Video

Interaction Bank Effect


published on 30 June 2022 1021 -

Found on YouTube. Created by "Dleep Fotedar". Originally published on 2021-01-29.
Educational and descriptive video

Join the conversation...

Login or register to write comments and join the discussion!
MH
Mike Harrison United Kingdom
on 22 September 2023, 11:38 UTC

I'm an Engineer, not a Mariner, but the physics are fascinating and I've experienced bank effects first hand on a number of transits. Closely related issues apply to moored vessel motions caused by passing ships and there are a few great YouTube examples of the initial big surge of a moored vessel, counterintuitively towards approaching passing ship (which can render the spring lines), before the onset of yaw and sway which, more dangerously, can render or break bow/stern lines. Speed, distance, draft, seabed profile and the inclination of approach (i.e. maybe not parallel on river bend berths etc) all play a big part. I've used high end PPUs to monitor and analyse moored vessel movements and the results are fascinating, sometimes alarming as the loads can quickly exceed the winch/bollard/line capacities.

A moored vessel will continue to oscillate for a long time after the other ship passes, which slows/delays cargo transfers, even if the moorings remain intact. Ships get bigger, docks and rivers don't, so clearance and speed are the key controllable factors.
0

Mr. Frikkie Viljoen ABP - Humber Estuary Services, United Kingdom
on 4 July 2022, 14:55 UTC

Good representation of the specific aspects. One other aspect that appears to left mute is the fact that it is Speed Through Water that is the important factor. Working as a Pilot in a district where neap tides rates can range between 1.5 to 3.8 knots, and with Spring Tide Rates between 2.6 and 5 knots (subject to location); it is two widely different scenarios going with the tide as apposed to against the tide.
We experience all the aspects frequently within our district.
1

Captain Robert de Roos Loodswezen Rotterdam - Rijnmond, Netherlands
on 30 June 2022, 16:53 UTC

This is a very clear and helpful presentation about shallow water effects etc. However, please note that the equation of Bernouilli contains v^2, meaning that all effect are in square when the vessels speed is double. In my opinion this is very important for pilots/captains to understand. Again well done!
2

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 Importance of Wearing Safety Helmets at Work. Examples for Pilots

published on 22 September 2020

Importance of Wearing Safety Helmets at Work. ... Hard hats or Safety helmets act as the first line of defense against head injury, but they only work when they are worn correctly. Thus, it's safe to say safety Helmets save lives and reduce the risk of brain injury. #wearenavigators info@wearenavigators.com www.wearenavigators.com

2

Article First Pilot Station Steers a Course for Seably Online Maritime Training

published on 5 November 2021

The Varna Pilot Station in Bulgaria has chosen Seably, the global online marketplace for bespoke maritime learning, to become the first pilot station to use the digital platform for its training.

0

Article Save The Date: Webinar Dangerous Ladders with Arie Palmers

published on 23 March 2022

On 1st April 2022 Brazil Pilots - Praticagem do Brasil - will organize a webinar about dangerous ladder with speaker Arie Palmers.

1

Video Maritime Piloting in the 17th-Century

published on 25 June 2022

Many people wonder how ships made it across entire oceans without getting lost in the seventeenth century. Aaron introduces seventeenth century navigation to us today by beginning with piloting.

0

Video Cultura de Segurança e sistemas de PPU

published on 21 May 2021

Cultura de Segurança e sistemas de PPU (Portable Pilot Unit) Gustavo Martins presidente do CONAPRA (2015-2019)
***Publicado em Fevereiro de 2020***

0

Video Pilot Boat Malaysia

published on 12 December 2022

Pilot kapal pandu Kapal pandu, Pilot boat, Pelindo, Pelaut, Kapal laut, Seaman, Ship, Pelayaran, Pelabuhan, Jakarta, Tanjung priok, Marine pilot, Kepanduan, Boat, Kapal, Pandu, Pandu bandar, Pandu laut, Job At seaKapal pandu, Pilot boat, Pelindo, Pelaut, Kapal laut, Seaman, Ship, Pelayaran, Pelabuhan, Jakarta, Tanjung priok, Marine pilot, Kepanduan, Boat, Kapal, Pandu, Pandu bandar, Pandu laut, Job At sea
#pelabuhanambon #kotaambon #kapalpelni #temanpelni #kmciremai#pelabuhanambon...

0

Article Sandy Hook pilot Dennis Sherwood has died after falling during embarking

by Marine-Pilots.com - published on 30 December 2019

A pilot of Sandy Hook, Dennis Sherwood fell off a ladder while boarding a ship today at 4:30 a.m. and died of his serious injury in Staten Island hospital.

0