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Thread: How do these things even stay right side up?

  1. #1
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    Default How do these things even stay right side up?


  2. #2
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    Spoils the view doesn't it? Most unattractive and not at all shippy.
    Have to be nasty in a cross-wind.
    Assuming it's just disgorged a small flood of Kiayundais, it's going home heavily ballasted. Which I guess would make it very stiff.


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  3. #3
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    Default Re: How do these things even stay right side up?

    Quote Originally Posted by Chris. View Post
    Spoils the view doesn't it? Most unattractive and not at all shippy.
    Have to be nasty in a cross-wind.
    Assuming it's just disgorged a small flood of Kiayundais, it's going home heavily ballasted. Which I guess would make it very stiff.


    Sent from my iPad using Tapatalk
    They are nasty in a cross wind.
    I spoke to a guy who supervised docking one after it's launch. It skated all over the place.
    As to staying the right way up: waterplane 2nd moment of area.
    Same as these
    It really is quite difficult to build an ugly wooden boat.

    The power of the web: Anyone can post anything on the web
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  4. #4
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    Default Re: How do these things even stay right side up?

    Quote Originally Posted by Chris. View Post
    Spoils the view doesn't it? Most unattractive and not at all shippy.
    Have to be nasty in a cross-wind.
    Assuming it's just disgorged a small flood of Kiayundais, it's going home heavily ballasted. Which I guess would make it very stiff.


    Sent from my iPad using Tapatalk
    Ugly? Hey it's a work boat what do you expect, form follows function. Who spends money to make art now days?

  5. #5
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    Default Re: How do these things even stay right side up?

    What does that mean Nick? “Waterplane “ thingy .

  6. #6
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    Default Re: How do these things even stay right side up?

    Quote Originally Posted by wizbang 13 View Post
    What does that mean Nick? “Waterplane “ thingy .
    http://forum.woodenboat.com/showthre...ent-of-inertia

    Simple pictures of the concept are rare in 't interweb.
    It really is quite difficult to build an ugly wooden boat.

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  7. #7
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    Default Re: How do these things even stay right side up?

    Whoa...TLDNR !

  8. #8
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    Default Re: How do these things even stay right side up?

    Quote Originally Posted by Peerie Maa View Post
    http://forum.woodenboat.com/showthre...ent-of-inertia

    Simple pictures of the concept are rare in 't interweb.
    I miss those guys...

  9. #9
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    Default Re: How do these things even stay right side up?

    Quote Originally Posted by Peerie Maa View Post
    http://forum.woodenboat.com/showthre...ent-of-inertia

    Simple pictures of the concept are rare in 't interweb.
    Makes my head hurt....

  10. #10

    Default Re: How do these things even stay right side up?

    Actually they sail quite well in the trades. At least the captain of a car carrier I talked to said he could throttle down in a good following wind. Cars are mainly air so quite a light cargo

    So heres a thing. If you send something by land you "ship" it If you send it by sea it is "cargo"

    RW

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    Default Re: How do these things even stay right side up?

    Only because Neptune doesn’t want them littering his front garden, floating shoe boxes.

  12. #12
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    Default Re: How do these things even stay right side up?

    Taken a Roll-on-roll-off commercial ship many times across the North sea, in a good following wind, anything above F7, they could shut down 1 engine......that saved 120 tons of fuel every 24 hours.

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    Default Re: How do these things even stay right side up?

    Quote Originally Posted by Richard of Woods Designs View Post
    Actually they sail quite well in the trades. At least the captain of a car carrier I talked to said he could throttle down in a good following wind. Cars are mainly air so quite a light cargo

    So heres a thing. If you send something by land you "ship" it If you send it by sea it is "cargo"

    RW
    I worked on a liquid gas carrier where the cargo boiled off and rather than waste the gas we burnt it as fuel. we would go from Brunei to Tokyo for free. We had so much gas we would dodge rain clouds.

  14. #14
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    Default Re: How do these things even stay right side up?

    In fairness, sometimes they don't...
    Someday, I'm going to settle down and be a grumpy old man.

  15. #15
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    Default Re: How do these things even stay right side up?

    Wow, all those people on a rocky pretty awful beach. And with the boat on its side, complete opposite to what I enjoyed yesterday.

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    Default Re: How do these things even stay right side up?

    Another one full of Mazdas heeled over to about 60 degrees once on it's way to the U.S. Some ballast tank mismanagement, I think. It floated around like that for some time after it was evacuated. There was a great story about what it took to salvage it. One guy died in the process. They had to rig pumps to get the ballast straightened out as I recall, at which point it was servicable. But working in the slanty ship was no picnic. The cars, although they never got wet, were sent to the compactor.

    I'm not finding that story, but here's a video of a similar situation.

    https://youtu.be/646mbcWGNo4
    -Dave

  17. #17
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    Default Re: How do these things even stay right side up?

    I spent some time on a "Data Ship". It was a Victory class freighter with 80 antennae and other stuff. At 82 revolutions and little wind we did 400 nm/24 hours. With the wind aft, it was 420 nm and with wind ahead, 380.

  18. #18
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    Default Re: How do these things even stay right side up?

    Simpler is better, except when complicated looks really cool.

  19. #19
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    Default Re: How do these things even stay right side up?

    Simpler is better, except when complicated looks really cool.

  20. #20
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    Default Re: How do these things even stay right side up?

    Quote Originally Posted by Paul Pless View Post
    Id like to see the stability chart for that! Well I wouldn't, because it would be meaningless to me, but wow!

  21. #21
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    Default Re: How do these things even stay right side up?

    And if I was the skipper for that delivery, I think I'd want the engineer who said it was safe to come along for the ride.
    -Dave

  22. #22
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    Default Re: How do these things even stay right side up?

    They don’t just do coastal stuff, the ones for the new container port in Liverpool came from China like that.

  23. #23
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    Default Re: How do these things even stay right side up?

    I'd like to see one with a load of fully built wind turbines. Now that would be pretty cool. Plug the turbines straight into the electric drive units. If they are diesel electric powered.

  24. #24
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    Default Re: How do these things even stay right side up?

    This shows them getting them off which must invole interesting and precise balasting opperations

    https://youtu.be/zLsibfF_5GA

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    Default Re: How do these things even stay right side up?

    Quote Originally Posted by Canoeyawl View Post
    I miss those guys...
    Yes, except for George Roberts. I don’t miss him much. Lots of other WBForum greats on that thread.

  26. #26
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    Default Re: How do these things even stay right side up?

    The Oklahoman who must not be named.
    Quote Originally Posted by James McMullen View Post
    Yeadon is right, of course.

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