Thread: GIS - Sacramento

Was the leak at the chine? I couldn't tell from your pics if you had taped the chine or not.

Yes, the leak is at the chine. The chines are taped but only received one coat of epoxy - the weave is not filled. Apparently I need to check the bottom-chine fillets, too.

Looking good Bob! Congrats!

Bob, Karen Ann is a wonderful achievement, and you should be proud. Thanks for the great pics of what was clearly a wonderful day in the presence of good company. You couldn't ask for more.

Hello Bob,

She is looking good, floating in that special way the GIS does with her ends well clearing the water!

Congrats on a job well done. You must be very keen on getting Karen Ann finished now for her first sail.

Best wishes, Joost

Hi Bob, terrific to see Karen Ann afloat, must have felt great. As always Goat looks the business afloat, sooooo roomy as you sit at the rowing thwart.

You did it, well done!!!

Brian

Thank you all! Saturday was a good day and I am fortunate to have the support of my family and all my friends -locally and globally.

I am anxious to finish out Karen Ann and get her sailing. The list of tasks is long...

The Goat does sit high... seeing the pictures, a sailing buddy asked whether any part of the hull was actually touching the water...

So, now I turn to finishing the hull, building the spars (mast, yard, and the Mk II box boom), and building the oars.

I just received a set of pics from one of the guys attending last Saturday's launch. I'll sort through them but thought I'd share this one right away.



More pics later...

I'm looking at a trailer in the morning so things are coming together for me.

Yesterday was a busy day.

I went shopping for materials for the mast.

Option No. 1: Two 2x4x18', clear vertical grain DF, rough cut, needs to be resawn, thicknessed, and surfaced to size, $104


Option No. 2: One 4x4x20', #1 construction grade (decent grain, a few small knots) DF timber, needs to be resawn, thicknessed, and surfaced to size; $21 (that's the total price)

Option No. 3: Two 2x4x20' species unknown - definitely not DF, (probably a pine similar to what I got for the gunwales and inwales), needs to be resawn and thicknessed to size; $18.

The 18' length on the DF is to make sure I've got 16' for the mast. Those 2x4s would be resawn and thicknessed to 1/2". The 20' timber or 2x4s would be cut to 17' to make transportation easier.

I'm waiting to hear back from my friend with the shop before deciding which way to go. If his is comfortable milling that 4x4 timber, I will probably go with that.

I also bought a trailer. A trailer has been on the "list" all along, but borrowing a trailer last week was a big reminder. I've been watching Craigslist but nothing really suitable came up until Tuesday. A reasonably priced, galvanized trailer for a 12'-16' boat. I called the guy on Wednesday to make arrangements to look at it yesterday. Short version of the story: I bought it.



I need to install bunks to fit the Goat, but I think this will be a good trailer for my needs.

It's very difficult to predict what will happen when you re-saw thin planks from very thick beams, or even 2-bys. Re-sawing will release tension and you can get bad twist, cupping, and a host of other things.

On the other hand, if you're starting from 3/4 inch thick boards milling to 1/2 will not give you nearly as many surprises. If the boards were flat and straight before hand the odds are your 1/2 inch boards will be too.

Bob,

You could take the 4X4 and make a solid mast. I wouldn't recommend it, though. Ours is a solid mast, and - if I had it to do again - I'd make a hollow mast. Probably a birdsmouth. Don't forget you've got two other spars to build as well <G>

What MAM says about releasing internal stresses is true. I've found it to be less true for douglas fir than for many woods, however.

It was a pleasant surprise to open DuckWorks this morning to find a mention of my GIS.

Duckworks - March Reports

I had emailed Chuck with a question. After answering, he asked how the project was going. My response is in the March Reports.

Maybe I should send Chuck pictures from the launch.

I think so ... give him a link to your blog too. Also I think that bit you wrote a little while ago about building up confidence in boatbuilding was sensational.

MIK

Question re backing plated for the rudder hardware...





The backing plate will measure 50mm x 200mm. Will 6mm ply be sufficient as a backing plate for the through-hull fasteners used to install gudgeons to the hull? Or, should I use a piece of 25mm hardwood?

Thanks.

I don't know the "right" or "best" way but here's what I did: I used two extra layers of 6mm ply for the bottom gudgeon (one slightly larger than the other) and a single layer of 6mm as a backer to the upper one. My thinking is the bottom one is much more highly stressed but I've been wrong before....let's see, I think it was about 12 years ago.

Here's what they looked like at the bottom:



The single top plate is the same shape but flipped 180 degrees so it looks like a keystone.