Video

Spiral-Test -Manoeuvre for detailed identification of Yaw Stability using Samples of Cruise Ship


published on 29 September 2021 92 -

Found on YouTube. Created by "ISSIMS - Innovative Ship Simulation". Originally published on 2021-09-01.
This video shows an introduction on the Spiral-Test-Manoeuvre and describes the procedure how to steer through this manoeuvre and measure the data needed. The results will be displayed in a characteristic diagram allowing to identify stable and unstable conditions and related, detailed information, e.g. spiral loop width and height, rudder angle of neutral effect. Samples of stable and unstable ship behaviour demonstrations will be shown by Fast Time Simulation using the SAMMON Planning tool. Finally, a discussion of of ship’s hull form with loading conditions and elements like appendages completes the overview on effects of Yawing stability.
The next videos to follow will demonstrate other manoeuvres (e.g. Pull-out Test and Zig-Zag Test) which are also helpful to identify and discuss the stability condition for ships and the different aspects contributing to yaw stability.
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

Article Dutch Safety Board: Stricter instructions for transfer of pilots

by Marine-Pilots.com - published on 12 August 2024

The transfer of pilots to and from seagoing vessels should not rely solely on mutual trust and good intentions.

1

Article Danish pilots agree to collective agreement

published on 20 October 2022

We are satisfied with the result, and it shows that continued constructive dialogue with the employer pays off," writes Jens M. Sørensen, chairman of Lederne Søfart, in a press release.

2

Article Study: Identifying cognitive challenges for safe ship overtaking in restricted

by Stella Parisi & Dimitris Nathanael - published on 9 February 2026

Navigation in constrained waters is a cognitively challenging task for seafarers requiring the combined assessment of various elements to perform it with safety. This paper presents a approach to make sense of the dynamic, uncertain,and complex work domain of sea pilotage.

0

Video Pilot disembarkation from tanker at BAY OF BENGAL

published on 9 November 2021

Hooghly river Marine pilotage is one of the toughest and longest pilotage in the world,
pilots here face many challenges daily to enable safe passage of ships from bay of Bengal to the port of CALCUTTA and Haldia.
Pilot embarkation and disembarkation is a vital part , where the pilot climbs up or down a rope ladder ,if the free board is more than 9 meters then combination ladder is used it needs very good physical fitness practice and experience to safely embark and disembark from these...

1

Video Storm Bert, Rough & calm, 'Murshid' Interceptor Pilot 60

published on 5 December 2024

We get to take the rough with the smooth on sea trials, 'Murshid'- Interceptor Pilot 60, lovely looking pilot boat.

0

Video Pilot Boat "KAPITÄN JÜRS" / Brunsbüttel

published on 21 August 2019

The film shows the pilot change on 21.8. - and 29.8. 2010 in Brunsbüttel. Filmed from board MS "Anna Sirkka"

0