Video

Yaw Stability of Ships - Basic Principles by Knud Benedict


published on 18 November 2021 351 -

Found on YouTube. Created by "ISSIMS - Innovative Ship Simulation". Originally published on 2021-08-29.
Yaw Stability is an important element of Ships Manoeuvrability - both for course keeping and turning ability. This first video in a series explains the Basic Principles of stability in steady state equilibrium conditions and the forces / moments involved. The role of the unstable moment due to drift angel and the stabilising damping moment due to rate of turn in the yawing motion will be discussed. Definitions of yaw stability during turning motion and on straight motion will be given. Samples of stable and unstable ship behaviour will be shown by Fast Time Simulation using the SAMMON Planning tool.
The next videos will demonstrate manoeuvres (e.g. Spiral Test, Pull-out Test and Zig-Zag Test) to identify and discuss the stability condition for ships and the different aspects contributing to yaw stability.

Join the conversation...

Login or register to write comments and join the discussion!
FL
Francesco Lo Nostro Italy
on 18 January 2022, 00:07 UTC

Nice explanation on turning and yaw stability. I think it’s important to consider all forces involved to the Pivot point and point of application of external disturbance, which changes according incidence of heading.
0

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 What Happened To The Napoli?

published on 22 October 2021

In this video, you can take a look at what happened when the Napoli broke her back and was run aground on the south coast of the UK.

0

Video Virtual Reality Marine Pilot Transfer Training Demo

published on 4 July 2020

Short demonstration highlighting key features of the VR Marine Pilot training simulation LWA Solutions have delivered for the Ports of Auckland.
Editors Note (4th July 2020):
This video shows the fantastic possibilities of virtual reality technology. Wonderful demo by Ports of Auckland. In respect for doing this amazing experiment. If somebody knows more about this or other interesting similar projects please leave a comment below and help us to complete information about virtual reality...

0

Video The difference between Gross Tonnage and Net Tonnage

published on 14 July 2020

Using pictures and sketches, this video finally explains the difference between gross tonnage (GRT) and net tonnage (NRT); the ship spaces that are included/excluded in their calculation; and the importance of these terms to ship owners.
Contents of this video will benefit mariners preparing for exams (written and oral examinations).

0

Article Study: Managing the Attributes of Pilot Errors in the Process of Redevelopment of Marine Pilot Reliability Index MPRI)

published on 28 June 2022

Managing the Attributes of Pilot Errors in the Process of Redevelopment of Marine Pilot Reliability Index MPRI): A Systematic Literature Review

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

Video Virtual Reality Beleving - Beloodsing

published on 23 November 2020

Vlaanderen is één van de drukste scheepvaartregio’s ter wereld. Loodsen assisteren schepen bij het aanlopen en verlaten van de havens in Vlaanderen. De bemanning van Vloot zorgt ervoor dat de loodsen aan en van boord geraken van de te beloodsen schepen. Op zee maken ze hiervoor gebruik van de Wandelaar, een SWATH en een jol.

0

Video North Sea Pilot Boat in choppy Seas

published on 24 November 2025

Early morning in the North Sea, three-metre swells, freezing winds, and a burst of hail hammering the deck - perfect conditions for another day with the Port of Tyne pilotage.
In this video we take two pilots out to the Aquamarine Ace onboard the pilot boat Collingwood, pushing through seriously choppy water on a bitter, stormy morning. You’ll see the full run out to sea, the swell hitting the bow, the hailstorm rolling in, and the precision teamwork that gets the pilots safely across in...

0