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

Article Study: Managing the Attributes of Pilot Errors in the Process of Redevelopment of Marine Pilot Reliability Index MPRI)

published on 28 June 2022

Managing the Attributes of Pilot Errors in the Process of Redevelopment of Marine Pilot Reliability Index MPRI): A Systematic Literature Review

0

Article NAUTITEC Shiphandling Simulator and Training Centre, Germany

published on 9 February 2021

NAUTITEC as a maritime simulation and training centre offers various services for shipping companies, port authorities, captains and for pilots and tug crews.

1

Video Risk Involved When Unmooring Operation on Deck

published on 10 August 2020

Risk Involved When Unmooring Operation on Deck

0

Article Improving Teams Performance in Pilotage Waters

by Herman Broers - published on 31 March 2022

This paper aims to explore the possibilities of improving team performance on the bridge in pilotage waters. The pilot and the bridge team have a common goal: to navigate the ship safely and smoothly.

0

Opinion Pilot safety: a crucial component of navigation safety

by MS Amlin Marine - published on 22 October 2024

The latest MS Amlin Marine circular, compiled by theTechnical Loss Prevention Consultant Peter van der Kroft, focuses on the importance of pilot safety in marine navigation.

0

Article Human Error in Pilotage Operations

published on 3 December 2024

This article was first published back in September 2021: Pilotage operations require close interaction between human and machines. This complex sociotechnical system is necessary to safely and efficiently maneuver a vessel in constrained waters.

0

Video Live test of 275 N lifejacket in combination with a backpack.

published on 30 September 2021

During a sea survival training, the 275 Newton standard issue of the Dutch pilots was put to the test in combination with a small backpack.

0