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 Electronic charts: S-100 Essential tool for marine pilots

published on 21 June 2021

Who knows the S-100 / S-102 electronic card standard? An introduction by the Maritime Simulation and Resource Centre, Canada

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.

Video Safety training course for German maritime pilots

published on 12 June 2026

"Although this should not happen, pilot ladders sometimes suddenly slip one step. Always grip the sideropes firmly and you can handle this!"

Video Port Dampier Marine Pilot Boarding Ship via Helicopter - Animation

published on 8 July 2024

Experience the thrilling moment when a Port Dampier Marine Pilot boards a ship via helicopter! Get a bird's eye view of this stunning animation capturing the precision and skill involved in this critical maritime operation. Perfect for maritime enthusiasts, professionals, and anyone fascinated by sea adventures. Don’t forget to like, subscribe, and hit the bell icon for more maritime insights! Links to Social Media: YouTube: www.youtube.com/@elementtree2287 LinkedIn: https://www.linkedin....

Article Pilots and VTS operators working together to improve maritime safety

published on 2 February 2022

The Norwegian Coastal Administration has signed an agreement with Aboa Mare to provide a new
course for pilots and VTS operators. By practising together in a simulator, maritime safety along the
Norwegian coast will be reinforced.

Article The Story of the #dangerousladders group on Facebook

by Arie Palmers - published on 21 January 2021

The “DangerousLadder” page on facebook is nowadays a very well known community in the maritime world. It is steadily growing towards 3000 members, which will be the next milestone membership-wise.

Video Pilot Boat HOLTENAU, Travemünde 2019-12-15

published on 17 March 2021

PILOT HOLTENAU (MMSI: 211533730) is a Pilot Vessel and is sailing under the flag of Germany.
Her length overall (LOA) is 17 meters and her width is 6 meters.