Found on YouTube. Created by "Dleep Fotedar". Originally published on 2021-01-29.
Educational and descriptive video Join the conversation...
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.
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.
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.
We experience all the aspects frequently within our district.
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!
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...
Video How port pilot sail out ship from the port? Grimaldi lines catania roro ship
published on 22 April 2022
Article Standard for Health Assessment of Marine Pilots - NSW (2009)
published on 22 June 2021
Video Good old times: PLA Thames Pilots at Work
published on 18 May 2020
Video On the frontline: working at sea amid the COVID-19 crisis
published on 8 February 2021
When the world locked down, Australia’s marine pilots continued bringing ships safely into the nation’s ports to deliver the goods we depend on. Around 6,000 ships visit the ports of NSW each year and meeting them at sea to help them navigate into our ports and harbours are Port Authority’s marine pilots and cutter vessel crews. ••• Port Authority of New South Wales manages the navigation, security and operational safety needs of commercial shipping in Sydney Harbour, Port Botany,...
Video Smart Sound Plymouth: Britain’s platform for innovative marine technology development
published on 30 June 2021
Dr James Fishwick, Head of Smart Sound Plymouth gives an introduction to Smart Sound Plymouth and explains how it can be accessed and the equipment available.
This is a recording of the webinar given on the 17th June and is the second in a programme of webinars organised by Plymouth City Council which showcases the thriving marine sector in Plymouth, UK.
You can view the full programme of webinars and register for them here:
https://www.eventbrite.co.uk/e/oceansgate-marine-technology-webinar-...
Article Factors affecting maritime pilots' health and well-being: a systematic review
published on 18 June 2021
Video IRAGO 11 PILOT BOAT
published on 13 March 2023
IMO: - Name: IRAGO 11 PILOT BOAT Vessel Type - Generic: Pilot Vessel Vessel Type - Detailed: Pilot Vessel Navigational Status: Active MMSI: 431003419 Call Sign: - Flag: Japan [JP] Gross Tonnage: - Summer DWT: - Length Overall x Breadth Extreme: 18 x 4 m Year Built: - Home Port: - https://www.marinetraffic.com/en/ais/details/ships/shipid:661579/mmsi:431003419/imo:0/vessel:IRAGO_11_PILOT_BOAT
Video Improper use of VHF leads to collision - Human errors contributing most to nav accidents today
published on 11 July 2020
Maritime Training Videos series by Dhhunki Productions. Contact us for production of Maritime training & safety videos,Training Shoots & Films,Incident Analysis,Case Study Videos Corporate & Ad Films,Intro-Seminar-Conference Shoots,Documentary & Short films,Music Videos www.dhhunkiproductions.com E-mail:dhhunkiproductions@gmail.com
