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Science Forum Index » Space - History Forum » OM back in hospital yet again
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| Pat Flannery |
Posted: Fri Mar 21, 2008 12:00 am |
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Rhonda Lea Kirk wrote:
Quote:
Now I'm more worried about you than I am about him. When he gets back,
he's going to kill you, Pat.
Still no word from him.
Pat |
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| Greg D. Moore (Strider) |
Posted: Fri Mar 21, 2008 12:15 am |
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"Bash" <bja3wo@hotmail.com> wrote in message
news:16214d81-5bf3-49d0-b17a-008819e63c04@s12g2000prg.googlegroups.com...
Quote: Nothing from him yet.
And retractable pods too. Interesting design philosphy and very
workable as part of the script (ref the pilot 2 parter) Useful in
terms of mass of machiery to retract them? Probably not, better to
have big blast doors to protect against the proverbial Atlantia death
squadron. - ps that mission mort rate was 100% ;-)
Well note, taht the retraction in theory is because otherwise they'd extend
beyond the size of the 'hyperspace' bubble.
But does make it dramatic.
Now, the Pegasus flights pods don't retract, but are interesting in their
own right.
--
Greg Moore
SQL Server DBA Consulting Remote and Onsite available!
Email: sql (at) greenms.com http://www.greenms.com/sqlserver.html |
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| Derek Lyons |
Posted: Fri Mar 21, 2008 1:19 pm |
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Pat Flannery <flanner@daktel.com> wrote:
Quote: Of course I'm a technology geek, and I sat there looking at the
Galactica and thinking " ... you know, that makes a lot of sense... in
the absence of atmosphere you actually could put the structural
framework on the exterior of the ship, rather than inside. No one's ever
thought of that before."
Not much of a technology geek - more of a 'that l00ks k3wl' geek.
Structural framing on the exterior of the ship complicates thermal
issues, provides fragment traps, etc... etc...
Quote: It certainly makes for a uncluttered interior of the primary pressure
hull.
Actually, it makes the interior _more_ cluttered - as now all the
cables and piping that used to either run within the spaces between
the structural members or be supported by the selfsame members now has
to find other volume to occupy and other structure to support it.
D.
--
Touch-twice life. Eat. Drink. Laugh.
http://derekl1963.livejournal.com/
-Resolved: To be more temperate in my postings.
Oct 5th, 2004 JDL |
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| Derek Lyons |
Posted: Fri Mar 21, 2008 1:32 pm |
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"Greg D. Moore \(Strider\)" <mooregr_deleteth1s@greenms.com> wrote:
Quote: The battlestar itself definitely has the feel (well for us landlubbers) of
an authentic warship. (and little details like using actual army phones for
the shipboard phones is a nice touch.)
For you landlubbers, yeah. Otherwise it's an utter design horror.
For example - our (powered) phone system looked pretty much like a
land phone, like what you'd find in a phone booth for example. (Minus
the coin handling bits obviously.)
Nor did we keep the command center (or any other part of the ship)
dark and gloomy with weird lighting. Control was either fully lit,
lit by only by red lights, or fully dark with instrument lights dimmed
almost to being out[1]. Surface ship CIC's are always fully lit,
while the Bridge is lit by natural light (or not).
[1] And in that state, the smoking lamp was out... When rigged for
red, you had to step outside of Control to use a lighter.
D.
--
Touch-twice life. Eat. Drink. Laugh.
http://derekl1963.livejournal.com/
-Resolved: To be more temperate in my postings.
Oct 5th, 2004 JDL |
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| Pat Flannery |
Posted: Fri Mar 21, 2008 4:27 pm |
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Derek Lyons wrote:
Quote: Actually, it makes the interior _more_ cluttered - as now all the
cables and piping that used to either run within the spaces between
the structural members or be supported by the selfsame members now has
to find other volume to occupy and other structure to support it.
Yeah, but remember your sub days...on a warship you want all the
plumbing and wiring where you can get at it in a hurry if something gets
damaged.
Anyway, I'm sure the main reason for the exterior framework was, like
the retractable fighter bays, aesthetics, not some breakthrough in
functional design. For starters, given the size of the ship the
framework is way oversized to handle the comparatively low difference in
pressure between vacuum and interior atmospheric pressure.
