boom on VOR boat?

Discussion in 'Boat Design' started by patrick2wd, Nov 20, 2014.

  1. patrick2wd
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    patrick2wd Junior Member

    what/ how/ why?

    [​IMG]

    cant really find any good images of it, but looks interesting...
     
  2. rcnesneg
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    rcnesneg Senior Member

    I think its something to get the clew of the genoa outboard a bit more? As I recall there was something that looks like that thing that broke on the VOR65s recently.
    Take a look at this: http://www.sailingscuttlebutt.com/2014/11/03/volvo-ocean-race-damage-southern-ocean/
    Look at this video, 0:20 in. That rod thingy looks just like the one in your picture.
    The article says it was part of the sheeting system for the masthead genoa.

    These are on the older open 60 boats, and it looks like they do the same thing, but I'm not sure they are being used in either picture.

    [​IMG]

    [​IMG]
     
  3. patrick2wd
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    patrick2wd Junior Member

    I know these on the IMOCA's these are "trawler rigs" and located near the mast,
    on my (first) picture, these are fitted and the stern of the boat, very different place,
    hence my inquiry...
     
  4. Stumble
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    Stumble Senior Member

    It's the same concept, but a different design. They are called reaching struts and allow refinement of the sheeting angle for the spinnakers.
     
  5. messabout
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    messabout Senior Member

    The picture of boat 44 suggests that Nick Wallenda (the tight rope guy) has taken up sailing.
     
  6. bpw
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    bpw Senior Member

    The big ones near the shrouds are deck spreaders. They support a wider staying base for the standing rigging. Very different purpose than a reaching strut.
     
  7. patrick2wd
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    patrick2wd Junior Member

    cant really seem to find any interesting info on these reaching struts..
     
  8. Eric Sponberg
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    Eric Sponberg Senior Member

    What info do you need? They act in exactly the same way as spreaders on a mast, or as bowsprits on the bow. They increase support of the mast by making the shroud or stay angle to the mast much wider. The poles would be engineered the same way as spreaders and bowsprits--in nearly pure compression. The understanding of their use should be implicit.

    Are there drawbacks? Of course--they are more equipment to build, more wires to tend to, both of which add to cost and weight, and they are more things to break. Just imagine what would happen if one little cotter pin let go and a clevis pin fell out of place??? The whole rig could likely go over the side, and then where would the skipper be? Dead in the water, primed for rescue, probably, unless he could set a jury rig.

    Is that a big drawback? Some, like me, think so. I say get rid of the wires and go free-standing. "Nuff said," since most people on this forum know where I am coming from.

    These kinds of struts have been around prominently since the mid-1990s, and one could probably trace their lineage back to Greek and Roman times, maybe further. So the idea of struts like these is not new.

    Eric
     
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  9. Joakim
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    Joakim Senior Member

  10. patrick2wd
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    patrick2wd Junior Member

  11. bpw
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    bpw Senior Member

    I think we need to get our names straight.

    The first picture posted by Patrick is a reaching strut, it changes sheet leads. Not much different than sheeting a job through the spinnaker pole.

    The second pair of pictures show deck spreaders, they hold the rig up.
     
  12. patrick2wd
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    patrick2wd Junior Member

    copied this picture from my mobile...

    [​IMG]

    looks interesting...
     

  13. patrick2wd
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    patrick2wd Junior Member

    And I didnt wanted to keep this from you...
    an oportunety to flush the urine bottle:

    [​IMG]
     
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