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

Article Report: Securing of pilot ladders at intermediate lengths – testing

by nc2 Engineering Consultancy - University of Southhampton - published on 28 July 2023

Report by nC2 Engineering Consultancy at the University of Southampton on behalf of the International Maritime Pilots' Association (IMPA) to investigate the effectiveness and impact of different methods of securing pilot ladders in medium lengths in a laboratory-based project.

0

Video CMMI Chennai Chapter |Technical Meeting | BRM During Pilotage

published on 27 July 2021

The Company of Master Mariners of India - Chennai Chapter, cordially invites you to a virtual meeting on "BRM During Pilotage" by Capt. Russell D'Cruz.

0

Video Maritime Piloting in the 17th-Century

published on 25 June 2022

Many people wonder how ships made it across entire oceans without getting lost in the seventeenth century. Aaron introduces seventeenth century navigation to us today by beginning with piloting.

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 Loud & Clear COMM while berthing vessels

by Nasir Khan - published on 25 April 2022

A video by Capt. Pilot Nasir Khan, Pakistan
Why loud and clear communication is very important.

1

Video Embarking the pilot at the Port of Açu in rough weather

published on 20 May 2022

Embarque mais cedo hoje no Porto do Açu (RJ). Prático Diogo Weber.
#Praticagem #ZP15 #PraticagemDoBrasil #NaoPara #24h #EficienciaNosPortos

0

Video 8 Hours in Kaohsiung, Taiwan

published on 6 July 2019

Follow me as I travel around the world working on a container ship!
The mega container ship is alongside Kaohsiung for one day, I had 8 hours off between my watch, so i took the opportunity to explore Kaohsiung, Taiwan. Brought along my drone to take some shots at the beautiful architecture that Taiwan has to offer.

0