SeaRider 360 (Need help with Rigging)

Discussion in 'Multihulls' started by Gunnar Sommerlund, May 24, 2020.

  1. Gunnar Sommerlund
    Joined: Jun 2017
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    Location: Denmark

    Gunnar Sommerlund Marine Engineer

    I have acquired a searider 360 catamaran, i think it was sold as sailcat/surfcat in USA:
    It was a bargain, only 50 euros :p

    The boat is in very good condition but without a rig.

    I have managed to acquire a "surf rig" but i dont understand how to connect it to the mast/boom so that the mast will be able to rotate?

    I mean i cannot just clamp 4 cables to the boom :/

    I have written to SAGA BOATS in Norway, who produced these boats netweem 1989 and 1992. but they did not have the manuals anymore.

    Any help or know how would be much appreciated.



    Here are the pictures of the boat.

    [​IMG]
    [​IMG]
    [​IMG]

    Here are some of the pictures that i was able to find on the internet.(for reference)
    Only old ones exits, hence the quality.

    [​IMG] [​IMG]

    [​IMG] [​IMG]
     
    Last edited: May 24, 2020
  2. Yobarnacle
    Joined: Nov 2011
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    Yobarnacle Senior Member holding true course

    Is that a sailboard rig? the heel of the mast on sailboards is a universal type joint. the mast and sail lay down unless held up ny the person manipulating the sail.
     
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  3. Yobarnacle
    Joined: Nov 2011
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    Yobarnacle Senior Member holding true course

    A short rigid stayed mast could be stepped just forward of the sailboard mast, and the flexible mast secured to the permanent mast with a topping lift tackle.

    gunter rig.jpg
     
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  4. Yobarnacle
    Joined: Nov 2011
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    Yobarnacle Senior Member holding true course

    It's called a gunter or sliding gunter rig, if you want to research it.
     
  5. Gunnar Sommerlund
    Joined: Jun 2017
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    Location: Denmark

    Gunnar Sommerlund Marine Engineer

    Yes it is a sailboard rig. All the boats that i could find are configured with it, aperantly thats how they were made. The boat has fixed anchors for mounting stays so i can only assume the sailboard rig must be mounted with stays somehow.
    If i stand and hold the rig, i cannot control the rudder. So the rig must be fixed.

    I have today used a pipe clamp and attached 4 stays to it.
    It was with mixed results because the clamp was very cheap and soft. however the mast was able to rotate freely while being fixed vertically.
    I still believe that there would be some standard system on how it was originally rigged.
    Sincerely Gunnar



    Picture of my attempt today
    [​IMG]
     
  6. Yobarnacle
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    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    Maybe those anchor points were to clip a safety harness too. Stayed the operator?
     
  7. Yobarnacle
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    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    Possible this is designed as a two crew craft? One to steer, the other to handle sail?
     
  8. nwguy
    Joined: Feb 2010
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    Location: Poulsbo, WA

    nwguy Junior Member

    That's a sliding mast track typically used for windsurfing long boards. It takes a proprietary mast foot that plugs into it. Looks like a vintage Mistral brand track. The mast feet can be hard to find. Do you have one? Looks like you do based on the rig being set up. I think your shrouds for the rig are correct for sitting-down sailing. I suspect you could sail it like a windsurfer with no rudders, and just lean the rig fore to turn downwind and aft to turn upwind, like you do on a longboard windsurfer. Would be way more fun to sail that way.
     
  9. Russell Brown
    Joined: Jul 2012
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    Location: washington state

    Russell Brown Senior Member

    That's a cool boat! I had a dinghy with the same kind of rig, but my shrouds were adjustable to cant the rig to windward. I bonded on a carbon eye strap to the aft face of the mast (where the wishbone joined, like yours) and had a loop running around the mast that the shrouds hooked into. How much does the boat weigh? Reminds me a bit of a Patin catamaran.
     
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  10. Blueknarr
    Joined: Aug 2017
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    Location: Colorado

    Blueknarr Senior Member

    Welcome,

    Unfortunately, I don't have a picture.

    Way back when, I owned a vessel of similar concept. The mast had a "bull ring" set on it's leading edge. The stays clipped on to it. The pivot was between the stays and the bull ring.

    You appear to be trying to have the mast rotate within the hose clamp. This will chaff away the mast quickly.

    Good luck

    Did a quick search for "mast hound". Came back with many options. Yobarnackle's pic actually shows two hounds in use.
     
    Last edited: May 26, 2020
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  11. fallguy
    Joined: Dec 2016
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    fallguy Senior Member

    I am no sailor, merely an intriqued observer.

    It looks to me as though the one fellow use the windsurf rig and had a long tiller extension he may have kept in place with his foot? Which looks rather cumbersome to use and quite some dancing, but loads of fun once you got the knack if you had the coordination to manipulate the rig and stay course with your feet.

    Otherwise, looks like you need to find a windsurf boom to me. And it looks like he stayed the boom and not the mast. ??

    what do I know; enough to cause heads to shake
     
  12. Gunnar Sommerlund
    Joined: Jun 2017
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    Location: Denmark

    Gunnar Sommerlund Marine Engineer

    Nah the clamp is fixed. so wholæe mast rotates within sliding track.

    Also i never knew of this mast hound. i will try local boat hardware store =)
     

  13. Gunnar Sommerlund
    Joined: Jun 2017
    Posts: 29
    Likes: 4, Points: 3
    Location: Denmark

    Gunnar Sommerlund Marine Engineer

    Yeah i 3d printed one. Works like a charm.

    [​IMG]
     
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