Shuttleworth 32

Discussion in 'Multihulls' started by HydroNick, Dec 5, 2015.

  1. HydroNick
    Joined: Apr 2010
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    Location: British Columbia

    HydroNick Nick S

  2. UpOnStands
    Joined: Nov 2015
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    UpOnStands Senior Member

    I keep hoping that the Packs will post a weight for the cat as launched.
    sans engines/mast etc.
    They scored the foam heavily to get the compound curves and there appears to be a lot resin in the cuts - does it make a significant weight difference?
     
  3. HydroNick
    Joined: Apr 2010
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    HydroNick Nick S

    Well he does say <6000 lbs but whether that is the designer's weight or the built weight who knows. His contact information is there and the YouTube videos are pretty good. Interestingly it's a 32 in the thread I posted but a 31, which is one of the sizes I'd heard of for the Shuttleworth designs, not 32...on YouTube.
     
  4. UpOnStands
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    UpOnStands Senior Member

    already sent one email a few days ago but no reply to date.
    seems as if they are interested in selling hulls/complete boats?
    in the message from Tom we see
    "The 45 should be much faster than the 32. The difference is in the weight (drag), typically about 4000 pounds against 30,000 pounds. " 4000 lbs= 1814 kgs
    But launched weight would be real nice to know
     
  5. HydroNick
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    HydroNick Nick S

    Maybe 31 is the old slanted stem and 32 is the vertical variety
     
  6. UpOnStands
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    UpOnStands Senior Member

    quite possible.
    not sure that such a light boat would benefit from a vertical stem
    I've seen videos where the vertical stem creates a fountain while underway - suppose it depends on how fine the bow angle is
     
  7. Smj1
    Joined: Nov 2015
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    Smj1 Junior Member

    We've seen this boat while she was being painted and also when back in the water. She is beautifully done and seems to float well above her lines, but then again the interior isn't complete. I'm pretty sure the 32 is a 31 with a slightly longer stern. Shuttleworth has come out with a design to extend the bows of the 31/32 and make them wave piercing. Here's a link to a youtube video showing the Fossailing Shuttleworth 31's with the bows retrofitted.
    http://youtu.be/plp2WqY8JB4
     
  8. HydroNick
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    HydroNick Nick S

    Thanks SMJ. Nice video, the bows look good. I recall a comment from Richard Woods that you can't just change the bow shape without making other adjustments. Maybe the mast rake changed??
     
  9. UpOnStands
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    UpOnStands Senior Member

  10. redreuben
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    redreuben redreuben

    I always thought the original bow was pretty steep anyway, certainly compared to a Kelsall, so marginal gain I would have thought unless additional work was done to increase the prismatic as well ?
    Those Fos sail boats are also pretty heavily loaded too which would have a big effect on how they pitch in a seaway.
     
  11. packsail
    Joined: Feb 2012
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    packsail Junior Member

    Willie Pack here. When we lifted her back in the water the crane weighed her at 5200lbs without mast. Engines were on.

    She is fairly heavy because of the grid cut foam on the contours. I will do the next one differently. After consulting Shuttleworth should perform just fine with the added weight. I would say maybe 4 or 500 pounds too heavy.

    She is 32'3". Shuttleworth extended the transoms to even out the added buoyancy of the plumb bows. I made the bows plum mostly for aesthetics.

    I'll look thru some of the other questions here and respond hopefully tomorrow. In the meantime here is my email address.

    William@packsail.com

    PS. My sails are long overdue. Hopefully Quantum will have them soon and I'll post some drone footage of the sea trials.
     
  12. packsail
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    packsail Junior Member

    I'll leave you all tonight with this cool email I received from Shuttleworth when I asked about his favorite sails.

    Re sails. I do not have a favourite at the moment. You need someone who understands that this boat will sail as close to the wind as a racing monohull. A big mistake made but the ignorant is to cut the main too full. They may not believe you but you will outsail any equivalent sized monohull upwind.
     
  13. UpOnStands
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    UpOnStands Senior Member

    glad to have you guys active and in the water - now for sails
    400-500 lbs of excess weight sounds expensive unless its all in plywood :p
    but you have the molds and that is a real plus
     
  14. Smj1
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    Smj1 Junior Member

    Hey Willie,
    We were in the area last Thursday and stopped by to look at your boat. The rig looks great and looks like she will be a screaming fast cat! AJ
     

  15. rogerf
    Joined: Apr 2012
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    rogerf Junior Member

    Absolutely packsail; find a sailmaker that knows and understands multihulls.

    I'm not sure that cheapest is best, you need quality sails that maintain their shape over a long time. That might mean paying a little more upfront.

    EDIT: I see from further above that you have ordered Quantum so thats a good start.
     
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