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 Navigation alternative in the event of GNSS failure due to jamming or spoofing

by TRENZ GmbH - published on 7 April 2025

What happens when GNSS fails? In maritime navigation, this isn’t a hypothetical scenario – it’s a growing risk. Spoofing, jamming, and GNSS outages are increasing, especially in the Baltic Sea region. A failure can cripple navigation systems – with potentially serious consequences.

1

Opinion How OpenBridge seeks to improve maritime workplaces

by Prof. Kjetil Nordby Institute of Design - The Oslo School of Architecture and Design - published on 6 May 2020

Lack of standard user interfaces across bridge equipment is a major concern for maritime safety. Pilots are in a unique position, as they are constantly exposed to new and differing bridge working environments, equipment, interface designs and combinations of systems. As pilots face this problem throughout every shift they need to put in considerable effort to adjust their work to the many user interfaces they meet.

0

Video AIMPA’s Webinar on “Reconceptualising Indian Maritime Pilotage on 24th Oct 2020

published on 28 January 2021

The need to hold such a webinar was felt from the interaction over several months of AIMPA members through its President, Capt. Gajanan Karanjikar, with Capt Simon Meyjes and Capt.Ravi Nijjer - both instrumental in the thorough upgrade of pilotage operations Safety management systems in parts of Australia. From these interactions, AIMPA has come to the firm conclusion that a thorough upgrade of maritime pilotage management systems in India is necessary. Holding a webinar would be a good...

0

Article First Pilot Station Steers a Course for Seably Online Maritime Training

published on 5 November 2021

The Varna Pilot Station in Bulgaria has chosen Seably, the global online marketplace for bespoke maritime learning, to become the first pilot station to use the digital platform for its training.

0

Article The challenges of remote pilotage simulated in Rauma

published on 7 October 2021

As a part of the ISTLAB project the impact of external factors on pilots’ activities in a remote pilotage situation has been examined in Rauma.

1

Video Ship Arriving and Docking in Antwerp, Belgium | Life at Sea on a Container Ship

published on 4 August 2020

Time-lapse of a nearly 1000 foot Container Ship arriving and docking in Antwerp, Belgium. This is one of the longer pilotages on this ship's current route and typically takes around 5 hours or more including a pilot changeover.
Filmed using the GoPro Hero 8 Black.
Music: https://www.bensound.com/royalty-free...
#ships #maritime #antwerp

0

Article Unique electric pilot boat to the Swedish Maritime Administration

published on 17 October 2024

The Swedish Maritime Administration (SMA) has ordered an EF-12 Pilot boat from Artemis Technologies. The foiling and fully electric pilot boat will be one of the first of its kind.

0