Rave

I always appreciate the rave. Makes the slog worthwhile. Ralph is building a 43 tri.
“Kurt,

Thanks, and thanks for your time on the phone.The boats you have designed are the answer to everything one could want in a boat: ease of build, cutting edge technology, excellent safety and sailability, and very important to me: the ability to build remote to launch site.

The video is priceless.

Ralph “

January 27th, 2012  in Design Questions No Comments »

Bi Plane Rig from 3 Years Ago.

bi-plane rig

In 2009, a client with one of my 46′ charter cats had a low bridge to deal with. And he had some extrusions lying around that he wanted to use.  Both rotating, and deck stepped.

Before the rig was built, he got another location to use the boat. Unusual arrangement, but workable. I think an unstayed rig would have been better.

January 26th, 2012  in Design Questions No Comments »

Neat Anchor System

When I visited Barry and Karens’ Sarabi (56′ KHSD catamaran), they showed me how they prefer to handle the anchor. No load from the anchor on the bow tube at all. They pretty well tested it during their lap around the Pacific.  The anchor and chain roll through the bridle and roller.  Bridle is attached to the forebeam foundations.

 

windlass and chain locker

 

 

anchor hatch

January 25th, 2012  in Design Questions No Comments »

Back From the Snow

Seattle got 6″ (150 mm) of snow last week. The city basically shut down. The printers were closed. It’s gone now. Everybody’s study plans will go out this week.

January 23rd, 2012  in Design Questions No Comments »

New 75′ Trimaran Design

I have had my head down again for the last couple of weeks getting the new Kai Oli Oli bid set done rush. I did manage to start on the new 75′ trimaran for Mark in Belgium.  Foam/glass and foam/carbon.

January 21st, 2012  in Design Questions No Comments »

Water/Holding Tanks

Some sources for plastic water and holding tanks.
http://www.ronco-plastics.com/ and
http://www.kracor.com/index.html

January 2nd, 2012  in Design Questions No Comments »

Kamanu 36

I stumbled upon this picture of Kamanu, my first USCG certified catamaran design. This fog is the volcano, I was told. I designed her in 1984 and she is still going out every day in Kailua-Kona, Hawaii.  CM epoxy/plywood.  The head is tucked in a nacelle under the mast. Always one of my favorites.

December 23rd, 2011  in Design Questions No Comments »

Power Tri Design for Goa

Did this 32 power charter tri for Goa. Trying the tropical corrugated metal look, but in composite. Seats 16.

December 23rd, 2011  in Design Questions No Comments »

Coast Guard is still at it.

I had assumed that once the December 10 deadline for the heavy passenger revisions was met, the thing was over. Wrong.

Two things are happening. First, local OCMIs are pulling passenger counts on guys who submitted on time, but don’t have the results back. If that happens to you, contact me. I will fix it.
Next, they have decided to go after the connective beams on almost every vessel, apparently. The thinking seems to be that if the cat was certified originally at X weight, and the weight goes up, the beams must be in danger. They must assume we only have a safety factor of 1. All my beams have safety factors of between 4 and 6. I guess I have to show my work again and write cover letters explaining it. So much for getting leaner.

December 23rd, 2011  in Design Questions No Comments »

Shopping Cart Fixed

The shopping cart is fixed now. Amazing that I’m apparently on the cutting edge of that now.

December 23rd, 2011  in Design Questions No Comments »