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Ways to secure catamaran on paved surface  Bottom

  • ch_kurkio
    ch_kurkio
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    Link to this post Posted: Apr 17, 2013 - 03:43 AM
    The other thread was about securing cats on the beach so...

    The place where I keep my cat is mostly paved and I was thinking of ways to prevent this from happening again:

    http://www.thebeachcats.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=91101&g2_serialNumber=4

    There are two possibilities on how I would store the cat,

    a) keeping the cat and tying it on the trailer this time...

    b) keeping the cat on supports on the pavement and securing it somehow

    Option b would be the preferred method, as I would like to be using the beachdolly to move the cat, not with trailer and car.

    Do you tie down the trailer as well if you store your cat on it, or do you rely on the weight of the trailer to keep it down?

    Any ideas how to secure the cats?

    -CH-

    --
    Christian Kurkio
    Nacra 500
    Inter 20 (sold)
    Pori, Finland, Europe
    --
  • arch
    arch
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    Link to this post Posted: Apr 17, 2013 - 10:42 AM
    i can definitely say that the weight of the trailer and sailbox will not keep a cat flat...
    http://www.flickr.com/pho…in/photostream/lightbox/
    j



    Edited by arch on Apr 17, 2013 - 10:43 AM.

    --
    Aquacat 12 (sold)...'87 Nacra 5.8 (sold)...'03 Nacra Inter18 (sold)
    Venture 15 (sold)....'89 Nacra 5.8 (sold)...'91 Nacra 5.8NA (sold)
    '99 Nacra Inter20 (sold)
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  • windadict
    windadict
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    Link to this post Posted: Apr 17, 2013 - 11:37 AM
    Get 2 bags (or more) of concrete mix (use one for fence posts that don't require mixing $4.50/bag). Stick an eye bolt into it, cut the slot to allow the water in and poor water. You can also use pails instead original bags. 1/2 an hour later you will have pretty heavy anchor (I learned that from Italians icon_lol ).

    --
    Adam Bartos
    Nacra 5.0
    SolCat 18 (sold)
    Lake Zurich, IL
    --
  • solsailer18
    solsailer18
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    Link to this post Posted: Apr 17, 2013 - 11:45 AM
    Quotei can definitely say that the weight of the trailer and sailbox will not keep a cat flat...
    http://www.flickr.com/pho…in/photostream/lightbox/
    j


    That's a crazy picture! I never would have thought about the need to tie down a boat attached to a trailer, but i guess it makes perfect sense. I've suddenly become more interested in this discussion... icon_eek

    --
    Jeremy Hales
    1974 SOLCAT 18
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  • arch
    arch
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    Link to this post Posted: Apr 17, 2013 - 05:45 PM
    asphalt is not a very strong surface to anchor into....concrete would be better.

    see if they will let you put these anchors into the pavement. then use an eye-bolt instead of a regular bolt so you have something to tie onto. if you remove the eye-bolt, nothing should remain to stick up.
    http://asphaltanchors.com/index.php/en/
    watch the 'demo'
    http://asphaltanchors.com/images/renderings/SP12%20PR%20135px.jpg
    j



    Edited by arch on Apr 17, 2013 - 05:46 PM.

    --
    Aquacat 12 (sold)...'87 Nacra 5.8 (sold)...'03 Nacra Inter18 (sold)
    Venture 15 (sold)....'89 Nacra 5.8 (sold)...'91 Nacra 5.8NA (sold)
    '99 Nacra Inter20 (sold)
    --
  • Edchris177
    Edchris177
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    Link to this post Posted: Apr 17, 2013 - 11:06 PM
    Quotei can definitely say that the weight of the trailer and sailbox will not keep a cat flat...

    Ouch! the first Nacra just looks sad that way. As a note, he was lucky the rudders were fully "up". If they are down,(think about this if you flip the Cat on the lawn) you can break the castings/blades as it goes over.

    --
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    Nacra 5.0
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  • Edchris177
    Edchris177
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    Link to this post Posted: Apr 17, 2013 - 11:07 PM
    Quote(I learned that from Italians icon_lol )

    Is Bartos = Wop? icon_biggrin

    --
    Hobie 18 Magnum
    Dart 15
    Mystere 6.0XL Sold Was a handful solo
    Nacra 5.7
    Nacra 5.0
    Bombardier Invitation (Now officially DEAD)
    Various other Dock cluttering WaterCrap
    --
  • ch_kurkio
    ch_kurkio
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    Link to this post Posted: Apr 25, 2013 - 06:00 AM
    Hi guys and thanks for the input

    It took me a while to answer, but wanted to have the sketches to clarify the idea. The drilled anchors could be one idea but since we dont have assigned locations for boats that could be difficult. I was also thinking of using 20 or 30 liter canisters or old car tyres as weight, but I think there would need be so many that they would be in the way most of the time.

