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Swabbing the deck with robots

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hcobb

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Jan 5, 2010, 9:11:21 PM1/5/10
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Unmanning the front lines?

And are these really effective if the decks are covered with plastic
sheets like that?

-HJC

http://blog.al.com/live/2010/01/uss_independence_reflects_navy.html
That small crew size also puts a premium on experience. The ship's
crew is very senior, with only one ranking as low as a petty officer
second class. Renshaw said he's trying to find ways to cut down on
drudge work inappropriate for high-ranking crew. For example, the Navy
has bought Roomba robotic vacuum cleaners that the crew has been
trying out at its current offices at the Naval Reserve Center in
Langan Park.

Ray O'Hara

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Jan 6, 2010, 1:31:43 AM1/6/10
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"hcobb" <henry...@gmail.com> wrote in message
news:780a1933-31fd-4b3b...@r24g2000yqd.googlegroups.com...

I read a book by a man who served on and eventually captained ships around
the horn in the late 19th century and he wondered about always needing to
swab the decks. He thought it odd that here they were well offshore in the
middle of the ocean yet every other day they had to wash the ship.


dott.Piergiorgio

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Jan 6, 2010, 10:00:36 AM1/6/10
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Ray O'Hara ha scritto:

the issue here is that salt incrustations was and is a sure mean of
jamming fore guns and launchers....

and these robocleaners surely hasn' much accounting for rolling etc. in
their algorithms, so leave this thread to our resident AI and go ahead...

best regards from Italy,
Dott. Piergiorgio.

Ray O'Hara

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Jan 6, 2010, 1:41:26 PM1/6/10
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"dott.Piergiorgio" <dott.Pierg...@KAIGUN.fastwebnet.it> wrote in
message news:pA11n.77783$813....@tornado.fastwebnet.it...

the atmosphere is laden with dust blown from land, even in mid-ocean.
most comes from the worlds deserts. tests have found Sahara dust as far as
the USA.


BlackBeard

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Jan 7, 2010, 12:49:14 AM1/7/10
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On Jan 6, 7:00 am, "dott.Piergiorgio"

<dott.PiergiorgioNI...@KAIGUN.fastwebnet.it> wrote:
> Ray O'Hara ha scritto:
>
>
>
>
>
> > "hcobb" <henry.c...@gmail.com> wrote in message

In the early/mid 19th century they swabbed the decks with salt water.
I doubt even with the end of the century steamers the stills made
enough fresh water that they would waste it on the decks.

BB

zzbu...@netscape.net

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Jan 7, 2010, 2:27:36 AM1/7/10
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On Jan 5, 9:11 pm, hcobb <henry.c...@gmail.com> wrote:
> Unmanning the front lines?
>
> And are these really effective if the decks are covered with plastic
> sheets like that?

The navy has so many stange devices they call robots,
it doesn't matter too much, since the people who
know how decks work, work on self-replicating machines,
rather than robots. And the people who know how
robots work, work on cyber batteries, laser disks, holographics,
blue ray, HDTV, desktop publishing, fiber optics, rapid
prototyping,
digital terrain mapping, atomic clock wristwatches, and Post GM
nomics,
rather than with military idiots anyway.

PaPa Peng

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Jan 7, 2010, 7:42:54 AM1/7/10
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On Jan 5, 11:31 pm, "Ray O'Hara" <raymond-oh...@hotmail.com> wrote:
> "hcobb" <henry.c...@gmail.com> wrote in message
>

> I read a book by a man who served on and eventually captained ships around


> the horn in the late 19th century and he wondered about always needing to
> swab the decks. He thought it odd that here they were well offshore in the
> middle of the ocean yet every other day they had to wash the ship.

Swabbing on wood sailing ships was necessary to keep the timbers damp
and swollen. If the timbers dry out the planks would pull away from
the caulking and result in leaks. The St Roch in a Vancouver museum
is a small wood motorized sailing boat housed indoors. One can see
the cracks between the dried out planks (Have to be there in person to
notice it.) http://www.vancouvermaritimemuseum.com/page186.htm

Richard Casady

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Jan 7, 2010, 8:27:13 AM1/7/10
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On Thu, 7 Jan 2010 04:42:54 -0800 (PST), PaPa Peng
<papa...@gmail.com> wrote:

>Swabbing on wood sailing ships was necessary to keep the timbers damp
>and swollen. If the timbers dry out the planks would pull away from
>the caulking and result in leaks. The St Roch in a Vancouver museum
>is a small wood motorized sailing boat housed indoors. One can see
>the cracks between the dried out planks (Have to be there in person to
>notice it.) http://www.vancouvermaritimemuseum.com/page186.htm

Bullshit. I have been on a number of ships with wooden decks that are
never swabbed. They sand them once a year.

