Video

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

published on 26 November 2021 - 259 -

Show comment section |

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.

ISSIMS GmbH
Innovative Ship Simulation And Maritime Systems

Education

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 BVT Chartering und Logistics GmbH with tugboat captains and marine pilots for training in the NAUTITEC ship simulator

published on 26 April 2021

n preparation for future heavy load transports with the heavy load pontoon "BHV INNOVATION", BVT Chartering und Logistics GmbH were guests in the NAUTITEC ship simulator together with the Bremerhaven

Article Report: Securing of pilot ladders at intermediate lengths – testing

by nc2 Engineering Consultancy - University of Southhampton - published on 28 July 2023

Report by nC2 Engineering Consultancy at the University of Southampton on behalf of the International Maritime Pilots' Association (IMPA) to investigate the effectiveness and impact of different methods of securing pilot ladders in medium lengths in a laboratory-based project.

Video Maritime Education #5: Pilotage Operations on General Cargo ship

published on 17 February 2023

Maritime Education #5: Pilotage operations in General Cargo ship
An insight to points of attention during Embarkation and disembarkation of Pilots.
This video will be dedicated to my future Maritime students who will be joining General Cargo ships, this is what we normally do here, and this is for your virtual guide.
Thank you subscribers and keep growing so as my contents as well❤️

Article New app: Pilot´s Tug Assist Tool PTAT - Bollard Pull Calculation for Marine Pilots

by Capt. M. Baykal Yaylai - published on 19 February 2020

Required tug power and number of tugs needed in variable conditions of wind, current and waves isin most cases an assessment made by pilots based on their professional experience. However, assessments will raise questions by lawyers if something goes wrong. They will use tools to calculate what really is needed with respect to tug power and number of tugs. They have furthermore the advantage of time.

Article Wärtsilä to supply one of Europe’s most advanced simulators to Finland

published on 22 November 2023

Technology group Wärtsilä will supply its latest simulator technology for a new maritime training centre in Finland.

Video Why Can't Ships Reverse Around Corners?

published on 20 September 2024

This video explores the question of why ships are so difficult to manoeuvre in reverse.

Video Pilot Boarding with Pilot Boat SEA MASTER Rio De La Plata, Argentina

published on 13 November 2021

This video was filmed on board Pilot Vessel "SEA MASTER" and shows the moments when the Pilot Boat was proceeding to the #BoardingStation #KM239_1 #PuntaIndioChannel #Recalada #RioDeLaPlata to the vessel "GLORY HARVEST", to start with the Embarking Maneuvering of the #RioDeLaPlataPilots