RE: [bolger] Re: Flat Sided Keels
--- David Romasco wrote:
big functions of the steam bent
ribs is to hold the planks
together edge to edge.
In this day and age of sheathing
a boat with xynol cloth, or similar,
the tensile action of the steam
bent rib is replaced with the
tensile strength of the cloth.
So, I agree with you. Also,
that design would be easy to
hold together with plywood
bulkheads, similar to the strip
planked Yonder.
> Seems to me that this designHmmm. I guess that one of the
> would be adaptable to
> strip-plank construction.
big functions of the steam bent
ribs is to hold the planks
together edge to edge.
In this day and age of sheathing
a boat with xynol cloth, or similar,
the tensile action of the steam
bent rib is replaced with the
tensile strength of the cloth.
So, I agree with you. Also,
that design would be easy to
hold together with plywood
bulkheads, similar to the strip
planked Yonder.
Thank you, Bruce.
Seems to me that this design would be adaptable to strip-plank construction.
_____
From:bruce@...[mailto:bruce@...]
Sent: Wednesday, April 14, 2004 10:34 AM
To:bolger@yahoogroups.com
Subject: [bolger] Re: Flat Sided Keels
--- "David Romasco" wrote:
...now includes the missed page 3.
All that capacity in a 19 foot boat!
I wish there was a reasonable option
for steam bendable wood, to build a
bent frame boat for us in California!
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
- Pls add your comments at the TOP, SIGN your posts, and snip away
- Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax:
(978) 282-1349
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[Non-text portions of this message have been removed]
Seems to me that this design would be adaptable to strip-plank construction.
_____
From:bruce@...[mailto:bruce@...]
Sent: Wednesday, April 14, 2004 10:34 AM
To:bolger@yahoogroups.com
Subject: [bolger] Re: Flat Sided Keels
--- "David Romasco" wrote:
> Ding-dag-nab it, Bruce!http://hallman.org/sbj/42/
...now includes the missed page 3.
All that capacity in a 19 foot boat!
I wish there was a reasonable option
for steam bendable wood, to build a
bent frame boat for us in California!
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
- Pls add your comments at the TOP, SIGN your posts, and snip away
- 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
_____
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* To visit your group on the web, go to:
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<http://docs.yahoo.com/info/terms/> .
[Non-text portions of this message have been removed]
--- "David Romasco" wrote:
...now includes the missed page 3.
All that capacity in a 19 foot boat!
I wish there was a reasonable option
for steam bendable wood, to build a
bent frame boat for us in California!
> Ding-dag-nab it, Bruce!http://hallman.org/sbj/42/
...now includes the missed page 3.
All that capacity in a 19 foot boat!
I wish there was a reasonable option
for steam bendable wood, to build a
bent frame boat for us in California!
Ding-dag-nab it, Bruce! Just when I'm totally sucked in to reading Bolger's
prose, I drop off the gap between the last two pages...... wouldja/couldja
please rescan the last page so we can see all the text?
Thanks, and thanks for the article overall.
David Romasco
_____
From: Bruce Hallman [mailto:bruce@...]
Sent: Tuesday, April 13, 2004 6:01 PM
To:bolger@yahoogroups.com
Subject: Re: [bolger] Flat Sided Keels
--- Nels wrote:
one of my favorites. Adding to
your post, [for those not familiar
with it] I put up scans of the
Small Boat Journal article at:
http://hallman.org/sbj/42/
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
- Pls add your comments at the TOP, SIGN your posts, and snip away
- 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
_____
Yahoo! Groups Links
* To visit your group on the web, go to:
http://groups.yahoo.com/group/bolger/
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* 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]
prose, I drop off the gap between the last two pages...... wouldja/couldja
please rescan the last page so we can see all the text?
Thanks, and thanks for the article overall.
David Romasco
_____
From: Bruce Hallman [mailto:bruce@...]
Sent: Tuesday, April 13, 2004 6:01 PM
To:bolger@yahoogroups.com
Subject: Re: [bolger] Flat Sided Keels
--- Nels wrote:
> I was reading the Bolger write-upThanks Nels, that Bolger design is
> on THE ONE PERSON
> LIVEABOARD and
one of my favorites. Adding to
your post, [for those not familiar
with it] I put up scans of the
Small Boat Journal article at:
http://hallman.org/sbj/42/
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
- Pls add your comments at the TOP, SIGN your posts, and snip away
- 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
_____
Yahoo! Groups Links
* To visit your group on the web, go to:
http://groups.yahoo.com/group/bolger/
* To unsubscribe from this group, send an email to:
bolger-unsubscribe@yahoogroups.com
<mailto:bolger-unsubscribe@yahoogroups.com?subject=Unsubscribe>
* 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]
--- Nels wrote:
one of my favorites. Adding to
your post, [for those not familiar
with it] I put up scans of the
Small Boat Journal article at:
http://hallman.org/sbj/42/
> I was reading the Bolger write-upThanks Nels, that Bolger design is
> on THE ONE PERSON
> LIVEABOARD and
one of my favorites. Adding to
your post, [for those not familiar
with it] I put up scans of the
Small Boat Journal article at:
http://hallman.org/sbj/42/
I was reading the Bolger write-up on THE ONE PERSON LIVEABOARD and
found these comments to be noteworthy, regarding keels:
"Flat-Sided Keel
Though the long, deep keel has a lot of wetted surface, it has some
important advantages. It gives rigidity to the whole structure,
especially if the ballast casting is iron (The drawback of iron
ballast is that it would have to extend well fore- and-aft, and the
inertia of its ends would overdamp the boat's pitching, making her
slow in a chop). With all this flatsided keel - unlike a more
hydrodynamic fin, which has to be moving ahead before it will
function as a lateral plane - she won't go sideways even when she's
at a standstill. This characteristic can save considerable
embarrassment in crowded places, and might save the boat should she
miss stays on a lee shore. Boats with keels like this are sometimes
surprisingly fast in light air in spite of their big surface area,
because they make less leeway than the more cutaway keels, and leeway
can be the source of a lot of eddy drag. I heard that a boat with a
keel of this type caused some consternation at an IOR meet a few
years ago, though apparently not enough to force much rethinking on
the doctrine of wetted surface. - Philip C Bolger
found these comments to be noteworthy, regarding keels:
"Flat-Sided Keel
Though the long, deep keel has a lot of wetted surface, it has some
important advantages. It gives rigidity to the whole structure,
especially if the ballast casting is iron (The drawback of iron
ballast is that it would have to extend well fore- and-aft, and the
inertia of its ends would overdamp the boat's pitching, making her
slow in a chop). With all this flatsided keel - unlike a more
hydrodynamic fin, which has to be moving ahead before it will
function as a lateral plane - she won't go sideways even when she's
at a standstill. This characteristic can save considerable
embarrassment in crowded places, and might save the boat should she
miss stays on a lee shore. Boats with keels like this are sometimes
surprisingly fast in light air in spite of their big surface area,
because they make less leeway than the more cutaway keels, and leeway
can be the source of a lot of eddy drag. I heard that a boat with a
keel of this type caused some consternation at an IOR meet a few
years ago, though apparently not enough to force much rethinking on
the doctrine of wetted surface. - Philip C Bolger