and the traditional lands of the Whadjuk people. We pay our deepest respects to the Whadjuk people, the original custodians of the expansive Walyalup region, and recognize the enduring significance of their cultural heritage and beliefs in shaping the present and future of the Whadjuk...