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Stringers and Ribs: Differences Between Question ?

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Bob

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Jun 10, 2001, 3:58:23 PM6/10/01
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Hi,

Confused over these two terms related (mainly) to sailing ships:

What are "ribs"

What are "stringers"

Differences between?

Much thanks,
Bob rgs...@tiac.net

P.C.

unread,
Jun 10, 2001, 4:26:52 PM6/10/01
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Hi.

Bob skrev i meddelelsen <9g0jea$k65$1...@news-central.tiac.net>...

This is a rib structure on a keel 90deg.

http://w1.1396.telia.com/~u139600113/:))/rib-structure.jpg

Also this ;
http://w1.1396.telia.com/~u139600113/:))/w-ribs.jpg

but there is a better way to make this structure :


http://w1.1396.telia.com/~u139600113/:))/4-RIBS.JPG

It work like this:
http://w1.1396.telia.com/~u139600113/:))/Honeycomb-ribs.jpg

Stringers make a huge difference in both constructions ,It's like the "H" in an
H iron.

Have a nice day
P.C.

National Whether Service

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Jun 10, 2001, 5:54:53 PM6/10/01
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"Bob" <rgs...@tiac.net> wrote in message
news:9g0jea$k65$1...@news-central.tiac.net...

> Hi,
>
> Confused over these two terms related (mainly) to sailing ships:
>
> What are "ribs"
>
> What are "stringers"


As I am beginning to understand it, stringers are like the stringers in
frame house building. They would go between and perpendicular to the ribs.


arbarnhart

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Jun 10, 2001, 9:52:31 PM6/10/01
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Here is a simplification (maybe oversimplified, as I have a gift for that):

Both ribs and stringers go from one side to the other, but ribs follow the
contour of the hull while stringers typically cross in a straight line.
If it has any space under it, it's a stringer.

-Andy

"Bob" <rgs...@tiac.net> wrote in message
news:9g0jea$k65$1...@news-central.tiac.net...

Pat Ford

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Jun 10, 2001, 10:15:33 PM6/10/01
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>"Bob" <rgs...@tiac.net> wrote in message
>news:9g0jea$k65$1...@news-central.tiac.net...
>> Hi,
>>
>> Confused over these two terms related (mainly) to sailing ships:
>>
>> What are "ribs"

As Joe Trumbly, the boatbuilding instructor at Bates in Tacoma,
said-frames are on a boat, ribs are on a cow.

Stringer is pretty nonspecific; it may not even be a proper
boatbuilding term. I have a sense that a stringer is a general
longitudinal. But again, I don't think it is a correct term at
all-strictly speaking.


>>
>> What are "stringers"

>
>

Glenn Ashmore

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Jun 10, 2001, 10:25:24 PM6/10/01
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That's a floor. Stringers run for and aft. Ribs go side to side. Floors are
horozontal members that brace ribs or frames and sometimes support the sole.

arbarnhart wrote:

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack there
of) at: http://www.rutuonline.com

P.C.

unread,
Jun 11, 2001, 4:51:41 AM6/11/01
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Hi.

Pat Ford skrev i meddelelsen <3b242881...@news.qwest.net>...


>
>
>
>>"Bob" <rgs...@tiac.net> wrote in message
>>news:9g0jea$k65$1...@news-central.tiac.net...
>>> Hi,
>>>
>>> Confused over these two terms related (mainly) to sailing ships:
>>>
>>> What are "ribs"
>As Joe Trumbly, the boatbuilding instructor at Bates in Tacoma,
>said-frames are on a boat, ribs are on a cow.

Right , ----- it would be bad the other way around ;)) ---- for the Cow anyway.

>
>Stringer is pretty nonspecific; it may not even be a proper
>boatbuilding term. I have a sense that a stringer is a general
>longitudinal. But again, I don't think it is a correct term at
>all-strictly speaking.

Right again , ------ but there is more to it than that ; stringers add more
strength than you think ,they help form a structure where plank and stringers
are tight together with the rib structure inbetween that is the basic idear of
a wooden hull construction.
To understand the idear ,one must emagine to cut out the stringer and the ribs
under it plus the planking under that . Or whay it make a big difference if you
have two long planks and you then place small wooden pieces between them and
nail and bolt the planks together thru the wooden pieces ( part rib's).
----------- The stringers make you add more strength longitude to a boat hull
,than the strength they carry themself ,as when they are in ,they form a new
structure with the rib's and the outer planks .
Dammed hard to explain , ----- but they also work in an application where you
have very thin frames ( do my best using that word ) , as here the frames will
only act as distance blocks ,as they have no strength by themself ,but as soon a
stringer is placed along all frames and bolted thru frames and planking ,a new
and very strong and flexible structure occour.
This is the best I can do, explaining why stringers are that important ,guess
they often double the strength of a wooden hull or any other hull by just a few
strakes.
Have a nice day.


>
>
>>>
>>> What are "stringers"
>
>>
>>
>


arbarnhart

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Jun 11, 2001, 10:41:28 AM6/11/01
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Hmmm...
I was speaking of boards that run side to side as thwarts or seat supports
in a small boat. In some texts, these are referred to as stringers.
In a small boat (which is my context), the only boards running fore and aft
are gunwales and optionally the keel/skeg.

-Andy

"Glenn Ashmore" <gash...@mindspring.com> wrote in message
news:3B242C14...@mindspring.com...

CD

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Jun 12, 2001, 12:10:13 AM6/12/01
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Pat Ford wrote:

As Joe Trumbly, the boatbuilding instructor at Bates in Tacoma,
said-frames are on a boat, ribs are on a cow.

Pat,
Are you by chance a former Trumbly protege?
Charlie
> >
> >

Pat Ford

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Jun 12, 2001, 12:45:08 AM6/12/01
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Nope. You?

I did meet him a few times. Neat guy. Lived on Raft Island near
Tacoma. He loved boatbuilding. He had a terrific infectious energy; he
was a great teacher.

He once went to Europe to see all the boatbuilding hotspots. He ran
into a member of the Beken family-the famous uppa uppa British
yachting photographers. The guy introduced himself as Beken of
Cowes-the name of their photography business-Cowes being the English
yachting center-kinda like Newport or Marblehead in the old days here.

Anyway-Joe replied, Glad to meet you, I'm Trumbly of Raft.


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