Video

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

published on 29 September 2021 - 92 -

Show comment section |

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.

ISSIMS GmbH
Innovative Ship Simulation And Maritime Systems

What's your opinion on this?

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...

Video Critical Ship navigation done with perfection

published on 31 January 2022

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

Article "Pilotage Escort" among Covid-19 measures introduced at Peterhead Port

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

According to "Buchan Observer": Peterhead Port Authority has introduced remote pilotage for selected vessels entering the harbour as part of a package of measures designed to reduce the risk of staff and users contracting the Covid-19 virus.

Video “Harbor Pilot” 1960s Los Angeles Harbor Freighters & Ships Education Film

published on 25 June 2020

Harbor Pilot is a short film from 1967 that gives viewers a brief look at what a harbor pilot is and does. The film opens with footage of a sailboat sailing at sea, followed by a shot of a rocky coastline (01:10) and then an aerial view of a modern harbor — the Port of Los Angeles. A large freight ship, SS Gemstone, is out at sea. A harbor pilot stands on land at the Port of Los Angeles, looking out over the harbor. He walks into the pilot station at the entrance to the harbor to check the...

Article Next-level shiphandling simulation using VR

by Captain, MSc. Remko Fehr - published on 13 December 2023

Kiel Pilots introducing Morild Interaktiv AS Virtual Reality Simulator for next-level manoeuvring training.

Video Associated Branch Pilots

published on 17 December 2020

For nearly 150 years, the Bar Pilots have protected our environment by safely guiding ocean-going vessels through our waterways.

Opinion The last day of service for Brisbane Marine Pilots

by Brisbane Marine Pilots - published on 31 December 2021

As the sun comes up on the last day of 2021, the last shipping day for Brisbane Marine Pilots, our pilots out on the water serving the Port of Brisbane Pty Ltd, as they have done every day since 1st January 1989.

Article Roberto Bunicci new President of Fedepiloti

published on 26 October 2022

Commander Roberto Bunicci, chief pilot of the Port of Ravenna's Pilots' Guild and already Vice President in office, is the new President of the Italian Federation of Port Pilots.