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 Report on Safe Tug Procedures

by Captain Henk Hensen (Marine Consultant) - published on 6 February 2020

Based on Pilot, Tug Master and Ship Captain Questionnaires

Compiled by:

Captain Henk Hensen FNI FITA Captain Daan Merkelbach FITA Captain F. van Wijnen MNI

0

Video EfficientFlow - STM in ports and narrow waters

published on 22 September 2020

Improved traffic flow converts waiting times into increased safety and bunker savings for large ships in the narrow Swedish and Finnish archipelagos.
Found on YouTube. Created by "Sjöfartsverket".
In the STM EfficientFlow project, the Baltic ports of Rauma and Gävle implement efficient port calls using real-time information. Improved traffic flow converts waiting times into increased safety and bunker savings for large ships in the narrow Swedish and Finnish archipelagos.

2

Article St. Andrew’s Bay Pilots Mourn the Loss of Captain Phillip Brady

by Florida Harbor Pilots Association - published on 16 January 2026

The St. Andrew’s Bay Pilots are deeply saddened to announce the passing of Captain Phillip Brady, age 46, on January 12, 2026.

0

Video Maritime Single Window 2024: New guidelines are coming!

published on 15 November 2022

Video recording of the Maritime Single Window 2024 Window of opportunities Webinar which took place on 24 October and highlighted the benefits and opportunities for maritime trade arising from the application of the maritime single window (MSW) to electronic ship clearance processes in ports.

0

Article Pilot Boats, a Designer and Builders Perspective

by Safehaven Marine - published on 6 August 2021

Safehaven Marine build a range of vessels for many different operational roles such as patrol, survey, crew transfer to name a few, but what makes Safehaven unique is that we specialize in pilot boats, with 80% of our production dedicated to just this area, and have supplied over 50 pilot craft all around the world over the last 17 years.

0

Article The continuum of simulator-based maritime training and education

published on 23 November 2021

The COVID-19 pandemic has brought unprecedented challenges to the maritime supply chain and called for accelerated adoption of digital technologies in various aspects of maritime operations, including the area of maritime education and training (MET).

0

Video Harmony of the Seas leaving St Thomas Pilot Boat 1/20/22

published on 21 January 2022

Royal Caribbean Harmony of the Seas leaving St Thomas pilot Boat 1/20/22

0