1. Home
  2. Videos
  3. ...
Video

Wind drift making headway - practical experiments for voyage planning and Rule of Thumb


published on 7 April 2021 -  254 -

Show comment section | 0
Found on YouTube. Created by "ISSIMS - Innovative Ship Simulation". Originally published on 2021-03-08.
Here are described some experiments to get data for voyage planning:
- how to measure wind effects and prepare ship specific diagrams to estimate required drift angles and also rudder angles for wind balance
- to be applied for voyage planning, considering expected operational conditions, specifically for preparing manoeuvring plans for Port arrival and departure planning!
- analysing theses data a simple formula could be derived to calculate the drift angle ß depending on absolute wind speed VA, encounter angle aA and ship speed Vs to:
ß= arctan (CD*(VA +Vs*cos aA)*sin aA)/Vs)
And all this is demonstrated by means of the unique SAMMON Planning software based on Fast Time Simulation of ship manoeuvres...
Enjoy, share and give some thumbs up, if you are satisfied with the movie - and my haircut!
Knud Benedict

Join the conversation...

Login or register to write comments and join the discussion!
SO
Mr Sean O’Toole ABP - Associated British Ports, United Kingdom
on 7 April 2021, 16:13 UTC

In my experience, a ship moving ahead, rudder amidships, the ship will develop a rate of turn into the wind. However the first manoeuvre on this simulator with rudder midships does not show this, in fact no RoT at all. Quite often at work, I will tell the bridge team I am about to start a turn to starboard/port, order midships and then try to crack a joke about the ship has been here before and knows where to go!!
0

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 Critical Ship navigation done with perfection

published on 31 January 2022

0

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 Webinar - Port & Pilot supplied ECDIS routes and passage plans

published on 29 January 2021

The Australasian Marine Pilots Institute is presenting a webinar via Zoom about ports providing ECDIS routes and passage plans to ships as part of the pre-arrival process.

It will take place on Thursday 11 February 2021 at 19:00 AEDT (08:00 UTC) and is free for AMPI/IMPA/UKMPA/NZMPA members. Non-members are also welcome to attend.

2

Video M+ Maritime I ECDIS Safety Settings | Full Video | Episode 1

published on 11 July 2020

M+ releases the 1st video of ECDIS competency series on “Safety Settings” presented by Safe Lanes. Use them for training crew, enhance safety standards & professional knowledge. Stay tuned for our upcoming series on ECDIS competency, Anchor losses, Incidents, PCS & vetting preparations & Human Elements training. These “first of it's kind” learning videos are based on PSC & vetting observations to provide solutions & enhance your professional competency. Pls feel free to connect to get a...

2

Video OMC International - Suezmax Tanker - Case Study

published on 14 October 2019

Case Study: An investigation into whether Port of Melbourne and major port user, ExxonMobil, could bring deeper drafted vessels into the channel.

0

Video Maritime Pilot Training IV - Man overboard manoeuvre

published on 12 May 2021

Training video IV on the correct behaviour in case of man overboard

0

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.

2

Video Pilot Maritime Maneuver Msc Samar

published on 26 August 2022

0

Video Female Singapore Harbour Pilot

published on 28 December 2020

Women’s rights and gender equality are taking centre stage in 2020. But for some women, the fear of gender discrimination has never stopped them from pursuing their dream and Ms Amelia Pickering, a Harbour Pilot, is one of them. Inspired by her father, she shares how she started her journey in the Maritime industry and some of the challenges she faced being a female Harbour Pilot. -- Connect with Us! Facebook: MONEY FM 89.3 Instagram: @moneyfm893 Twitter: @moneyfm903 Linked In: MONEY FM 89....

0