Casady

Keith Willshaw

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Jan 7, 2010, 9:18:41 AM1/7/10
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"PaPa Peng" <papa...@gmail.com> wrote in message
news:216025e7-08fd-4e6e...@s3g2000yqs.googlegroups.com...

Having been onboard a number of restored Napoleonic era sailing vessels
I rather doubt this. None had teams of people swabbing the decks but
had nice tight timbers. Additionally it it was just a matter of wetting
down the decks rigging a pump and hose line would suffice.

The reality is that naval vessels carried far larger crews than were needed
just to sail the vessel and keeping them busy was important. A crew
that is swabbing and holystoning the deck doesnt have as much time and
inclination to get inro trouble.

Keith


Mark Borgerson

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Jan 7, 2010, 10:00:23 AM1/7/10
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In article <v4obk594f2d0ghfbv...@4ax.com>,
richar...@earthlink.net says...
I've seen a lot of ships like that also---but quite often the wooden
decks are laid over steel and are for appearance and need not
be watertight.

Also, modern elastic caulking materials may accomodate a greater
degree of shrinkage than the older oakum and tar caulking.


Mark Borgerson

Richard Casady

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Jan 7, 2010, 10:31:29 AM1/7/10
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On Thu, 7 Jan 2010 07:00:23 -0800, Mark Borgerson
<mborg...@comcast.net> wrote:

> Bullshit. I have been on a number of ships with wooden decks that are
>> never swabbed. They sand them once a year.
>>
>> Casady
>>
>I've seen a lot of ships like that also---but quite often the wooden
>decks are laid over steel and are for appearance and need not
>be watertight.
>
>Also, modern elastic caulking materials may accomodate a greater
>degree of shrinkage than the older oakum and tar caulking.
>

I believe they hose off the soot from the engines from time to time.
And they are laid over steel. Cruise ships have three inches of teak,
while the Iowas had four.

Casady

Richard Casady

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Jan 7, 2010, 11:04:23 AM1/7/10
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On Thu, 7 Jan 2010 04:42:54 -0800 (PST), PaPa Peng
<papa...@gmail.com> wrote:

Trouble is that wouldn't work.

Casady

Richard Casady

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Jan 7, 2010, 4:36:58 PM1/7/10
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On Thu, 7 Jan 2010 07:00:23 -0800, Mark Borgerson
<mborg...@comcast.net> wrote:

> laid over steel and are for appearance and need not
>be watertight.

Weathered teak is much less slippery than painted steel. Of course you
can put sand in the paint for cheap.

Casady

William Hamblen

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Jan 7, 2010, 8:51:27 PM1/7/10
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Wood is much kinder to the feet than steel.

Bud

Mark Borgerson

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Jan 8, 2010, 1:07:27 AM1/8/10
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In article <vr3dk5lolgppt58vc...@4ax.com>,
william...@earthlink.net says...
Especially bare feet under tropical sun.


Mark Borgerson


Hal Murray

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Jan 8, 2010, 3:39:43 AM1/8/10
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>>Swabbing on wood sailing ships was necessary to keep the timbers damp
>>and swollen. If the timbers dry out the planks would pull away from
>>the caulking and result in leaks. The St Roch in a Vancouver museum
>>is a small wood motorized sailing boat housed indoors. One can see
>>the cracks between the dried out planks (Have to be there in person to
>>notice it.) http://www.vancouvermaritimemuseum.com/page186.htm
>
>Trouble is that wouldn't work.

What wouldn't work, and why?

Wood swells when it gets wet, more so perpendicular to the grain
rather than along the grain.

I could easily imagine that keeping the decks wet was a key step
in keeping them from leaking. But the keep-em busy could be a
better story.


When I was a kid, my dad got us a sailboat. That was over 50 years
ago, long before plastic. It was an old wooden boat. It lived in
the water for the whole summer, moored to a bouy rather than getting
pulled up on a hoist when not in use.

When we put it in the water, it leaked like a sive. The part that
surprised me was that my dad wasn't bothered. He had grown up with
that technology. After a few days, I bailed it out. It still leaked,
but not much. After a week or so, it didn't leak at all.

--
These are my opinions, not necessarily my employer's. I hate spam.

Ray O'Hara

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Jan 26, 2010, 10:00:24 PM1/26/10
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"PaPa Peng" <papa...@gmail.com> wrote in message
news:216025e7-08fd-4e6e...@s3g2000yqs.googlegroups.com...

the man seemed to think they were swabbibg the deck because it kept getting
dirt.
they know now that the atmosphere is full of wind borne dirt from the land
even out in the middle of the ocean


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