Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi all,
Vanilla are planning an update to the site on April 24th (next Wednesday). It is a major PHP8 update which is expected to boost performance across the site. The site will be down from 7pm and it is expected to take about an hour to complete. We appreciate your patience during the update.
Thanks all.

Ship porn

1…5961636465

Comments

  • #1802
    Atlantic Dawn
    Registered Users Posts: 81,058 ✭✭✭✭Atlantic Dawn
    M


    Kynlee Bewildered Necktie wrote: »
    No picture as it’s too far offshore, but can currently see heavy load carrier vessel Xiang Yun Kou from the Louth / Meath coast right now. Not sure what she’s carrying (something tall) but nice to see something unusual here.


    Marine Traffic has destination as Las Palmas, perhaps some technical issue stopping them on route, some interesting photo's or previous cargos...

    https://www.marinetraffic.com/en/ais/details/ships/shipid:554766/mmsi:413055620/imo:9483097/vessel:XIANG_YUN_KOU


  • #1803
    Tabnabs
    Moderators, Recreation & Hobbies Moderators, Sports Moderators Posts: 15,687 Mod ✭✭✭✭Tabnabs


    Kynlee Bewildered Necktie wrote: »
    No picture as it’s too far offshore, but can currently see heavy load carrier vessel Xiang Yun Kou from the Louth / Meath coast right now. Not sure what she’s carrying (something tall) but nice to see something unusual here.

    Heard her calling Carlingford CG yesterday requesting permission to anchor and Carlingford was lost for words. No one ever asks them for permission for anything. Didn't hear any reason being given for request.


  • #1804
    Kynlee Bewildered Necktie
    Closed Accounts Posts: 3,502 ✭✭✭ Kynlee Bewildered Necktie


    There she is now, Holy God.


  • #1805
    AndyBoBandy
    Moderators, Social & Fun Moderators Posts: 14,868 Mod ✭✭✭✭AndyBoBandy


    While were on the subject, here she is...

    TrpQnPv.jpg


  • #1806
    beauf
    Closed Accounts Posts: 22,651 ✭✭✭✭beauf


    Such a cool thread.


  • Advertisement
  • #1807
    AndyBoBandy
    Moderators, Social & Fun Moderators Posts: 14,868 Mod ✭✭✭✭AndyBoBandy


    Wouldn't want to get T-Boned by this thing.....

    alp-defender_9737242_1834115_Large.jpg

    FF85756.jpg


  • #1808
    Tabnabs
    Moderators, Recreation & Hobbies Moderators, Sports Moderators Posts: 15,687 Mod ✭✭✭✭Tabnabs


    Savage looking yoke!


  • #1809
    CJhaughey
    Registered Users Posts: 14,906 ✭✭✭✭CJhaughey


    Like many things X-bow has been around before now albeit in a slightly different format and without the benefit of computer aided modelling.
    This is the Massena from the 1890's

    528665.jpg


  • #1810
    thomil
    Registered Users Posts: 1,059 ✭✭✭thomil


    Ah yes, the Massena - that ship’s main defensive system was apparently to look so horrendous that any enemy range-finder optics would crack the moment they were aimed at the ship :pac:

    Seriously, watch Drachinifel’s video on French pre-dreadnoughts on YouTube. He goes into excruciating detail on how and why these ships turned out the way they did, all the while throwing tons of shade at them :D

    Good luck trying to figure me out. I haven't managed that myself yet!



  • #1811
    dogmatix
    Registered Users Posts: 1,404 ✭✭✭dogmatix


    The French called this tactic “fierce face” – a ship so intimidating looking it would terrify their opponents before battle. Might have worked against some small Asian or Middle eastern force of the 19th century but against any modern navy of that age it would have had no effect at all. As for the pronounced bow – that might have been a ram. Ramming was seen as a viable tactic for ironclad ships for a few decades after the battle of Lissa.


  • Advertisement
  • #1812
    thomil
    Registered Users Posts: 1,059 ✭✭✭thomil


    And here I thought that the French designers just completely misunderstood their task to design an “offensive” ship ;)

    It’s interesting that many of the ram ships that came about as a result of the battle of Lissa actually ended up with a bit of a performance/fuel efficiency boost because the underwater ram had a similar effect to the bulbous bow on modern ships. As for Lissa itself, I always thought of that battle as “Trafalgar choreographed by Monty Python”

    Good luck trying to figure me out. I haven't managed that myself yet!



