A slightly stretched version of the 37′ cat has been updated. It is being owner built at Betts’s Boatyard in Anacortes, WA. Foam/glass.
37′ Cat Update
Category Archives: Projects
Carbon Fiber Crosstubes Installed
When I ordered the carbon fiber cross tubes for my yellow 12′ trimaran, I assumed a modulus of about 16 million. And I speced the thickness accordingly.
I just got the spec sheet from the manufacturer.
8.5 x 10 to the 7th.
I checked with a scientist I know. That is 85 million.
That is more than 5 times the modulus. Wow.
They aren’t going anywhere.
Painted with Awlgrip clearcoat.
Sources
I stumbled on this list that I made years ago. It still looks pretty good. I need to study it carefully for changes but again it looks pretty good.
SOURCES
DECEMBER 28, 2012 KURT LEAVE A COMMENT EDIT
A big mess of sources. I worked on a lot of these during the last few trips. I imagine this kind of being crowd sourced where people will add to this as it goes along. Some to be added anyway, but getting it out for what it is now. I see it doesn’t let me hot up the links. To get hot links, put sources in the search engine and load the one from years ago.
A sources list now is different than it was when I first did the Construction Manual. Presently the best way to locate boatbuilding products is to go to the manufacturers website, and from there find the vendors in your local area. This list is pretty much for North America. And it leans toward products that I have first or second-hand experience with. Builders elsewhere, get me your favorites and I will expand this.
Epoxy
Mas http://www.masepoxies.com/
Noahs www.noahsmarine.com
System 3 www.systemthree.com
SP http://www.gurit.com/
WEST System www.westsystem.com
Fiberlay www.fiberlay.com
Jamestown Dist. http://www.jamestowndistributors.com/userportal/main.do
Fiberglass Supply www.fiberglasssupply.com
Vinylester Resin
Ashland Chemical http://www.ashland.com/products/hetron-epoxy-vinyl-ester-resin
Interplastic Corp http://www.interplastic.com/
Composite Fabrics
Fiberglass Supply www.fiberglasssupply.com
Fisheries supply www.fisheriessupply.com
Fiberlay www.fiberlay.com
Composites One http://www.compositesone.com/
VectorPly http://www.vectorply.com/
Core
http://corecomposites.com/media/CoreComparisonChart.pdf
Airex http://www.corematerials.3acomposites.com/
Corecell http://www.atlcomposites.com/products/cores/end grain balsa/index.htm
Divinycell (crosslinked PVC) http://www.diabgroup.com/europe/products/e_prods_2.html
Urethane General Plastics http://www.generalplastics.com/products/index.php?PHPSESSID=6ac3fdb313fb070a2d6a8f4d0f5eb4a4
Balsa http://www.corematerials.3acomposites.com/
Paulownia http://www.paulowniawood.com/
Foamular http://www.foamular.com/foam/
Fiberlay www.fiberlay.com
Nidacore http://www.nida-core.com/
Polycore http://www.polycore.com.au/
Plascore http://www.plascore.com/index.htm
Tricel http://www.tricelcorp.com/
Core Craft FRP Honeycomb http://www.infracomp.com/index.html
Vacuum Bagging supplies and equipment
Fiberlay www.fiberlay.com
Airtech http://www.airtechonline.com/
Plywood/Lumber
Anchor Hardwoods www.AnchorHardwoods.com
Edensaw http://www.edensaw.com/MainSite/Store1/Content/SiteContent/1/Home/Main.aspx
Meridian Plywood 1-800-743-1126 Lynnwood, WA
Noahs www.noahsmarine.com
Boulter Plywood www.boulterplywood.com
Joubert Plywood www.wolstenholme.com
Paint
Farwest Paint www.farwestpaint.com
Awlgrip http://www.uspaint.com/
Stirling http://www.scomar.com.au/Products/Coatings/CoatingsSterling.aspx
Rigging and Masts
Hall Spar
LeFiel
Plastics
Hardware
Fisheries Supply http://www.fisheriessupply.com/
West Marine http://www.westmarine.com/webapp/wcs/stores/servlet/TopCategories1_11151_10001_-1
Foamex
Outdoor cushions that do not absorb water. Dry-fast open cell polyurethane foam ideal for outdoor furniture and boat cushions. Five Year warranty.
www.foamex.com
I have bought some light samples from HollySolar http://www.hollysolar.com/
The watermaker store (http://www.watermakerstore.com In san diego has a watermaker (up to 1500gpd) with a 130A alternator on it, all based on the Kubota 6hp diesel which purportedly uses 1/8 gallon per hour.
