Video

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


published on 26 November 2021 259 -

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 A Global Perspective | Maritime SheEO Conference 2021

published on 22 December 2021

What has the current experiences and developments in Maritime Pilotage Training been like? This session takes a global perspective at the conference. At the panel are: 🌊 John Barker, Senior Marine Pilot, Port of Auckland (New Zealand) 🌊 Captain Hanna Odengrund, Marine Pilot, Sweden Maritime Administration 🌊 Nurul Arrienne, Marine Pilot, Port of Tanjung, Malaysia 🌊 Fatouma Ali Ahmed, First Female Marine Pilot, Port of Djibouti 🌊 Reshma Nilofer, First Female Marine Pilot (India) 🌊...

0

Video Hugues Cauvier: Understanding the ship's pivot point (complete video)

by Capt. Hugues Cauvier - published on 3 September 2024

This video has been recut and edited by the creator Hugues Cauvier. Previously there were three episodes, which have now been combined into one.

1

Video IMPA Seminar on Maritime Pilots and Pilotage

published on 10 November 2022

The Seminar aims to inform Member States, intergovernmental organizations and non-governmental organizations in consultative status with IMO about the societal value of maritime pilots and pilotage as a public service. The IMO Secretary-General has recognised maritime pilots as having always been vital to ensuring the safety of navigation in key ports and shipping lanes globally and playing a crucial role in sustaining the global supply chain using specialized knowledge and expertise....

1

Video Why Do Ships Have Rope Ladders?

published on 4 February 2024

From "Casual Navigation": In this video, we investigate the Pilot Ladder. It is a crucial piece of equipment, used for embarking and disembarking a harbor pilot at sea.(contains advertising)

0

Video OMC International - DUKC® Explained

published on 14 October 2019

A in-depth video explaining how DUKC® works.

0

Article Pilot Embarkation platforms

by Kevin Vallance deep sea pilot and author - published on 17 December 2019

During the transit time on the pilot launch between the shore and the vessel, marine pilots will spend at least a portion of that time carrying out (either consciously or subconsciously) a risk assessment of the forthcoming operation.

1

Article Pilot Boat "Tampa": Repowering After 19 Years of Continuous Service

published on 18 October 2022

The Tampa Bay pilot association has returned its first Chesapeake Class pilot boat to Gladding-Hearn Shipbuilding. Tampa was built in 2003 when the shipyard introduced the class of mid-size, high-speed launches.

1