Perry Sliver Class Day Sailor

rattus32

Anarchist
740
48
Vail, CO
.... it's the same file....

Years ago when I built computers we had a bug in the floating point math hardware of the CPU.
Stupid floating point. We'd build analytic models in SAS and the 8.3 floating point wouldn't translate correctly from the SAS code to the JCL on the IBM system.

Not a huge discrepancy but for some reason they rounded differently and the models required perfection and the proofs would constantly fail. It was the bane of my existence for almost a year.
Holy Crap - I haven't heard the term JCL since I worked at IBM when I was a high school student. Living in IBM country, they took a few of us on as late afternoon interns hoping to recruit us after college. Last gasp of the old-style mainframe lifestyle. I got to work with that newfangled first portable computer, the 5100 I think? Everything was coded in APL on those...

And referring to floating point bugs - was that the infamous Pentium FDIV fail? I was working as a consultant at Intel back then but I swear was never near that part of the design ;-)

Wow, ghosts from the past. Like the old saying goes, "Someday we'll look back at this, laugh nervously, and try to change the subject..."

Mike

 
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Hike Bitches!

Super Anarchist
7,362
156
Solomons, MD
Ooooo...I remember JCL too.. I wold have missed it rattus if you hadn't quoted Austin's post. :unsure:

And ASSM, & Cobol, etc.etc.etc.. Guess I can probably take that stuff off my resume now.. :rolleyes:

 
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kimbottles

Super Anarchist
8,055
783
PNW
Visited the Sliver project today. They have her nicely settled into the padded cradles all nice and snug and are now taking out the remainder of the molds. Then more fairing and eGlassing of the interior of the hull. We are also now gathering up all of the materials etc for the deck laminate.

She sure looks "right" sitting upright.

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Poda

Anarchist
631
0
Toronto
Visited the Sliver project today. They have her nicely settled into the padded cradles all nice and snug and are now taking out the remainder of the molds. Then more fairing and eGlassing of the interior of the hull. We are also now gathering up all of the materials etc for the deck laminate.

She sure looks "right" sitting upright.
Wow.. I missed this thread for a while, and while she looked good upside down, she looks great right-side-up!

 

kimbottles

Super Anarchist
8,055
783
PNW
Kimb, it is so nice to see someone doing a wood boat "right". A friend has a "coldy moldy" that didn't have the interior finished correctly and it is a mess. The rough surface is a mold magnet, thus the name. BV
Three things I have learned from over 50 years in boats are ventilation, ventilation, ventilation.

 

beauvrolyk

Super Anarchist
Kimb, it is so nice to see someone doing a wood boat "right". A friend has a "coldy moldy" that didn't have the interior finished correctly and it is a mess. The rough surface is a mold magnet, thus the name. BV
Three things I have learned from over 50 years in boats are ventilation, ventilation, ventilation.
+1000 to that! Actually there are a lot of folks here on this site that ventilate quite loudly..... :p

 

kimbottles

Super Anarchist
8,055
783
PNW
woah! looks like you have an actual boat there Kimb!

I will have to say that I am surprised at how much I was taken by her looks right side up. I pride myself in being able to understand drawings and the ability to see things, but I have to admit I REALLY like her right side up.

The crew has added little steps to get in and out of the hull (now why did I not take a picture of them?) so it is possible now to go below and experience the boat feel. She actually does not seem so skinny in person....until you climb up to the loft and look down at her. I wonder how she will look when all of the forms are removed and you can see from stem to.......stern (or is that stem to stem??)

I also failed to shoot a picture of the new incoming class that I was introduced to yesterday. I must be getting old.

I will try and take pictures of both next Monday.

 
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kimbottles

Super Anarchist
8,055
783
PNW
Kim - that plank looks like a great place to sit and give serious consideration on how to spend the next 20 years or so.


Yes, I gave it a try yesterday and now I am waiting for the rest of the forms to be removed so I get an even better view from there next Monday when I visit.

 

Bob Perry

Super Anarchist
31,915
1,226
Oh my God!

We are 191 lbs over my weight estimate.

But that was for a composite hull so I think we are doing just fine.

I was going to say "I'm happy". But I don't say that anymore.

But it is a positive sign that I almost said it.

I will say that I really like seeing Kim happy.

 
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It would be interesting to weigh the hull once the interior glassing is done.
I think Jim calculated what it will be. Somewhere around 2000 pounds bare with sheathing in and out.
2000 lbs. Hmmm.

I did a little weight study last fall. As I took stuff off the boat last, preparing for winter, I made sure to walk across a scale as I put it all in the basement storage.

The list went something like this:

Dinghy Outboard Motor (9.5 HP) Outboard Motor Fuel Tank Honda Generator w/Full Tank Fuel Can for Generator

Sheets/Bedding/Towels Books/Galley/Heads Pop/Beer/Wine/Rum/etc. Food Ken's Clothes Anne's Clothes Foul Weather Gear, Boots, etc. Wet Suits, Masks, Flippers Front Berth Mattress Rear Berth Mattress Insert Cushions for Settee Dodger w/Frame, Wind Screen & Side Curtains BBQ 2 x 10 lb Propane Tanks Spare Parts & Maintenance Materials Tools & Tool Boxes Mooring Lines 5/8" x 60' Mooring Lines 3/4" x 40' Fender Board

Add to that 80 gallons of water in the tanks, 56 gallons of diesel.

This leaves the boat in pretty much the same trim she'd be when we race her.

All this comes to a bit more than 2000 lbs.

So, to get Salazar ready to race we remove an amount of displacement equal to the weight of kimb's entire hull.
blink.gif


I'm happy you almost said you were happy Bob. It is a good sign.

 
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SemiSalt

Super Anarchist
7,752
269
WLIS
Chasing down the Google sketch in honor of Nicholas Steno, I came across this:

Nicolaes Witsen wrote "Aeloude and hedendaegsche Scheepsbouw en Bestier" in 1671, which quickly became seen as the standard work on the subject. ("Scheepsbouw" means shipbuilding. The rest baffles Google Translate.) The technique Witsen describes is shell-first, and not frame-first.

Nothing new, eh?

 

Jose Carumba

Super Anarchist
3,066
0
Pugetopolis
Edit: Kimb, I'd like to see it now that it is rolled over. Let's arrange something.

Maybe we should pick a date and invite all of the local CA/WLYDO people.

I will check with Bruce and see when they are starting the deck, might be interesting to see it underway too.
I'm up for another trip down. It would be good to see the great work again.
Yes it would be good to see the deck under construction. If it is going to be infused it would be nice for people to see it with the bag and feeder/vacuum lines installed. I am not sure if your mold wil support infusion though. In any case some Saturday or Sunday would work for me. Hope I am not racing then.

 
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