[quote=texastuma][quote=benedikt]Texastuma - I like the idea of the tornado general hull shape with inverted wave-piercing bows. About the scaling of an Infusion - I am looking for a boat somewhere in my vicinity and thought the blog could help me on that! About the AutoCAD, I am better at using MaxSurf (although I haven't used it now for a few years), so I will use that for the hull design, coefficients and stability calcs. Tell me more about the Inverted Tornado idea?
Thank you in advance. Best, Ben[/quote]
For the inverted bow Nader, I have it as a concept in my head; no real buoyancy calcs, just experience of what could to be improved. I did see a H21 with inverted bows added.. I haven't sailed it, but would be willing to. Before you start designing, I would recommend you sail a few of these suggestions to get some experience of what can be improved. And, I mean sail them hard... aim to hit speeds over 25 knots. I originally envisioned a tear-drop hull shape similar to the Nacra 5.8 or 6.0 with the bottom third of the hull the widest point. But, having a sharp bow helps in the high speeds. I would look at making the deck rounder forward of the front beam; it eliminates some weight cutting the edges off but it also would help in the cases it does go under at speed. I would look at flattening the exit at the stern waterline. In medium speeds, the stern may skid around a bit with waves, but I think it would hit second gear sooner.
This is all concept in my head as I rather use what I can find and get on the water.[/quote]
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