The Boat Design & Boatbuilding Site
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Ttropostudio replied to the thread Xflir5 is telling me as chord length reduces and the reynold number drops drag goes up..@Urepedese - the thread has moved away from your original question(s) into talk about materials and fabrication, which is applicable...
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Ttropostudio replied to the thread Xflir5 is telling me as chord length reduces and the reynold number drops drag goes up..If you already have the 3D printer going, I'd recommend looking into using it to make molds for composite foils. If you could iterate...
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Ttropostudio replied to the thread Xflir5 is telling me as chord length reduces and the reynold number drops drag goes up..A boat 7m long that makes ~10km/hr or 6.2 mph, with or without foils attached. Was the boat foil-borne with them attached? You didn't...
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Ttropostudio reacted to Urepedese's post in the thread Xflir5 is telling me as chord length reduces and the reynold number drops drag goes up. with
Like.
Nothing new under the sun aye? (Well very little, I do have my name to a couple of patents). Your response has been useful. I was... -
Ttropostudio replied to the thread Xflir5 is telling me as chord length reduces and the reynold number drops drag goes up..I think you are interpreting the XFLR results correctly from the standpoint of corrlation between graphs. As to whether the results will...
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Ttropostudio reacted to luckystrike's post in the thread Looking for a Low-Cost Easy to build multihull sailing design with Like.
Sorry Redreuben, but (imho) I do not consider a Scarab to be an easy build. There are way too much planks to cut, fit, glue and sand...
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Ttropostudio reacted to fallguy's post in the thread Polypropylene honeycomb panels for hull construction? with Like.
They erred. When building pp core panels; the edges must be prepped. This means, for tabbing; you would first add a solid core...
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Ttropostudio reacted to Remmlinger's post in the thread New VPP based on Numerical Modeling with Like.
Thank you, Mikko for doing such a deep dive into my program! Theoretically, it would be possible. I use XFOIL to determine the...
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Ttropostudio reacted to Mikko Brummer's post in the thread New VPP based on Numerical Modeling with Like.
A truly impressive job Uli, UliSpeed is indeed in the masterclass among VPPs. From the manual I read the UliSpeed cover "5-DOF", or 5...
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Ttropostudio reacted to rxcomposite's post in the thread filling holes in an unstayed carbon mast with Like.
It is a complex issue. Attached is my study on mast design covering wood, carbon fiber, aluminum. Sorry, it is a preliminary before the...
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Ttropostudio replied to the thread filling holes in an unstayed carbon mast.Sounds like OP has gotten a recommendation and OK for a repair procedure by the designer/manufacturer. Signifigant credibility there. My...
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Ttropostudio replied to the thread filling holes in an unstayed carbon mast.@rx composite - Curious if you think the OP's holes are only a compression issue. @jhardiman, in post #15 figures it's only a...
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Ttropostudio replied to the thread filling holes in an unstayed carbon mast.Sounds like @marlinspike has a fix approved by the mast desgner/builder that saves the hassle of laminating a custom plug! Good luck...
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Ttropostudio replied to the thread filling holes in an unstayed carbon mast.I'm going to disagree with you a bit here, @fallguy. According to OP, Ted van Dusen recommends as first half of the fix that a tapered...
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Ttropostudio replied to the thread filling holes in an unstayed carbon mast.From the above, it seems Ted van Dusen is suggesting a repair that will address compression and buckling concerns with the tapered...
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