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

Video Radio communication, reporting and embarkation of pilot onboard cargo ship

published on 15 September 2021

A glimpse onboard cargo ship on how we do reportings upon entering VTS area and contacting of pilot upon arrival. On this video, the vessel is arriving in port of Bremen, Germany.
How we do it onboard? Watch the full video.

0

Video Who Are The San Francisco Bar Pilots: A VR Film

published on 18 March 2024

For 174 years, the San Francisco Bar Pilots have been safely navigating the world’s largest ships through some of North America’s most challenging waterways.

0

Article Fedepilot leadership meets the new EMPA President Erik Dalege

by Federazione Italiana Piloti dei Porti - published on 27 October 2021

The first trip of Captain Erik Dalege, the new President of EMPA - European Maritime Pilots' Association, is in Italy. In recent days, at the Rome offices, he met with the top management of Fedepiloti is Italian.

0

Video So Long Solina! The Local Captain Takes His Leave November 2, 2021

published on 9 February 2022

A more unique angle regarding freighter departures; I was able to film the routine disembarking of one of our local ship captains and officers after piloting Solina out of the harbor. This is a required procedure, as per US Maritime Laws, all international freighters must be piloted in and out of a US harbor by a US Captain. Here we have out local pilot vessel Sea Bear running up alongside the Solina to allow the two officers to depart the freighter before she heads out across Lake Superior

0

Video Marine Month in Canada - British Columbia Coast Pilots

published on 29 October 2025

Explore how marine pilots guide massive ships safely through challenging waters along the British Columbia coast.

0

Article The NZMPA Good Practice Guide for Pilots 2021

published on 4 April 2022

The Good Practice Guide for Pilots 2021 describes the knowledge and skills (technical and non-technical) that the NZMPA believe all pilots should aim to achieve and maintain. It is written primarily for pilots for their own guidance and professional development, but can be used as a framework for pilot training, proficiency and assessment. It is referenced to NZ Maritime Law and Codes.

1