  • #1813
    Kynlee Bewildered Necktie
    Closed Accounts Posts: 3,502 ✭✭✭ Kynlee Bewildered Necktie


    Kynlee Bewildered Necktie wrote: »
    No picture as it’s too far offshore, but can currently see heavy load carrier vessel Xiang Yun Kou from the Louth / Meath coast right now. Not sure what she’s carrying (something tall) but nice to see something unusual here.

    Can now see Xiang He Kou in the same spot !


  • #1814
    cnocbui
    Registered Users Posts: 19,651 ✭✭✭✭cnocbui


    Reminders of a bygone era I stumbled upon:

    Ocean-liner-luggage-labels.jpg

    Lloyd-Tristino-2.jpg

    Lloyd-Tristino.jpg

    I have travelled on the Marconi, and others.


  • #1815
    Tabnabs
    Moderators, Recreation & Hobbies Moderators, Sports Moderators Posts: 15,687 Mod ✭✭✭✭Tabnabs


    An eye on ship designs for the future.

    1200.jpg
    EXOSKELETON STRUCTURE
    This structure is fitted outside the hull to provide the required longitudinal strength, rather than to rely, as all ships do, on the hull structure. This allows ocean going and river hulls to be lighter and in case of river hulls, also extremely low draught.

    1200.jpg
    THE WINGED BOW
    This oceangoing vessel bow is claimed to reduce resistance of the hull resulting in either higher speed, or less power, fuel consumption and GHG emissions. It also reduces motions in waves, shown in testing and in operation to be 50 percent lower than conventional bow fitted hulls, and eliminating slamming, therefore making it possible to design a lighter structure. It also increases capacity of the hull or reduces it length and cost for given capacity.

    https://www.maritimejournal.com/news101/vessel-build-and-maintenance/ship-and-boatbuilding/patented-technologies-for-more-efficient-hullforms


  • #1816
    Mr_A
    Registered Users Posts: 500 ✭✭✭Mr_A


    Didn't the Greeks used to stick those on their triremes?
    1417391.jpg


  • #1817
    Thargor
    Registered Users Posts: 17,863 ✭✭✭✭Thargor


    And wasnt the efficiency effect rediscovered after the ramming fad on the early ironclads?


  • #1818
    thomil
    Registered Users Posts: 1,059 ✭✭✭thomil


    Thargor wrote: »
    And wasnt the efficiency effect rediscovered after the ramming fad on the early ironclads?

    Exactly. Ramming came back into "naval fashion" after the battle of Lissa 1866, when the Austro-Hungarian Navy managed to beat the superior Italian Navy, not least due to ramming a number of Italian ships.

    With ram bows becoming a feature on pretty much every pre-dreadnought, it was noticed at some point in the late 1880s and 1890s that ships with a ram bow, particularly those with a submerged ram bow, were able to slightly exceed their calculated top speeds, or use less coal at lower speeds due to the same effect that would later give rise to the bulbous bow. At the same time, a comparison became more practical, as some navies began dropping their ram bows from their later designs as engagement ranges began to increase, resulting in a number of straight bow ships.

    The first actual bulbous bow designed specifically to reduce drag was actually installed on the battleship USS Delaware which was launched in 1910, though it would take until 1935 and the french liner Normandie, or possibly even later with the Yamato class and Iowa class battleships for the concept to really take hold in naval design.

    Good luck trying to figure me out. I haven't managed that myself yet!



  • #1819
    CJhaughey
    Registered Users Posts: 14,906 ✭✭✭✭CJhaughey


    Hull speed is roughly 1.34 x the square root of waterline length, I worked on a trawler that would steam at 12kts but when loaded with 120t of fish would do about 13.5 due to the increased waterline length.


  • #1820
    Tabnabs
    Moderators, Recreation & Hobbies Moderators, Sports Moderators Posts: 15,687 Mod ✭✭✭✭Tabnabs


    CJhaughey wrote: »
    Hull speed is roughly 1.34 x the square root of waterline length, I worked on a trawler that would steam at 12kts but when loaded with 120t of fish would do about 13.5 due to the increased waterline length.

