Re: [bolger] BobCat Restoration Project

On Wednesday, May 28, 2003, at 06:48 PM,fountainb@...
wrote:

> David Romasco wrote:
>> Why not 1/4" aluminium? No rust, cuts with ordinary tools, and hurts
> less
>> when you drop it on your foot....
>
> A bit soft, I would worry about it bending.

Depends on the alloy or tempering, I am not sure which.
Some are quite stiff. 6061 T6 comes to mind. A stiff salt
water tolerant alloy should be doable, check your local
machine shop.

hal

I have to make an exception to my original thought: those Aussies are hard
as hell on centreplates (water in Oz must be pretty hard..). Still think
aluminium would be my choice, had it in rudders and centreplates and never
regretted it; I'm about to start another project where I fully expect to
fabricate a rudder out of it.

David Romasco

-----Original Message-----
From: dbaldnz [mailto:oink@...]
Sent: Thursday, May 29, 2003 12:29 AM
To:bolger@yahoogroups.com
Subject: [bolger] Re: BobCat Restoration Project

Actually, aluminium should be fine. My Finn had an alloy plate,
similar to Bobcat, and the loading would be greater than Bobcat.
It never bent that you could see. Neither did it especially get
dinged, because it just slid back and up.
Stainless steel might produce dolphin steaks!
DonB

--- Inbolger@yahoogroups.com, fountainb@s... wrote:
> David Romasco wrote:
> > Why not 1/4" aluminium? No rust, cuts with ordinary tools, and
hurts
> less
> > when you drop it on your foot....
>
> A bit soft, I would worry about it bending. Most of the old open
> dinghies in Sydney harbour used a solid steel centreboard, and
> yes it would definitely hurt if you dropped it on your foot. If
> you pull it out and rinse it after use I don't think rust would
> be a real problem, but you could probably get a stainless board
> fabricated for less than you would think. Take along a paper
> template to a company that does stainless fabrication (usually
> for commercial kitchens).
>
> Bruce Fountain

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Actually, aluminium should be fine. My Finn had an alloy plate,
similar to Bobcat, and the loading would be greater than Bobcat.
It never bent that you could see. Neither did it especially get
dinged, because it just slid back and up.
Stainless steel might produce dolphin steaks!
DonB

--- Inbolger@yahoogroups.com, fountainb@s... wrote:
> David Romasco wrote:
> > Why not 1/4" aluminium? No rust, cuts with ordinary tools, and
hurts
> less
> > when you drop it on your foot....
>
> A bit soft, I would worry about it bending. Most of the old open
> dinghies in Sydney harbour used a solid steel centreboard, and
> yes it would definitely hurt if you dropped it on your foot. If
> you pull it out and rinse it after use I don't think rust would
> be a real problem, but you could probably get a stainless board
> fabricated for less than you would think. Take along a paper
> template to a company that does stainless fabrication (usually
> for commercial kitchens).
>
> Bruce Fountain

David Romasco wrote:

> Why not 1/4" aluminium? No rust, cuts with ordinary tools, and hurts

less

> when you drop it on your foot....

A bit soft, I would worry about it bending. Most of the old open
dinghies in Sydney harbour used a solid steel centreboard, and
yes it would definitely hurt if you dropped it on your foot. If
you pull it out and rinse it after use I don't think rust would
be a real problem, but you could probably get a stainless board
fabricated for less than you would think. Take along a paper
template to a company that does stainless fabrication (usually
for commercial kitchens).

Bruce Fountain

Why not 1/4" aluminium? No rust, cuts with ordinary tools, and hurts less
when you drop it on your foot....

David Romasco

-----Original Message-----
From: craig o'donnell [mailto:dadadata@...]
Sent: Wednesday, May 28, 2003 8:55 AM
To:bolger@yahoogroups.com
Subject: Re: [bolger] BobCat Restoration Project

>
>I would just as soon build a new board of smaller width and be done
>with it...but I don't know if a 1/4 board will cut it?

1/4 reinforced with lots of carbon fiber might. As someone suggested,
steel would be cheap and simple. Rust wouldn't even matter much.
--
Craig O'Donnell
Sinepuxent Ancestors & Boats
<http://freepages.genealogy.rootsweb.com/~fassitt/>
The Proa FAQ <http://boat-links.com/proafaq.html>
The Cheap Pages <http://www2.friend.ly.net/~dadadata/>
Sailing Canoes, Polytarp Sails, Bamboo, Chinese Junks,
American Proas, the Bolger Boat Honor Roll,
Plywood Boats, Bamboo Rafts, &c.
_________________________________

-- Professor of Boatology -- Junkomologist
-- Macintosh kinda guy
Friend of Wanda the Wonder Cat, 1991-1997.
_________________________________
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Dont know what the centerboard case looks like, but how about a hefty
hardwood horizontal stiffener on each side, narrower at the ends, wider
in the center, running across the bowed-in area. Drive wedges down into
the case to spread the sides to a flat condition. Put filled epoxy on
the mating stiffener edges, then drill and drive 3-4 screws through the
stiffener into the bowed area to keep it straight. Let cure, then pull
the case wedges.

-Bill
-----Original Message-----
From: chrisbezanis [mailto:cbezanis@...]
Sent: Wednesday, May 28, 2003 2:19 AM
To:bolger@yahoogroups.com
Subject: [bolger] BobCat Restoration Project

Hello All,

I'm in the finishing stages of a BobCat Restoration project.
The boat sat without the centerboard in place and the Stack has bowed
inward causing the board to bind upon installation.
I have tried a few things in an attempt to solve this problem, but
the board still binds up in the stack.

I would just as soon build a new board of smaller width and be done
with it...but I don't know if a 1/4 board will cut it?

This group has provided much advice in the past and I'm hoping to
here from my fellow Bolger enthusiasts.

I have a site that tracks the progress (or lack of) my project, it's
www.bezanis.com

Thanks,
Chris

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- no cursing, flaming, trolling, spamming, or flogging dead horses
- stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
- add your comments at the TOP and SIGN your posts and <snip> away
- To order plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA,
01930, Fax: (978) 282-1349
- Unsubscribe:bolger-unsubscribe@yahoogroups.com
- Open discussion:bolger_coffee_lounge-subscribe@yahoogroups.com

Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service
<http://docs.yahoo.com/info/terms/> .

[Non-text portions of this message have been removed]

>
>I would just as soon build a new board of smaller width and be done
>with it...but I don't know if a 1/4 board will cut it?

> I would just as soon build a new board of smaller width and be done
> with it...but I don't know if a 1/4 board will cut it?

Steel?

Bruce Fountain
Senior Software Engineer
Union Switch & Signal
Perth, Western Australia

Hello All,

I'm in the finishing stages of a BobCat Restoration project.
The boat sat without the centerboard in place and the Stack has bowed
inward causing the board to bind upon installation.
I have tried a few things in an attempt to solve this problem, but
the board still binds up in the stack.

I would just as soon build a new board of smaller width and be done
with it...but I don't know if a 1/4 board will cut it?

This group has provided much advice in the past and I'm hoping to
here from my fellow Bolger enthusiasts.

I have a site that tracks the progress (or lack of) my project, it's
www.bezanis.com

Thanks,
Chris