Pat |
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| Pat Flannery |
Posted: Fri Mar 21, 2008 4:34 pm |
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Derek Lyons wrote:
Quote: For you landlubbers, yeah. Otherwise it's an utter design horror.
For example - our (powered) phone system looked pretty much like a
land phone, like what you'd find in a phone booth for example. (Minus
the coin handling bits obviously.)
Here's something I've always wondered about...are the staircases between
decks angled so that the upper end is forward of the lower end?
You'd expect that, as it would give the crew a better chance of staying
upright if the sub collided with something while some of the the crew
were on the stairs.
Other way around and the person on the stairs might get tossed clean off
of them as the sub rapidly decelerated.
Quote: Nor did we keep the command center (or any other part of the ship)
dark and gloomy with weird lighting. Control was either fully lit,
lit by only by red lights, or fully dark with instrument lights dimmed
almost to being out[1]. Surface ship CIC's are always fully lit,
while the Bridge is lit by natural light (or not).
[1] And in that state, the smoking lamp was out... When rigged for
red, you had to step outside of Control to use a lighter.
Was that for surface operations, or just to allow maximum dark
acclimatization for the eyes of the people using the periscopes?
Pat |
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| Derek Lyons |
Posted: Fri Mar 21, 2008 5:49 pm |
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Pat Flannery <flanner@daktel.com> wrote:
Quote:
Derek Lyons wrote:
For you landlubbers, yeah. Otherwise it's an utter design horror.
For example - our (powered) phone system looked pretty much like a
land phone, like what you'd find in a phone booth for example. (Minus
the coin handling bits obviously.)
Here's something I've always wondered about...are the staircases between
decks angled so that the upper end is forward of the lower end?
No, they're angles whichever way fits into the available space.
Quote: You'd expect that, as it would give the crew a better chance of staying
upright if the sub collided with something while some of the the crew
were on the stairs.
Other way around and the person on the stairs might get tossed clean off
of them as the sub rapidly decelerated.
Happily, such collisions are rare. :)
Quote: Nor did we keep the command center (or any other part of the ship)
dark and gloomy with weird lighting. Control was either fully lit,
lit by only by red lights, or fully dark with instrument lights dimmed
almost to being out[1]. Surface ship CIC's are always fully lit,
while the Bridge is lit by natural light (or not).
[1] And in that state, the smoking lamp was out... When rigged for
red, you had to step outside of Control to use a lighter.
Was that for surface operations, or just to allow maximum dark
acclimatization for the eyes of the people using the periscopes?
On the surface or for periscope ops, Control was lit during the day
and fully dark at night. Rig for red was used for normal submerged
ops when it was dark on the roof. (We rigged 15 mins before local
sunset and secured the rig 15 mins before dawn.)
D.
--
Touch-twice life. Eat. Drink. Laugh.
http://derekl1963.livejournal.com/
-Resolved: To be more temperate in my postings.
Oct 5th, 2004 JDL |
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| Derek Lyons |
Posted: Fri Mar 21, 2008 6:45 pm |
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Pat Flannery <flanner@daktel.com> wrote:
Quote: Derek Lyons wrote:
Actually, it makes the interior _more_ cluttered - as now all the
cables and piping that used to either run within the spaces between
the structural members or be supported by the selfsame members now has
to find other volume to occupy and other structure to support it.
Yeah, but remember your sub days...on a warship you want all the
plumbing and wiring where you can get at it in a hurry if something gets
damaged.
Not entirely true. But the bays between structural members does make
a wonderful place to organize that stuff. Also the backs of lockers
and equipment protruded into the spaces between structural members in
some places. On a submarine, HP air and gas cylinders are curved (I.E.
banana shaped) and fitted into those spaces as well.
That seemingly 'waste' space isn't actually wasted in a real design.
If it goes away because you used external framing, you're still left
with the stuff that used to occupy those spaces.
Look in the bottom of an Apollo capsule, where the heatshield meets
the conical portion and you'll see the same thing. If you look at the
shuttle, they keep a variety of stuff down below the floor in the crew
cabin and in the space between the cargo bay and fuselage walls. The
stable platforms on the Shuttle, for example, are stuffed into
otherwise useless space in front of the cockpit and above the middeck.