Masts
Masts, Battens www.c-tech.co.nz
www.southernspars.com former omohundro 775-782-6788
http://ballengerspars.com/, often called the best mast builder
Sailing equipment www.layline.com
Synthetic rigging parts seen
at http://www.allspars.co.uk/precourt.html
Carbon tubes http://www.cstsales.com/
racing software and electronics
Marine computing international http://www.marinecomputing.com/
make a black box that allos wind and radar to be fitted on a rotating mast (Mike Golding on his open 60 has one)
Composite props www.kiwiprops.co.nz/home
electric outboards http://www.fischerpanda.de/cgi-bin/start.pl?task=content&folder=03_Whisperprop_Marine_Propulsion&sfolder=NULL&file=08_DE-Outboard.html&lang=eng
A Steerable diesel electric outboard: http://www.fischerpanda.de/cgi-bin/start.pl?task=content&folder=03_Whisperprop_Marine_Propulsion&sfolder=NULL&file=06_ADE-Saildrive.html&lang=eng
Steerable raisable electric drive: http://www.fischerpanda.de/cgi-bin/start.pl?task=content&folder=03_Whisperprop_Marine_Propulsion&sfolder=NULL&file=10_RA-DE_Thruster.html&lang=eng
The Azimuting Podded Prop: http://www.fischerpanda.de/cgi-bin/start.pl?task=content&folder=03_Whisperprop_Marine_Propulsion&sfolder=NULL&file=07_AZIPROP.html&lang=eng
Or these amazing drives http://www.fischerpanda.de/cgi-bin/start.pl?task=content&folder=03_Whisperprop_Marine_Propulsion&sfolder=NULL&file=12_General_AZIPROP.html&lang=eng
Plastic Mirror TAP Plastics Inc. www.tapplastics.com
Go to www.solomomtechnologies.com electric power
For nets
http://www.multihullnets.com/
http://www.nets-n-tramps.com/
http://www.net-sys.com/
http://sailrite.com/
window bedding techniques
http://www.sikasolutions.com/Marine/295.htm
Tools
Northern Tool And Equipment www.northern-online.com
Fax: 1-612-882-6927 Air tools, Auto, Engines, Generators, Gloves, Hydraulics ect…..
For info on LED lights www.Hollysolar.com
http://www.diyplastics.com/safetyglazing.htm
comparison table for plastics and other materials
http://www.machinist-materials.com/comparison_table_for_plastics.htm
Composite materials
http://www.uscomposites.com/
Noah’s Marine www.noahsmarine.com
A local Vancouver company, Kraft Industrial Supplies.
www.kraftindustrial.com Lots of other nifty pultruded shapes (I
confess I was surprised how cheap these things are).
I just had a meeting with a rep from TriStar Plastics Corp. This is the
plastics equivalent of a steel service center. They stock plastic, machine
plastic and will provide technical advice on what is best for a particular
application. Interestingly they make a wide variety of bearings which would
seem ideal for rudders etc. www.tstar.com
plastic boat sheds www.ClearSpan.com
Carbon tubes, start with these guys:
http://www.forterts.com/
http://www.csi-composites.com/
http://www.cstcomposites.com/
http://www.marstrom.com/
http://www.carbonfibertubeshop.com//index2.html
Engines
Yanmar
Styer
Caterpillar
Yamaha
Tanks
Haul-out
Builders
Profligate at 25
I CAN’T BELIEVE PROFLIGATE IS 25 YEARS OLD.
That means I’ve owned my modified Hughes 63 built by Dencho in Long Beach for one-third of my life and half my adult life.
Man, time flies.
If I had the money and desire, I’d build almost the identical boat, but in carbon.
It’s about the maximum size cat you can singlehand or doublehand.
Yet we’ve also taken thousands and thousands people racing and sailing on her.
Speaking of 25, that’s the highest number of knots we’ve hit. Once under working sails, once under spinnaker.
One time south of Cedros we had her going 21 to 22 knots for an extended time, not straining at all. Waterline and the perfect point of sail were the magic ingredients, even when overloaded with crew, gear and Ha-Ha stuff.
Love dat cat!
65′ Daycharter Molds Being Built in Roatan
A nice plug for the 65′ daycharter cat built by Roger.
48″ Day charter project
Hi! I’m starting the build of a kurt hughes design day charter cat to be completed spring 2022 in southwest florida. it will be a cylinder molded wood composite build. I’d like to communicate with anyone else who is currently building, or has built a similar boat. i’m a professional boat builder, having built and worked on several of kurts designs.
couple of questions:
- anybody have a suitable dagger board mold? or want to use mine when i’m done with it?
- any good leads for sourcing rudder shafting?
- if anyone needs uni or triax i have found somebody with a couple tons nearby (sarasota area). vectrix and very reasonably priced. let me know in the comments and i’ll post info.
10m power cat update
At the end of 2018 I posted a power cat hull build. Upon completion of the two hulls, they were picked up by the owners and taken home to Maine to build the crossbeams and cockpit, as well as fit engines, electrical, etc. I’m happy to report that the resulting boat looks spectacular, and the owner/builders say that the shakedown cruise went well, with a smooth dry 20 knots. stock props.
here is the link to the original post: https://multihullblog.com/building-power-cat-hulls/ and here is the link to the design: http://multihulldesigns.com/designs_stock/28cat.html
more salty cat
.
Salty cat is about to be splashed
Salty Cat
Pat’s 36′ KHSD daycharter catamaran is almost there. Beautiful workmanship.
Triman Amilee Steps Her Mast
My heavily modified 37′ trimaran had its mast stepped last weekend. Beautiful work.
