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#11
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Morgan Ohlson wrote:
The problem, at the moment is more about wich sails may be put together combined with a reasonable home made mast (tube-GRP) A stiff mast in GPR will weigth to much or be too bendy, glass is just too elastic for that purpose. If you want to build the mast yourself, I'd try a wood/carbon/epoxy setup. Wood for ease of construction (otherwise you need to make a mandrel/plug first) and for compression, carbon for stiffnes and epoxy to glue it all together with some margin for error. besides, I'd go fo a balanced lug for ease of handling. Just one sail, relatively easy to make and no long spars or mast needed. You wont get a high aspect ratio with it, but you should not strive for that on your boat anyway. -- vriendelijke groeten/kind regards, Jelle begin msblaster.pif |
#12
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On Thu, 14 Oct 2004 14:37:36 +0200, Jelle wrote:
Morgan Ohlson wrote: The problem, at the moment is more about wich sails may be put together combined with a reasonable home made mast (tube-GRP) A stiff mast in GPR will weigth to much or be too bendy, Which radius are you talking about? Here is a homie GRP-mast for a Roamer http://www.geocities.com/Yosemite/3387/index.htm glass is just too elastic for that purpose. If you want to build the mast yourself, I'd try a wood/carbon/epoxy setup. Sometimes more expencive stuff is better. Probably it is in this case. Wood for ease of construction (otherwise you need to make a mandrel/plug first) No there are plenty of other ways! and for compression, carbon for stiffnes and epoxy to glue it all together with some margin for error. besides, I'd go fo a balanced lug for ease of handling. Just one sail, relatively easy to make and no long spars or mast needed. My good, stop that romantic mumbo jumbo! ....and, why the **** should anyone invest in hours of building a carbon-combination and for a lug? Yes, yes... buy carbon fibers and build a garden trolly ;o) Actually, I'm quite convinced that you are trying to pull my leg. You wont get a high aspect ratio with it, but you should not strive for that on your boat anyway. Huh! ....naturally there was no argument for that last part ![]() Morgan O. |
#13
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Morgan Ohlson wrote:
On Thu, 14 Oct 2004 14:37:36 +0200, Jelle wrote: Morgan Ohlson wrote: The problem, at the moment is more about wich sails may be put together combined with a reasonable home made mast (tube-GRP) A stiff mast in GPR will weigth to much or be too bendy, Which radius are you talking about? none specified by you. Here is a homie GRP-mast for a Roamer http://www.geocities.com/Yosemite/3387/index.htm And what a real succes it was! did you see the picture where they determined the mast bend? That is what gave me the impression that GPR is too bendy. glass is just too elastic for that purpose. If you want to build the mast yourself, I'd try a wood/carbon/epoxy setup. Sometimes more expencive stuff is better. Probably it is in this case. Sure if you have the money and the experience. As a novice I'd keep it simple. Wood for ease of construction (otherwise you need to make a mandrel/plug first) No there are plenty of other ways! Please enlighten me, because i have not found any descriptions of anything other yet. and for compression, carbon for stiffnes and epoxy to glue it all together with some margin for error. besides, I'd go fo a balanced lug for ease of handling. Just one sail, relatively easy to make and no long spars or mast needed. My good, stop that romantic mumbo jumbo! so you want a long spar and difficult to make sail? I don't see much romantic in any type of sailrig ...and, why the **** should anyone invest in hours of building a carbon-combination and for a lug? Because a lug has one side free of an obstructing mast spoiling airflow (two if you dip it). If you are making that mast yourself anyway, why should you not include a handfull of carbon tape in it? Sure a pure carbon wingmast with a high aspect sail is very efficient, but I don't think most novice builders can pull that off. Yes, yes... buy carbon fibers and build a garden trolly ;o) Actually, I'm quite convinced that you are trying to pull my leg. If that is how you react to people with a different opinion, I pity you. You wont get a high aspect ratio with it, but you should not strive for that on your boat anyway. Huh! ...naturally there was no argument for that last part ![]() Novice sailor, (age?) not racing, practical transporter. I cannot see a need for a super efficient rig, and I do see some reasons why you would want a simple rig. (I see no reasons for that super light hull too, for that matter, you're even planning on an outboard and waterballast on it too!) But hey you dreamed it up, so you must have a logical explanation for it I am sure. -- vriendelijke groeten/kind regards, Jelle begin msblaster.pif |
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