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I have been considering how to have a rudder structure that more easily allowed telescoping or collapsing beams, but was concerned about the torque loading on...
Hi, I finally got hold of a copy of Dave Gerr's "Elements of Boat Strength", which looks to have lots of good information, but it states that is really is not...
-This seems too much glass. Maybe that on the bottom, but the rest about half that except maybe between the beams on the lw hull. The rest of the boat has very...
Just thought of a big benefit of being double ended for the trailerable harrys after hearing some rather colourful language at a boat ramp. You can simply sail...
G'day, Today I went for a sail on Doug's harriette and Sidecar, his highly modified Elementarry cruiser. Doug towed harriette up from Mandurah behind Sidecar...
Robert, I am just taking from Dave Gerrs book, which is for power and sail, so he isn't particularly concerned with sailing loads. I calculated based on a 50' ...
G'day, I have not read Gerr's book, but he is highly recommended. According to our engineer he is way off. One layer of 600 inside and out, doubled up on the...
I was wondering about the side loads and compression loads on the long lee bow and whether some extra is needed for these. ... unstayed masts. ... Strength", ...
G'day, It is not that long (25% of the boat length), and apparently does not need any more than it has. On Solitarry, there is a couple of 100mm wide 450 gsm...
-Fair enough. Probably wouldn't hurt to have a small rubbing strake for cosmetic protection. I can't see that the ww hull would need any more than 450g +/-45...
Hi, I don't know if anyone is watching the KSS forums, but I got Derek to give a little more detail on the test he did where he sees water infiltration into ...
I'd say this is not an accurate test. Boiling the cells creates excess pressure, which eventually will find a way out. Putting the now hot honeycomb into cold...
Oh, and while this may be redundant for most on the group, I thought I'd add a comment on sealing techniques for anyone who hasn't been using them. There are...
Hi, I am also drifting a little from the topic, but how do you join full sheets of honeycomb when making a big panel? Do you route out the edges and epoxy in a...
Hi, I don't think the test is particularly scientific, but I would be interested to try it myself, although I don't think that boiling the water is quite ...
That sounds like a good compromise. Use each material where its strengths will matter the most. Since I won't be making my own hulls, I don't care about the ...
-I have been thinking of that also. Whatever you do will make some kind of discontinuity. I would simply butt them up possibly with hot glue providing you have...
G'day, I butt joined them, which worked ok, but when I applied some serious load tring to compound the hulls, they cracked along the join. Should have ironed...
Hi, I have been comparing specs and prices on core materials, mostly corecell and nidacore (can't find a place to buy polycore in the US), but I just looked...
Divinycell is a swedish product, widely used among boatyards in scandinavia and around the world. We used it on our boat, cant complain. Airex has better...
Hi, Actually I am currently planning on using Airex for the keels, since the R63 is "flexible", but I have never seen it. I did finally reach the company to ...
Hi , I would not bother using Airex for the keels. It is possible to bend Divinycell using heat gun, or cutting grooves on to it. I recall Divinycell is 2/3 of...
Hi, I think it has been about 6 months since Rare Bird was sold. Any updates from the new owner? Videos? Sailing speeds/conditions? Polar diagrams? Photos? ...
Do you know if the owner is on this forum? Hope he chimes in. I would recommend that you hire him as a spokesperson, except that might cast doubt on any...
G'day, i don't think the owner is on this list. He asked me to race to Gladstone (start easter Friday) back in October. There is another harry possibility...
Hi, Â got away from Perth, after off loading harriette to Rob, how was the kids' sail Rob?, and spent a day at Rottnest. Got back into the coast at Ocean...