    Concrete weights could be one idea, at least on the home port. One could use an old tyre as mold for concrete weight and it would also serve as protective bumber, so it would not hurt that much when hitting the weight with bare feet. Inside would be a garden hose for the tie down rope, making it easy to replace the rope if needed. Another advantage would be that there would not be anything sticking (a loop, bolt etc.) out that you could hurt yourself or the cat. A foam on the topside would make it even safer. The tyreweight would also be a bit easier to move around than a concrete slab if such would prove necceseary.

    http://www.thebeachcats.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=101746&g2_serialNumber=4

    http://www.thebeachcats.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=101749&g2_serialNumber=4

    --
    Christian Kurkio
    Nacra 500
    Inter 20 (sold)
    Pori, Finland, Europe
    --
  • BigWhoop
    BigWhoop
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    Link to this post Posted: Apr 25, 2013 - 07:07 AM
    We use a similar, but larger, system for anchors at our club, Lac Deschenes Sailing Club, Ottawa, Canada. I would recommend a hole through the middle, big enough to put a steel fence post through. That way you can put the post in the middle, pry the thing upright, roll it to where you want it, and let it down under control. Then take your post and go do the others. Otherwise these things are gonna be hard to move.
  • MN3
    MN3
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    Link to this post Posted: Apr 25, 2013 - 08:33 AM
    archi can definitely say that the weight of the trailer and sailbox will not keep a cat flat...
    http://www.flickr.com/pho…in/photostream/lightbox/
    jEdited by arch on Apr 17, 2013 - 10:43 AM.


    a cat on a trailer with a cat (mast up) will defiantly topple with enough wind.

    mast down will survive much longer, but will still flip at some point (steel trailer is MUCH heavier than an aluminum one, so that is a big factor here)

    If you build concrete weights, why not use some chain instead of line. IMHO line running through the concrete will burn through a hose and then rub your line apart very quickly (your boat will be rocking and sawing through the hose in every storm
  • hyperope
    hyperope
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    Link to this post Posted: Apr 26, 2013 - 09:20 AM
    Edchris177
    Quote(I learned that from Italians icon_lol )

    Is Bartos = Wop? icon_biggrin


    Brilliant idea! Should be on the next space shuttle design team. I think, however, that an eye bolt with perhaps some big washers and nuts inserted into the wet concrete would be a great way to attach lines. Can't see how an eye bolt a few inches above the concreted tire would cause any damage to boat or feet. Would be easy to tie to. My boat is in my back yard (grass) on trailer. I have used some of the screw-type devices used to tie off dogs or secure RV awning. Had 50 MPH wind thru my yard and boat was still there. I put my bungees on to keep the boat on the trailer if expecting a storm or strong winds.



    Edited by hyperope on Apr 26, 2013 - 09:21 AM.

    --
    Eric C

    Force 5 project boat
    Unnamed

    Previous boat
    1980 Nacra 5.2
    "Double Vision"
    --
  • ch_kurkio
    ch_kurkio
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    Link to this post Posted: May 19, 2013 - 11:03 PM
    BigWhoop I would recommend a hole through the middle, big enough to put a steel fence post through. That way you can put the post in the middle, pry the thing upright, roll it to where you want it, and let it down under control.


    Thanks for the tip Big one, really made it easy to move the tyres around! I have two tyres now in use, third one is in garage drying up. I used old 16" 205-55 tyres from my car, filled with concrete and five masonry bricks broken into pieces, one tyre weighing 85 kg and second 90 kg. I put in an stainles steel eyebolt to attach the tiedowns.

    http://www.thebeachcats.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=102367&g2_serialNumber=4

    --
    Christian Kurkio
    Nacra 500
    Inter 20 (sold)
    Pori, Finland, Europe
    --
  • MN3
    MN3
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    Link to this post Posted: May 20, 2013 - 08:56 AM
    thats a joke right?
    Quote I put my bungees on to keep the boat on the trailer if expecting a storm or strong winds.
  • marcs2

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    Link to this post Posted: May 20, 2013 - 01:07 PM
    to secure big tents they drive a long spike into the asphalt at an angle and tie a line to it. you could do the same and put something over it when the boat is not there. it would only need to stick above the asphalt a few inches.



    Edited by marcs2 on May 20, 2013 - 01:09 PM.
  • pirateboy27

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    Link to this post Posted: May 20, 2013 - 03:37 PM
    My P18 (with steel trailer) didn't flip, but in some real heavy wind it did move out into the main road of my storage facility. My lot neighbors are all construction guys, so I consider myself fortunate that my mast is still straight. I think I like the idea of the cement tire with the large pipe in the middle for easy movement. I'm glad I read this topic!

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    Repairable P18
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  • ch_kurkio
    ch_kurkio
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    Link to this post Posted: May 21, 2013 - 03:05 AM
    Should this be of interest, I made a photo album about the tyre weights.

    http://www.thebeachcats.c…ctures/?g2_itemId=102388

    --
    Christian Kurkio
    Nacra 500
    Inter 20 (sold)
    Pori, Finland, Europe
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