Video

Pull-Out-Test-Manoeuvre for fast Identification of Yaw Stability – and Lyster-Diagram


published on 14 January 2022 156 -

Found on YouTube. Created by "ISSIMS - Innovative Ship Simulation". Originally published on 2021-09-28.
This video shows an introduction on the Pull-out Test-Manoeuvre and describes the procedure how to steer through this simple manoeuvre: Turning circle and then put the rudder amidships. The final rate of turn allows to identify stable and unstable conditions. Samples of stable and unstable ships will be shown by Fast Time Simulation using the SAMMON Planning tool. The role of the rudder angle of neutral effect are explained together with a comparison of Spiral test and Pull-out manoeuvres – and also for the so called “Lystergram”. The difference in stability for ahead and astern motion is demonstrated for a tanker in ballast condition.
Finally, a funny discussion of my experience in a rowing boat with my family will boost your imagination and completes the overview on effects of Yawing stability.
The next videos to follow will demonstrate other manoeuvres (Zig-Zag Test) which are also helpful to identify and discuss the yaw stability for ships.
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 Knud Benedict Presentation on “Digital Twins” at IMLA SMU Seminar

published on 28 October 2020

This is the recording of the presentation with the title:
“Digital Twins" as Key Maritime Technology Innovations for MET - and for Operation of Intelligent Ships
It was held at the MET Training Course by Shanghai Maritime University on Oct 27 2020 on the occasion of IMLA 40th anniversary

0

Article Origins of the IMPA pilot mark

by Kevin Vallance deep sea pilot and author - published on 24 October 2019

There are many things in both our everyday and professional lives which we take for granted and never question the origins of, an example of this might be the IMPA recommended ‘pilot mark or pilot line’, which is sometimes seen on the side of vessels indicating where a vessels freeboard exceeds 9 metres.

4

Article Winter Edition of "The Master, Mates & Pilot" available

published on 22 December 2021

The Winter Edition of "The Mastes, Mates & Pilot" by the International Organization of Masters, Mates & Pilots (MM&P) has been released.

0

Article Man Overboard Training - Loodswezen Amsterdam-Ijmond

published on 20 May 2021

The man-overboard manoeuvre includes all measures to rescue a person who has fallen overboard from a watercraft.

0

Video OMC International - DUKC® Explained

published on 14 October 2019

A in-depth video explaining how DUKC® works.

0

Video PilotTracker Case Study the Greater Houston Port Bureau - GHPB

published on 4 November 2022

The Port of Houston has been implementing Pilot Tracker, to improve efficiency and decision-making processes through data sharing.
According to Christine Schlenker, VP of the Greater Houston Bureau, “ Pilot Tracker is a good first step for port digitalisation, because it’s easy to implement and it has a strong, immediate impact for the port community”.
Want to know more about Pilot Tracker? Visit the link below and get in touch with one of our team members!
https://port-xchange.com/...

0

Video Deep draft tanker to sea

published on 1 October 2020

It does not happen very often that we have a Eurochannel bound ship to sea. In this case the MARIA P LEMOS, 333 m with a draft of 20,7 m left Rotterdam underway to the Far East .

0