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

Article What is a SWASH pilot boat? What's the difference to the SWATH technology?

by Marine-Pilots.com - published on 5 June 2020

At the A&R shipyard in Germany, the successful principle of SWATH boats was further developed in 2013: The SWASH principle allows sea-going, smaller and more economical boats.

0

Article What is a pilot boat?

published on 9 January 2023

A pilot boat is a specialized vessel that is used to transport pilots to and from ships that are entering or leaving port. Pilot boats are typically small, fast vessels that are designed to operate in a variety of weather conditions and sea states.

0

Video Chart Projections and Chart Accuracy - ECDIS

published on 11 July 2020

With the increasing accuracy and reliability of navigational receivers, this part of the video module will try to establish a better understanding of the mathematical definition of the Earth’s surface and mapping of this curved shape onto a plane surface. Chart Projections and Chart Accuracy https://youtu.be/kOaWimnAN-U Principle Used For Creating Electronic Charts https://youtu.be/xY_MBubhUFs Display of Electronic Charts https://youtu.be/qnoFO0T-cLo Route Planning With ECDIS https://...

0

Video Ship Bridge VR Simulator

published on 6 July 2021

A look into the future of the ship's bridge with new technologies.

1

Article Education And Training Of Pilots In The Netherlands

by Eline van der Vlist-Lammers (Coordinator education and training for STODEL) and Ed Verbeek (Master Mariner) - published on 30 September 2022

Article originally published in SWZ|Maritime September 2022

Through the years, the Dutch Pilots have developed a system of selection, initial education and continual professional training. What is the current state of affairs?

3

Video Pilots gets off Huron Belle Pilot boat and climbs aboard CSL Assiniboine - 08.04.19

published on 25 February 2020

"This is a Lakes Pilot hopping off the Huron Belle Pilot boat after we've pulled alongside the CSL Assiniboine on the Detroit River just above the Ambassador Bridge in Detroit, MI
He walks along the side of the Pilot boat, holding onto the railing and then after the gangway from the ship is lowered into position, he steps up and pulls himself up to then begin walking up the gangway to the deck where he is greeted by the crew.
We then see one of the crew from the Pilot boat tieing up the...

0

Video 19 Meter FRP Pilot Boat | Patrol & VIP Boats | Delivered Fleet

published on 24 March 2026

Successfully delivered 19M FRP Pilot, Patrol, and Security Boat - built for performance, durability, and operational reliability.
The vessel River Pearl-39 is Owned by Knowledge Marine and Engineering Works (KMEW), fully operational with Mumbai Port Trust.
These vessels are designed to meet the rigorous demands of pilotage, coastal security, and marine operations with easy of handling and low maintainence.

0