Since I just installed this scanner, I might as well use it. My 31′ x 24′ home for a while in the early 80s.  The 4 hp outboard would push it at 6 knots.

Back in the 80’s I noticed that sometimes when bagging a CM panel on the mold, the part only touched at and near the front of the mold. Especially with stiffer plywood. We would put pipe or 2x4s on the top to press it down.

Eventually a lightbulb went off in my head.  Why have parts of the cylinder mold there that are not always being used?  I did one hull that way but about then Charles at Multihulls published my first design and I have been scrambling to keep up ever since.  It never got puttered-with nor published.

Its not that big a thing, it just saves plywood.  The hold-down gutter is the same.  A lumber runner along the bottom of each tiny station keeps the mold from tipping over.  And by ajusting the angle of the stations, more possible hull sections are possible.

With this mold system, the exact same type of plywood must be used on all of the panels in a particular hull.

First, a comparison with both types of CM.

Next, zooming into the Airmold.  Showing with both a panel on and off of it.

It seems that I wasn’t paying attention to where the flow was going and the in-flow bumped me up to another bracket. I just noticed.
How does a 20% discount on all stock plans this week sound? And 10% this month?

The shopping cart does not allow discounts so I would have to refund you after.  Or get card number to me directly, paypal directly, or I can send wire information.

I have put the newly created CM Female Molding graphics into a construction manual of sorts. I will make it available at the website soon. /pdf to get to all of them.
It only has computer graphics at this time.

I just installed a great scanner in the office and I will be scanning the photos of the applicable multi builds to also be added to the manual.
I have also come across an armload of back when pictures that I will post.

What it says.  This turbo version has ama boards and rudders.  CM developed plywood with carbon mast sections for beams.

A proposal I just did for a 65′ fishing cat. It would be based on the 65 ferry. In CM plywood/epoxy hulls and ply/core/ply flat areas.

I will be out of the office from M14 through M23. I will have the workstation with me and should be able to catch up on some 3D modeling.  I should have email where there is WiFi.
Anyone have any projects in Iceland or Scotland that I should look at?

Wandering back from the post office after shipping a plan set I saw this interesting 4×4 van.     It was painted Stars and Stripes blue with Stirling 2 part polyurethane paint.
It is also a tiny house for ronin boat builder James Moreland.
Bed across the back. Galley on starboard. Office on port.  Call him if you need help on a boat project.  Hit him at 206 380 7094 if you need help on a project in PNW.
Glad to meet him.

Back. A few of the plans of the 42 daycharter cat sold last week. It needed conversion to metric and some of the hand drawn parts converted to CADD. Thats done. Back at it next week on this blog and the custom projects.

You surely remember the broken lumber A-frame shown recently here on the 42 daycharter cat.  The owner chose to replace and update with a standard alloy tube and wire system.
My worst fears about MSC came true.
I submitted the stock, stamped, original plan sheet to MSC.  I also submitted an 2017 version with the same section properties or better.  Keys Rigging submitted the proposed with extra strength on all items.
It was rejected. They wanted the calculations also.  Done. Those were rejected until I would explain how I did my calculations. They did not have a standard to aim for. In fact I was asked to explain what the relevant factors were.  It has been almost 2 weeks of back and forth now. My fear that nothing that was settled “law” before, is now.
I have probably done a hundred of these, and I bet Keys Rigging has done that many also, or more.
I also get the feeling that they are stressed and angry at MSC. Maybe Trump chaos has hit there also.
This is one part of why no postings last week. Deadlines also. Next week will be better I’m sure.