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Re: Dynamite Sailboard hull for Stand Up Paddleboard?

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  • captjbturtle
    Hi Justin. I used a Dynamite sailboard as a windsurfer back in about 1983 in Florida. It worked well. Being longer than most windsurfers it sliced along
    Message 1 of 6 , Dec 2, 2012
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      Hi Justin. I used a Dynamite sailboard as a windsurfer back in about 1983 in Florida.
      It worked well. Being longer than most windsurfers it sliced along nicely.
      It was stable enough for a six foot 180 man to stand on easily.
      Two years ago I built an sup to my own design but quite similar.
      It is 30 inches wide and 17 feet long and works well. HOWEVER.
      it is very heavy. As Phil said, when you add a deck you double the weight so its much heavier than a kayak and therefore hard to move n shore.
      Instead of a deep fin like most commercial sups use I use a long fared in skeg which allows it to go though weeds well. a big consideration. Also if you build it airtight you need a vent to reliev air pressure or you can split the glass taped chines.
      In addition I have found that SUPs are very wind sensitive. Downwind fine but dont try to paddle to windward standing up wich of course means they are useless as a SUp half the time
      On the pro side however they paddle as well as a kayak when you are sitting down so I keep a kayak paddle aboard at all times which doubles your value. We use it mainly to paddle through weeds to deeper water where we can swim then climb back aboard. Something you cannot do from most kayaks.
      I would build a shrter and slghtly wider one next time with plentgy of rocker to keep the bow and tail from dragging. A simple hard chine design flat bottomed works well.
      good luck, john
    • Cod
      Should work. I built one, double ended, as a proa experiment. You can also sit and paddle with a double paddle. Whack-boing! It s dub! www.thecheappages.com
      Message 2 of 6 , Dec 2, 2012
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        Should work. I built one, double ended, as a proa experiment. You can also sit and paddle with a double paddle.

        Whack-boing! It's dub!
        www.thecheappages.com
      • Andrew
        Justin, have you seen the current issue of Woodenboat magazine, there is an article with design in there for a plywood SUP. I hired a plastic SUP the other
        Message 3 of 6 , Dec 2, 2012
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          Justin,

          have you seen the current issue of Woodenboat magazine, there is an article with design in there for a plywood SUP.

          I hired a plastic SUP the other week for the first time. I noted that it was completely flat on the bottom with three little fin skegs, somewhat like some surfboards. It was wide, I am guessing 30", and the width was carried fore and aft for most of it's length, making it more or less rectangular with rounded ends. This shape made for surprising stability and yet it tracked reasonably well. Windage was a problem - your body acts like a sail and it is hard work to paddle upwind - keeping straight up wind was much harder than down wind.

          I suspect the payson board is too narrow and tapered too much at the bow to be an easy SUP. I tried standing up on an old windsurfer board last year, about 24" wide but with tapering toward bow and stern and found it almost impossible. you need that stability if your going to stand up and raise the centre of gravity.

          That said, all of my family enjoyed the sUP.

          Andrew

          --- In bolger@yahoogroups.com, "jdmeddock" <jmeddock@...> wrote:
          >
          >
          > My wife wants a Stand Up Paddleboard, she has never used one and neither have I.
          > We could rent one at the beach next summer to get some knowledge, but that means a trip to the beach and I hate the beach... And I'm outta time.
          > I'm thinking I will build a Dynamite Sailboard hull for her for Christmas.
          >
          > Has anyone ever used a SUP and can you comment on important attributes
          > for a SUP and if Dynamite board may be useable as a SUP?
          >
          > I see CLC has a kit/plans for one that is close in length but a bit wider. CLC board has a shallow Vee bottom, so probably a wash stability-wise (or should that be awash ;-0)
          >
          >
          > It will just be for flat water lake use to start with.
          > If she likes it and wants one for waves I would probably buy her a "real" one later if the Dynamite board won't work in low surf.
          >
          > Justin
          >
        • jdmeddock
          Thanks everyone, Life got in the way and I didn t start on this yet. I hadn t considered the stability added by leaning against the sail rig! So maybe a
          Message 4 of 6 , Dec 19, 2012
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            Thanks everyone,

            Life got in the way and I didn't start on this yet.
            I hadn't considered the stability added by leaning against the sail rig!
            So maybe a double-bowed dynamite board with a 6" beam stretch with 6" square bow and stern transoms would be about right.

            I googled the Dynamite sailboard right after I posted the first message. I found a message I had posted here in 2005 with a proposal to use a double-bowed Dynamite board as a sit-on-top kayak.
            Craig replied with his comment about the double bowed proa float then too.

            Maybe in 7 more years I'll have a new Dynamite Sailboard based scheme.
            Maybe a water bike kiteboard or something.



            Justin
            --- In bolger@yahoogroups.com, "Andrew" <a.c.l.yen@...> wrote:
            >
            > Justin,
            >
            > have you seen the current issue of Woodenboat magazine, there is an article with design in there for a plywood SUP.
            >
            > I hired a plastic SUP the other week for the first time. I noted that it was completely flat on the bottom with three little fin skegs, somewhat like some surfboards. It was wide, I am guessing 30", and the width was carried fore and aft for most of it's length, making it more or less rectangular with rounded ends. This shape made for surprising stability and yet it tracked reasonably well. Windage was a problem - your body acts like a sail and it is hard work to paddle upwind - keeping straight up wind was much harder than down wind.
            >
            > I suspect the payson board is too narrow and tapered too much at the bow to be an easy SUP. I tried standing up on an old windsurfer board last year, about 24" wide but with tapering toward bow and stern and found it almost impossible. you need that stability if your going to stand up and raise the centre of gravity.
            >
            > That said, all of my family enjoyed the sUP.
            >
            > Andrew
            >
            > --- In bolger@yahoogroups.com, "jdmeddock" <jmeddock@> wrote:
            > >
            > >
            > > My wife wants a Stand Up Paddleboard, she has never used one and neither have I.
            > > We could rent one at the beach next summer to get some knowledge, but that means a trip to the beach and I hate the beach... And I'm outta time.
            > > I'm thinking I will build a Dynamite Sailboard hull for her for Christmas.
            > >
            > > Has anyone ever used a SUP and can you comment on important attributes
            > > for a SUP and if Dynamite board may be useable as a SUP?
            > >
            > > I see CLC has a kit/plans for one that is close in length but a bit wider. CLC board has a shallow Vee bottom, so probably a wash stability-wise (or should that be awash ;-0)
            > >
            > >
            > > It will just be for flat water lake use to start with.
            > > If she likes it and wants one for waves I would probably buy her a "real" one later if the Dynamite board won't work in low surf.
            > >
            > > Justin
            > >
            >
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