    Seems odd that an engine operating at the same RPM would go faster when 120t of weight is added to the boat and she sits lower in the water as a result. I get the hull speed equation, but the increased weight of the boat would have cancelled any hull speed increase, I would have thought.

    The story sounds a bit, ahem, fishy... :p


  • #1821
    cnocbui
    Registered Users Posts: 19,651 ✭✭✭✭cnocbui


    Once you get a large mass moving, it takes no more power to keep it moving than a lesser mass, all else being equal, like wetted hull area and friction.

    So it's perfectly reasonable to believe a loaded vessel with an increased water line could go faster.

    A surface vessel is limited in top speed by the length of the 'wave' trough it sits in. The same length and mass vessel, if turned into a submarine and fully submerged, isn't 'trapped' by this trough and can attain a far higher top speed as it's no longer limited by the length of it's trough. A Soviet K - 222 Papa Class Submarine supposedly could reach almost 45 knots.

    In an ideal world, all the worlds sea freight would travel in giant submarines and shipping times would be halved.

    A surface vessel can go faster than it's trough limit if it has a large power to weight ratio and a design that allows it to escape the trough and plane along the surface rather than sit in it's trough.

    In my youth, I had cause to read some chapters from the book: Aero-Hydrodynamics of Sailing by C. A. Marchaj.

    One of my madder ideas at the time was to wonder if you could use a kite to power a sailboard. Silly idea, it would never work.


  • Advertisement
  • #1822
    Tabnabs
    Moderators, Recreation & Hobbies Moderators, Sports Moderators Posts: 15,687 Mod ✭✭✭✭Tabnabs


    cnocbui wrote: »
    Once you get a large mass moving, it takes no more power to keep it moving than a lesser mass, all else being equal, like wetted hull area and friction.

    So it's perfectly reasonable to believe a loaded vessel with an increased water line could go faster.

    That seems reasonable and correct if we consider something like a freight train which, once it gets up to speed, is able to maintain the speed for the same power output.

    A hull in water is a very different environment and the varying resistance created by waves and swell alone would likely also against any increase in hull length due to the vessel being lower in the water. The hull length isn't just increased, but also the width/beam, so the block coefficient is also greater.

    Back to the example of the loaded fishing vessel given above. For the maths to work on the speed increase given, the change in length would have to go from 80ft to 100ft. No fishing boat increases in length by 20% once fully loaded.


  • #1823
    cnocbui
    Registered Users Posts: 19,651 ✭✭✭✭cnocbui


    Tabnabs wrote: »
    That seems reasonable and correct if we consider something like a freight train which, once it gets up to speed, is able to maintain the speed for the same power output.

    A hull in water is a very different environment and the varying resistance created by waves and swell alone would likely also against any increase in hull length due to the vessel being lower in the water. The hull length isn't just increased, but also the width/beam, so the block coefficient is also greater.

    Back to the example of the loaded fishing vessel given above. For the maths to work on the speed increase given, the change in length would have to go from 80ft to 100ft. No fishing boat increases in length by 20% once fully loaded.

    Reality always wins over theory.


  • #1824
    Tabnabs
    Moderators, Recreation & Hobbies Moderators, Sports Moderators Posts: 15,687 Mod ✭✭✭✭Tabnabs


    Kynlee Bewildered Necktie wrote: »
    There she is now, Holy God.

    Seems to be still there, after all this time. Although her destination has changed from Las Palmas (a common bunkering location for big ships) to a Chinese port. Seems very odd (and expensive for the charterers)?

    https://www.marinetraffic.com/en/ais/details/ships/shipid:3982720/mmsi:477810700/imo:9752656/vessel:XIANG_HE_KOU


  • #1825
    Kynlee Bewildered Necktie
    Closed Accounts Posts: 3,502 ✭✭✭ Kynlee Bewildered Necktie


    Tabnabs wrote: »
    Seems to be still there, after all this time. Although her destination has changed from Las Palmas (a common bunkering location for big ships) to a Chinese port. Seems very odd (and expensive for the charterers)?

    https://www.marinetraffic.com/en/ais/details/ships/shipid:3982720/mmsi:477810700/imo:9752656/vessel:XIANG_HE_KOU

    I understand this is a sister ship or else a return leg from las palmas, as she had an oil rig on her a few weeks back when anchored there and now it either has wind turbines or oil drilling equipment (something very tall but too far out to see clearly). Massive swells in the Atlantic this week so maybe just taking shelter? Cool nonetheless.


