Video

Zig-Zag-Test-Manoeuvre for Yaw Stability, IMO Manoeuvring Standards and Crash Stop


published on 26 November 2021 259 -

Found on YouTube. Created by "ISSIMS - Innovative Ship Simulation". Originally published on 2021-11-25.
This video is now the last of the Yaw Stability series. It shows an introduction on the Zig-Zag-Test-Manoeuvre and describes the procedure how to steer through this periodic rudder manoeuvre, switching the rudder depending on the heading change. Some characteristic parameters are explained, specifically the overshoot angles following counter rudder are suitable to decide on stable and unstable conditions as part of the IMO Standards for ships manoeuvrability.
Samples of stable and unstable ship behaviour demonstrations will be shown by Fast Time Simulation using the SAMMON Planning and the SIMOPT tool. The results are discussed with respect to the IMO limit values. Finally, the effect of yaw stability on the tracks of Crash Stop Manoeuvres are discussed, demonstrating the impact of small turning rates when starting to reverse the engines.
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 iTalk by Ms Reshma Nilofer, Sector Pilotage Services

published on 25 August 2020

iTalk conducted by IME(I) Mumbai Branch. The speaker was Ms Reshma Nilofer, Sector Pilotage Services

0

Video Presentation of manned ship models at Port Revel Shiphandling Training Centre

published on 24 October 2019

Port Revel is used for shiphandling training of maritime pilots, masters and officers on a 5 ha lake with 11 manned model ships representing 20 vessels, and 4 tugs at scale 1:25 and DGPS tracking system. Instructors are former maritime pilots.
Training on the scale models provides experience that could never be gained on real ships for the simple reason that neither ship-owners nor local authorities would allow such risks to be taken. Scale models allow the shiphandler to make mistakes....

0

Video EfficientFlow - SEAiq Pilot Introduction v1.1

published on 27 June 2021

Showing the new EfficientFlow functions for the SEAiq PPU, to be used by pilots and ferry personnel in the Baltic Sea

0

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

published on 29 September 2021

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.

0

Video Port Revel Ship Handling Training Centre

published on 24 October 2019

Port Revel is a ship handling training center for pilots, captains and officers. Unique in its kind, it allows to acquire new skills, to improve on different manned models at scale 1 / 25th.

0

Article ABP invests around £9 million in state-of-the-art pilot boat fleet

by Marine-Pilots.com - published on 9 November 2020

Associated British Ports (ABP) the UK’s largest and best-connected port operator, has commissioned a fleet of nine new state-of-the art pilot boats from Goodchild Marine Services, representing an investment of around £9 million to further enhance port operations across its network.

1

Video Golden Ray Salvage: Last Section Removed on 10/25/2021

published on 28 October 2021

Finally!!! The last section of the ship was removed from the site and taken to port for final salvage. While there is still a lot of clean up remaining this is a big mile stone in the salvage operation of the Golden Ray which capsized over 2 years ago on 9/8/2019 in the sound of St Simons Island, Georgia. Included is the movement of the section along with footage taken from a boat trip at the site and at the port. Some of my best video in the 2 years I've been filming. So I hope you enjoy...

0