Video

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


published on 7 April 2021 254 -

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 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 SIMULATION / MANEUVER OF APPROACH AND MOORING to "TIMBUES" HARBOUR" (BRM - P) BRM Course for #Pilots

published on 4 July 2019

These images show a Navigation drill (SIMULATION) of approach and mooring to one of the Harbours of the Paraná River - "TIMBUES" Harbour (Management and Resources of the Navigation Bridge for Pilots) - (BRM - P) in charge of the Paraná Harbours Pilot, Captain Mr. Diego SCHOTTENHEIM. Exercise carried out in the Navigation Bridge Simulator of the Maritime and Riverine Research and Training Canter (MRRTC), Autonomous City of Buenos Aires #Argentine on March 12, 2019, since 14:50 till 15:55...

0

Video Operation of POD Ships - Discussion on Efficiency comparing Conventional and IN-OUT POD strategy

published on 8 June 2022

In this movie the efficiency of two different pod operation strategies is compared: With azimuth propeller ships the Pods can be used in two ways to control the speed, e.g. for speed reduction: 1. by adjusting the engine orders, e.g. by reducing the RPMs to get lower speed - this means to drive the ship in the same conventional way as for twin screw vessels, 2. by turning both pods either in- or outward (TOE-IN or TOE-OUT) to reduce the forward thrust and therefore reducing the speed – the...

0

Article Study: Online survey among maritime pilots: job-related stress...

published on 2 September 2021

Online survey among maritime pilots in Germany: job-related stress and strain and the effects on their work ability.

2

Video Maritime Training: Pilot Ladders: Safe Rigging Procedures

published on 25 February 2020

Pilot transfer operations always involve risk, even when conditions are favorable. Learn the essential safety procedures involved in this operation.
Visit https://www.maritimetraining.com/Course/Pilot-Ladders-Safe-Rigging-Procedures to purchase the full-length version.

0

Article Houston Pilots Practice Part Art, Part Science in Guiding Ships to Port

published on 11 November 2020

Maritime pilots trace the roots of their profession back to the ancient Greeks and Romans when incoming ship captains employed experienced local fisherman to guide their merchant vessels safely into port. It’s a legacy of skill, strength, and sharp wits, and our Houston Pilots (“Pilots”) have been meeting vessels at Galveston’s bar to carry on these proud traditions for just shy of 100 years.

2

Video Interceptor 60 Pilot alongside ship handling sea trials

published on 26 August 2025

Here’s a cool little video of the 2nd Interceptor 60 ‘Rubban’ built for DP World undergoing alongside ship handling sea trials, with some lovely drone footage of the container ship ‘BG Ireland’ as well.

0

Video APL Mexico City destroys crane in Antwerp (09.12.2019)

published on 2 September 2020

9 December 2019 - 'APL Mexico City' hits adrift and rams port crane in Antwerp.
Author of these images is unknown, they circulate freely on social media.
Should an author identify with these images and have any objections, they will be removed upon simple request to Flows.be.

0