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

Video Columbia River Bar Pilots History

published on 2 January 2023

There are approximately 160 Columbia River Pilots, which are organized into two associations. The Columbia River Pilots Association (CRPA) is made up of 80 pilots, while the Washington Pilots Association (WPA) consists of 80 pilots.

Article Pilot transfer arrangements by AMSA

by Marine-Pilots.com - published on 18 November 2019

This notice reminds shipowners, operators, masters, crews, recognised organisations, marine pilots and pilotage providers of the obligation to provide safe pilot transfer arrangements.

Article German pilots establish the "Pilot Information Assistant - PIA" project

by Ship&Offshore DVV Media Group - published on 5 September 2019

The PIA project of German pilots is a great maritime success story and ensures greater safety and efficiency on German shipping routes. Thus, with no exceptions, all of the approx. 890 German maritime and port traffic controllers could be gathered for use of the PIA system and its PPU.

Video TasPorts | Marine Pilots and Marine Operatives

published on 15 November 2020

Have you ever wanted to watch a marine pilot in action? Last night, TasPorts was delighted to offer up for auction a pilot boat experience to support Cancer Council Tasmania's 25th Anniversary Gala in Launceston. A second experience will be offered at the Cancer Council Tasmania Gala in Hobart next month. Both events raise funds to support Tasmanians dealing with cancer through advocacy, prevention, support and research. This video was filmed in 2018 (pre-COVID), was broadcast at last...