Yes, unexpected to say the least. The next step is to gather materials, then come up with a plan to shape the reducing foil section across the...
That works out to ~11.5 kg of timber core. Now that seems very realistic to me! ~ 15kg is about the target weight in an ideal world. Cheers Z
Thanks, @Tops, just got out of hospital. As soon as I can think straight, I will be back on the job.
Seems a little low when I work out the weight. I will get the add-on as suggested. Many thanks.
Aghhhh... sick as dog today so I will keep it brief. I'm trying to work out what an Oregon core (I think what we get as "Oregon" is in fact...
Does your CAD give you a volume estimate on that drawing? I'm considering some other materials and I want to get an idea of weight. Cheers Z
Yes, I think I will 3d print some templates. Getting the ex laminate shape is a little thought experiment. Reducing the cord until the thickness...
More worried about the foil section, getting it right down the ellipse. Is there a better way than by eye?
Any tricks for shaping the elliptical tip? I've only ever made straight foils before.
I've made some material enquires and as luck would have it I ended up talking to someone who has done a lot of rudders, including for my boat...
Yes, I have done this with deck fittings in the past when a ply core was involved. It's a good idea IMO. I think I might tape the edges first,...
Thanks. I might bag it, I have to replace some equipment to do that, so maybe not... the budget is tightening at the moment! I was looking at...
Thinking more about this, is there merit to putting a dense hardwood under the rudder gudgeons to take the localised compression loads I assume occur?
Thanks, I have to get my head around all of this stuff. I'm about 12 months into learning FreeCAD, my son wanted a 3D printer so we jumped into...
Thanks Yes, that seems to have worked. I think I can generate .dat files on that NACA foil website. Now I just have to workout how to use the...
