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 SImulator Training

published on 2 February 2022

Practicing in the new port before we have todo it for real.

Opinion New guidance for PBAs with trapdoors. Released 4.11.2020 by NZMPA

by New Zealand Maritime Pilot's Association - published on 6 November 2020

New guidance for PBAs with trapdoors. Released 4.11.2020 at NZMPA Conference in Dunedin, NZ. Distinct difference to suggestions in many other countries, is that we challenge operators who have the ladder suspended from the accommodation ladder (gangway) and not secured to the ship. SOLAS states that pilot ladder shall be secured to the ship, and securing strongpoints, shackles and ropes shall be as strong as the sideropes.

Video Smartship Australia

published on 25 February 2020

Footage showing what the simulators look like and how they can be used to simulate ship movement in various ports.

Article Pilots’ Pocket Guide and Checklist - Second Edition released

published on 19 January 2022

The British Tugowners Association (BTA) in collaboration with the UK Chamber of Shipping has launched its new Pilots’ Pocket Guide and Checklist.

Video Ship Handling In Restricted Waters: Bank Effects

published on 17 August 2020

Video Departure pier#44 June 2020 Constanta Port, Romania

published on 26 June 2020

Video by marine pilot ESIL ABIBULA.

Video Tees Pilot Boat Chase (UK)

published on 22 September 2025

Follow me on my drone journey always in 4K see what my drone sees from above # dronearielfootage
# drone video #dji drone #mini 3pro
Another boat chase, just me the Little Fella and the Tees Pilot Boat and a bucket load of Seagulls no editing, no transitions, no colour grading, whats not to like.