I understand that the USCG stability rules are catching up with the increasing girth of Americans. The official passenger weight for COI boats is to go up from 160 lbs to 180 lbs as I understand it. For monohulls, that can be a crisis. For catamarans, it will not actually change the stability at all. I expect that everybody will need to revise their stabilty calculations and stability letters. I have spreadsheets ready and can do that for everyone who needs it.
Related, I can’t believe that with all the budget cuts, a plans submittal and inspections for a COI vessel is still free. Where else can you get a building permit for free? I can’t imagine it will be free for long. Submit those COI plans soon.
The first Earthwise ferry is nearing launch at Lake Victoria. See http://ewventures.wordpress.com/ I worry about the weight and crossarm revisions, but its almost wet. It is cylinder molded plywood/epoxy vacuum bag design, though KHSD is never noted as designer.
Upgraded the video on this a bit: The layup on a 68′ cylinder molded hull currently under construction in Roatan: it’s speeded up quite a bit, this is about 25 minutes of real time. the half hull panels are approximately 11′ x 71′ – 4 layers of 3mm plywood and 33 gallons of epoxy.
I got to go sailing with Barry and Karen, the owners of Sarabi earlier this month. Sarabi is a KHSD 56 catamaran with an Aerorig. See http://www.multihulldesigns.com/designs_other/56aerocat.htm for more pictures. Its a fast, safe cruising machine. I enjoyed their stories about sailing in “aquarium mode” through green waves, or closing on monohull friends so fast at night that they were mistaken for pirates. She looked great for having done most of a lap around the Pacific. Thanks you two. It was a fun sail.
CSR Marine on Northlake Ave here in Seattle will be gone by the first of November. CSR has been a fixture there for some 25 years. They were not only the best, but they hauled out multihulls. And they owned the legendary trimaran CHAAK. Its almost like the space needle moving. They will have their two smaller locations near the locks and at Des Moines.
I have heard from several sources that the Puget Sound Waterkeepers threatened them and many other waterfront businesses with ongoing lawsuits unless they left. Or, I heard, they could pay protection money and stay. I will be finding out the other side later thi
I have worked in and with many boatyards over the years. I have never seen a more contentious boatyard with the environment.
I support the Greenpeace and all, but this seems wrong to me. I will get to bottom of this soon. CHAAK's last haulout below.
I got a bit behind on this blog when the computer went down then I got hit with serious deadlines. I'm back and there is a lot going on.
First, I got another great youtube video from those wildmen in Italy with my 24' trimaran Muffalo. See
I just got Makita 2.5 hp compressor (MAC2400). It keeps up with my volume spray painting and is quiet. Odd thing is I bought its evil twin a few years ago. A Master Power MPAC521, which looks almost the same. It was frighteningly loud, could not really keep up, and filled the garage with smoke. After only about 30 hours of work over the last 3 years, it finally could only produce about 20 psi.
What a relief it is to have the Makita.
The KHSD daycharter catamaran Alii Nui is shown in an ad on page 115 of Professional Boatbuilder. It was built by Schooner Creek of Portland, OR and operates out of Lahaina, Maui. See http://www.aliinuimaui.com/
Another cat featured with no designer listed.
IBEX is next week in Louisville, KY.
I guess I will be skipping IBEX this year. It was great last year, but half the draw was being in Florida. Besides too much work here to take a week off. See http://www.ibexshow.com/
I knew that the PVC and SEN foam cores we use to build boats had some thermal insulation value but I didn’t think it was as good as house construction insulation foam. At the Fiberlay design conference I learned that it is almost as good as the insulation foams. For example 90 kg Airex is 0.24 BTU.in/sqft.hr.F which comes to R 4.2 per inch. Craig Riley tells me that the PET foam gets wildly even better results when in a vacuum.
Kurt Hughes on Catamarans, Trimarans, and Boat Design