Solgato - The extra line that Lars sugests should hold your mast spanner up and if that gives you the right mast rotation I would say that's all...
You are right Al, if we knew the pressure field we would not need to work out the velocity field to get the lift vector. But as you say,...
David I thought this thread is about steady state irrotational flow of an incompressible fluid over an aerofoil (or hydrofoil maybe). But the...
David - The changes in pressure and the changes in velocity are two related effects that happen together. We are considering steady state flow,...
I have not looked at this section of boat design forum for a while so I have just come back to it and found this incredibly long and rather...
Next Saturday evening, December 11th, at 7:30pm, Steve Goodchild is giving a Zoom presentation about his building of a 'Stornaway' 16 foot...
The Amateur Yacht Research Society (AYRS) has been holding monthly Zoom meetings for the past 12 months or so. All AYRS meetings, both on-line...
The Amateur Yacht Research Society is holding a Zoom meeting about the current America's Cup contest this Saturday, 14 November 2020 at 19:30 UK...
There are a few points in AdHoc's recent posts that I could comment on but I think the main thing he is saying is that cross beams for multihulls...
The torsional moment on the hulls does increase towards the ends of the craft but we are considering the cross beams. Assuming that the hulls are...
These beams are loaded in bending so torsional strength and stiffness are largely irrelevant. Indeed, for this particular type of craft a degree...
Coming late into this thread – haven’t been looking at Boat Design Forum for a few weeks. I take it that it is now agreed that an all composite...
Glad you liked the talks. A link to the recording of the first of Bernard Rhodes talks:...
Yesterday evening (evening in the UK that is), Bernard Rhodes gave us a fascinating talk about how he designed and built a small plywood trimaran...
The Amateur Yacht Research Society (AYRS) is now holding meetings to present and discuss boat design topics using the Zoom video conferencing...
Interesting that the sailplan appears to show inner forestays but the photographs show none, and indeed I would not think it feasible to have...
Nice concept. Straightforward rig. Hope its self righting with a good margin. I was a bit puzzled that it says twin daggerboards downwind when it...
In that case perhaps the autonomous boat should be fitted with active AIS (both transmit and receive) and maybe also a radar transponder. Cost...
I would think that would be an interesting project for an electronics engineer, but I am not one of those. I am not all that well up on the...