  • #1826
    Thargor
    Registered Users Posts: 17,863 ✭✭✭✭Thargor


    Flying Dutchman 'Fata Morgana' mirage spotted off the Cork Coast:

    nl3ebmrt1px51.jpg

    https://www.corkbeo.ie/news/local-news/bizarre-picture-shows-floating-ship-19235228


  • #1827
    Muahahaha
    Registered Users Posts: 19,609 ✭✭✭✭Muahahaha


    The new ferry for the Aran Islands being delivered a couple of days ago.

    EmKqdarU0AAjIgH?format=jpg&name=small

    0015a2e0-614.jpg?ratio=1.78

    You can see another boat on board too. I love the idea of a ship sailing around the world delivering other boats.

    It had an interesting route too, it departed from Hong but didnt go through the Suez canal, instead it went around the Cape and then it appears to have headed for a stop in Venezuela before heading to Galway. I would guess the Venezuela stop might have been just for fuel, years ago I got on a yacht from Isla de Margherita just offshore from Venezuela and up through the Leeward Islands of the Caribbean. The skipper had sailed all the way down to Venezuela to buy 1,000 litres of fuel because at the time you could get a litre for 3 cents, I kid you not. The port was full of lots of yachties who spent the season in the Caribbean were doing the same, they would head south from St Lucia, Martinque, Guadeloupe, etc on a four day round trip down to Venezuela to fill up with the 3 cents a litre diesel.


  • #1828
    AndyBoBandy
    Moderators, Social & Fun Moderators Posts: 14,868 Mod ✭✭✭✭AndyBoBandy


    Muahahaha wrote: »
    I love the idea of a ship sailing around the world delivering other boats.

    Ship shipping ships


  • #1829
    Markcheese
    Registered Users Posts: 8,427 ✭✭✭Markcheese


    Thargor wrote: »
    Flying Dutchman 'Fata Morgana' mirage spotted off the Cork Coast:

    nl3ebmrt1px51.jpg

    https://www.corkbeo.ie/news/local-news/bizarre-picture-shows-floating-ship-19235228

    That's amazing ..

    Slava ukraini 🇺🇦



  • #1830
    Storm 10
    Registered Users Posts: 5,871 ✭✭✭Storm 10


    Muahahaha wrote: »
    The new ferry for the Aran Islands being delivered a couple of days ago.

    EmKqdarU0AAjIgH?format=jpg&name=small

    0015a2e0-614.jpg?ratio=1.78

    You can see another boat on board too. I love the idea of a ship sailing around the world delivering other boats.

    It had an interesting route too, it departed from Hong but didnt go through the Suez canal, instead it went around the Cape and then it appears to have headed for a stop in Venezuela before heading to Galway. I would guess the Venezuela stop might have been just for fuel, years ago I got on a yacht from Isla de Margherita just offshore from Venezuela and up through the Leeward Islands of the Caribbean. The skipper had sailed all the way down to Venezuela to buy 1,000 litres of fuel because at the time you could get a litre for 3 cents, I kid you not. The port was full of lots of yachties who spent the season in the Caribbean were doing the same, they would head south from St Lucia, Martinque, Guadeloupe, etc on a four day round trip down to Venezuela to fill up with the 3 cents a litre diesel.

    It left Hong Cong and travelled to Vietnam it was at anchor there for a few days waiting for a berth, it then headed to Durban in South Africa and then headed to Belem in Brazil before crossing the Atlantic to Galway, It left Galway on Sunday afternoon and is now in Holland


  • Advertisement
  • #1831
    Inis Alah
    Registered Users Posts: 10 ✭Inis Alah


    Storm 10 wrote: »
    It left Hong Cong and travelled to Vietnam it was at anchor there for a few days waiting for a berth, it then headed to Durban in South Africa and then headed to Belem in Brazil before crossing the Atlantic to Galway, It left Galway on Sunday afternoon and is now in Holland

    Still a shorter journey than both of her sisters, The Draoicht and the Ceol were both shipped from Perth in 99 and 01 respectively. I was surprised to see this one in the hold. Both of the others were deck cargo.


Advertisement