Perry Sliver Class Day Sailor

us7070

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the blog post says you are using a Farr 40 rig.

nice rigs, but in my experience, they have huge rig tension, compared with cruising boats.

i think most boats have a hydraulic jack to get the tension.

i'm not a rig expert..., is it likely that the rig really _needs_ the high tension to stay up, or at least to work well?

are you planning a jack? maybe it's not needed if you are just going to set it high, and leave it, but i hope you know someone strong...

or, are you thinking you can use it with less rig tension?

 

kimbottles

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the blog post says you are using a Farr 40 rig.

nice rigs, but in my experience, they have huge rig tension, compared with cruising boats.

i think most boats have a hydraulic jack to get the tension.

i'm not a rig expert..., is it likely that the rig really _needs_ the high tension to stay up, or at least to work well?

are you planning a jack? maybe it's not needed if you are just going to set it high, and leave it, but i hope you know someone strong...

or, are you thinking you can use it with less rig tension?
We got the jacking mast step with the rig and you should see the SS keel grid Tim designed all tied into the rig via the chainplates. The grid is also tied into the structual interior of the boat (bulkheads, berth flats, berth fronts, stringers, etc.) so that the stress is off the hull where the keel attached, (hence the keel pan that shows up in some of the pictures.)

Tim Nolan and Jim Franken have engineered the boat to be very strong and for the rig to be able to be tensioned. That all said I do not plan on putting super stress on this vessel, rather we will tension her up to some reasonable level consistant with her being a day sailor and not a grand prix racer. I suspect we will leave the tension at some rational level and not play with it too much. (But the option will be there to explore various different levels of tension.)

As a day sailor we do not need to wring every last bit of performance out of her. We hope to find a nice happy medium setting that offers good sailing without overdoing the stress on the vessel.

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us7070

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I understand.

I was just wondering if the rig would be ok with less tension than farr 40's run.

but it seems you have it under control.

it's a great project!

 

kimbottles

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I understand.

I was just wondering if the rig would be ok with less tension than farr 40's run.

but it seems you have it under control.

it's a great project!
That is an interesting question that I will take up with my sailmaker friends. The vessel is designed to take plenty of tension so we can always crank it up if necessary.

One fact that surprised me was how stout the Farr 40 mast turned out to be. That is not a light weight little guy at all!

(Still searching for a Farr 40 Boom, boom vang and mast jacks.............I have followed all of the leads you guys have thrown at me so far, so keep them coming, Thanks!.........)

 
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kimbottles

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Russell, Jordan, Bruce and the foam for the cabin top.

The project is now branching off into several direction: fairing and sheathing the interior of the hull, laying out the deck project, getting ready to make interior pieces. We got lots of activities right now.

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kimbottles

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In the hull classroom as Bruce explains the next step on fairing and sheathing the hull to the current group of students.

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kimbottles

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Right side up and no frames or molds, now you can see what the volume looks like.

Walking around inside of the hull was an interesting experience, she looks so big from the floor but once you get inside she become a cute little daysailor. Not much more volume than my Swede 55. Her size turned out exactly like I had hoped it would.

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kimbottles

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More sheathing material showed up from Composites West while I was there today.

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kimbottles

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Too bad we will be covering up the strip planking. But the narrow strips are kind of busy looking and a nice soft interior color will be more peaceful anyway.

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kimbottles

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Looking good!

What is the hull/deck joint going to look like?
I don't have Tim's drawing here but the one piece deck/cabin/cockpit will sit on a "shelf" that is triangular and attached inside the hull at the sheer and there will be sheathing both in and out. Not much chance for a leak.

We have a ways to go before we get there buit it should make for some interesting pictures.

 

sculpin

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Looking good!

What is the hull/deck joint going to look like?
I don't have Tim's drawing here but the one piece deck/cabin/cockpit will sit on a "shelf" that is triangular and attached inside the hull at the sheer and there will be sheathing both in and out. Not much chance for a leak.

We have a ways to go before we get there buit it should make for some interesting pictures.
OK, I'll wait here for pics! :)

When we built a strip planked boat (an order of magnitude smaller) we laminated a band in at the top where the joint would be, it was part of the framing before we started putting the strips on.

 

us7070

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The boat is beautiful..., but doesn't the keel box need to have a grid to distribute the loads?

or is it just not done yet?

 
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The boat is beautiful..., but doesn't the keel box need to have a grid to distribute the loads?
There is some sort of extensive stainless steel grid going into this boat to support the keel (and rigging?) loads. I don't think kimb or Bob have posted drawings of it but we may get to see it fairly soon as it might have to go in before the interior structural bulkheads are installed. Or not.

 
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Bob Perry

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7070:

Of course the keel needs a grid to support it! It will be a s.s. steel weldment that will attach to the settee fronts and the bulkheads.

 

Soñadora

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Just curious, are these students going to find jobs in this line of work? What's the market look like? I think it would be awesome to build boats. Then, of course, knowing me I would think it would be awesome to be a computer programmer.

 

kimbottles

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7070:

Of course the keel needs a grid to support it! It will be a s.s. steel weldment that will attach to the settee fronts and the bulkheads.
The SS keel grid is quite something to behold (designed by Tim Nolan). I will see if I can get one of Jim Franken's drawings to post. We start working on it in a couple weeks. As Bob notes it ties the entire boat together via the composite interior pieces (berth fronts & bulkheads) to distribute the loads.

I tried to argue that we could do it in wood but once I heard Tim out I came to realize he was right. I chose SS to make it easier on future maintenance.

 

kimbottles

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Too bad we will be covering up the strip planking. But the narrow strips are kind of busy looking and a nice soft interior color will be more peaceful anyway.
Kim,

What's the standard for the interior fairing? Going for "essentially smooth" or "very fair"?

She's looking very sexy.
The School teaches craftsmanship, so they are going for very fair. Even in the ends which will rarely be visited. One reason this project is taking quite a bit of time is we are going for quality not speed.

 

kimbottles

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Just curious, are these students going to find jobs in this line of work? What's the market look like? I think it would be awesome to build boats. Then, of course, knowing me I would think it would be awesome to be a computer programmer.
The School places more than 90% of their students in the industry. I keep running into them every time I visit a boat building establishment. (Jim Franken our computer lofting wizard is a graduate.)

(I always wanted to be a yacht designer, but I ended up a CPA instead so I had to settle for having a good friend who is one. I live vicarously through Bob. One of the reasons I am doing this project was to get the change to work with Bob and pretend I had something to do with designing a sailboat.)

 
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