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17018Re: Toto question

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  • Bryant Owen
    Mar 1, 2008
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      Just a reminder. As drawn by Jim, the only flotation chamber is
      located in the stern.

      My .02. Adding a bow flotation chamber - as many have done - should I
      suspect, double the flotation.


      --- In Michalak@yahoogroups.com, "captreed48" <captreed@...> wrote:
      > > Toto as designed has 180 lb floatation.
      > This is the volume of the flotation chamber in cubic feet times the
      > weight of water in a cubic foot. 180 lbs floatation would float the
      > weight of the boat if swamped. Subtract the weight of the boat from
      > 180 and you might get 120 lbs. The normal life jacket has 22 lbs of
      > bouyancy. So, the floation in the boat might keep the boat plus 5
      > adults in the water alongside of it afloat, all of them wet and
      > My Piccup Pram has about 760 lbs of floatation, so if it were upside
      > down I could put 3 adults on the bottom and we would all be completely
      > dry...that is if we could get out of the boat and onto the bottom
      > without getting wet.
      > This is different than the displacement which is the weight of the
      > water that the boat displaces. If you take the normal displacement
      > given on a set of plans and subtract the boat weight you have the
      > weight of allowable crew and supplies. e.g. My Piccup displaces 490
      > lbs. Subtracting 100 lbs boat weight gives 390 pounds of crew and
      > supplies. Or 2+ adults. I've had 4 adults in it and it is slow, but
      > sails fine that way.
      > Jim gives his expected displacement on his plans at the waterline at
      > the bow.
      > Whew. That's a lot of words when you already have your question
      > answered. Sorry. I just got started and couldn't stop writing.
      > Reed
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