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 e-book and international book order available: "Theory and Practices of Marine Pilotage" by Capt. Santosha K Nayak

published on 7 August 2020

This book was only available in some areas, now the author has created an e-book version. Furthermore it´s available on amazon as a paperback.

Completely new book on Ship manoeuvring techniques based on new revealing facts which have been brought to light. Must read for all the mariners to understand the behaviour of ships and how to control her behaviour during manoeuvring.

1

Video S-100 Services for Safe & Optimized E-Navigation

published on 27 August 2020

“The world of hydrography is going digital and the S-100 standard is an essential component of that move.” See how the Canadian Hydrographic Service has led Canada to become one of the first countries in the world to start using the S-100 standard, and how implementing these standards will benefit Canadians through increased safe navigation in Canadian waters. S-100 Producer: http://www.charts.gc.ca/data-gestion/index-eng.html#S100 chsinfo@dfo-mpo.gc.ca S-100 Cloud: https://www....

0

Video M+ Maritime I ECDIS Safety Settings | Full Video | Episode 1

published on 11 July 2020

M+ releases the 1st video of ECDIS competency series on “Safety Settings” presented by Safe Lanes. Use them for training crew, enhance safety standards & professional knowledge. Stay tuned for our upcoming series on ECDIS competency, Anchor losses, Incidents, PCS & vetting preparations & Human Elements training. These “first of it's kind” learning videos are based on PSC & vetting observations to provide solutions & enhance your professional competency. Pls feel free to connect to get a...

2

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

Article Rumos Práticos 62 by Praticagem do Brasil published in Portuguese and English

published on 4 November 2022

In the 62nd edition of Rumos Práticos the editors visited the Paranaguá and Antonina Pilotage Zone (Paraná-PR) to portray the challenges faced by the pilots in one of the largest port complexes in South America.

3

Article Brightlingsea Pilots order new Seaward 29 Pilot Boat

published on 27 May 2021

Brightlingsea Harbour - a mixed leisure and commercial port on the East Coast of England
has recently signed contracts with Seaward to have a new pilot boat built, The demands of Pilot duties as well as working as a patrol boat and harbour launch, and the sea conditions that can occur in the area made the Nelson hulled Seaward the natural choice of vessel.

0

Article Harwich Haven Authority applies for extension of pilotage area

by Marine-Pilots.com - published on 17 September 2020

Following a review Harwich Haven Authority (the Authority), in its role as a Competent Harbour Authority (CHA), has applied to the Department for Transport (the Department) to extend its existing area of voluntary pilotage to include the western most areas of Hamford Water and Oakley Creek in the area known as the Walton Backwaters.

0