Our main method of damage control in that sense was to run the primary
and backup cabling and piping on opposite sides of the ship, which is
also mostly true for surface ships. The big difference from a surface
ships point of view was they had a web of cross connects and alternate
routes that ran athwartships (and vertically) at various places so you
can route around damage. We didn't plan on routing around damage - as
anything which damaged the hull badly enough to get at the systems
inside had already killed the boat.
Neither surface ships or submarines planned on or had significant
capability to make any serious repairs to piping or cabling underway -
switch to backups, win the battle, and limp home where the sandcrabs
and yardbirds can patch 'er up.
MIR, and ISS use the same design philosophy more-or-less... Piping and
cabling are dammed hard to repair/upgrade and last a hell of a long
time anyhow, so just bury it in the walls. Where MIR flubbed it, and
the Navy does sometimes too (though they are getting better), is not
providing at least some access for occasional minor repairs and
upgrades. ISS does a little better since, on the American side, you
can pull a rack or rack(s) and get acess to the cabling/piping that
runs near the shell.
Quote: Anyway, I'm sure the main reason for the exterior framework was, like
the retractable fighter bays, aesthetics, not some breakthrough in
functional design. For starters, given the size of the ship the
framework is way oversized to handle the comparatively low difference in
pressure between vacuum and interior atmospheric pressure.
I suspect you are correct on both accounts. I'm just pointing out the
difference between what 'seems to make sense' and real world
considerations that might not occur to the lubber.
This is why I laugh (sometimes out loud) at depictions of fictional
spacecraft, and fictional depictions of (meant to be real, maybe
someday) real space craft by armchair engineers - they're the modern
equivalent of the 'bug eyed' LEM or the crawling down the side of an
Atlas to reach the surface just landed on. The depictors thereof
don't think about the real world engineering implications.
D.
--
Touch-twice life. Eat. Drink. Laugh.
http://derekl1963.livejournal.com/
-Resolved: To be more temperate in my postings.
Oct 5th, 2004 JDL |
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| Pat Flannery |
Posted: Fri Mar 21, 2008 10:36 pm |
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Derek Lyons wrote:
Quote: On the surface or for periscope ops, Control was lit during the day
and fully dark at night. Rig for red was used for normal submerged
ops when it was dark on the roof. (We rigged 15 mins before local
sunset and secured the rig 15 mins before dawn.)
Is the red light is used to at least give the crew some sense of a 24
hour day cycle, as well as keeping their eyes ready for night use?
I could see all sorts of circadian rhythm problems arising on a sub
where there isn't any sort of difference between day and night as far as
lighting goes to clue in your internal clocks as to the normal 24 hour
daily rhythm.
In tests done in caves without any sort of clocks given to the test
subjects or illumination changes between day and night, they drifted
into something like a 25-27 hour day:
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1330995
It would be interesting to figure out why the internal "natural" day
would be slightly longer than the real one.
I thought it might be related to the Moon slowing down the Earth's
rotational speed via tides over a period of millions of years of human
evolution, but that should have the reverse effect, with the "natural"
circadian day being _shorter_ than the real one.
Pat |
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| Pat Flannery |
Posted: Fri Mar 21, 2008 11:12 pm |
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Derek Lyons wrote:
Quote: MIR, and ISS use the same design philosophy more-or-less... Piping and
cabling are dammed hard to repair/upgrade and last a hell of a long
time anyhow, so just bury it in the walls. Where MIR flubbed it,
Oh yes, the glycol leak mess...not to mention the GIANT WORMS:
http://www.anomalist.com/reports/mir.html
That report makes it sound like they had the Andromeda Strain aboard.
I was going to write that whole thing off as Russian BS until I read
that report about mutations of microorganisms during our Shuttle mission
tests.
I imagine keeping a sub fungus and mold-free presents a challenge also.
Quote: and
the Navy does sometimes too (though they are getting better), is not
providing at least some access for occasional minor repairs and
upgrades. ISS does a little better since, on the American side, you
can pull a rack or rack(s) and get acess to the cabling/piping that
runs near the shell.
Anyway, I'm sure the main reason for the exterior framework was, like
the retractable fighter bays, aesthetics, not some breakthrough in
functional design. For starters, given the size of the ship the
framework is way oversized to handle the comparatively low difference in
pressure between vacuum and interior atmospheric pressure.
I suspect you are correct on both accounts. I'm just pointing out the
difference between what 'seems to make sense' and real world
considerations that might not occur to the lubber.
BTW, there's a detailed set of drawings of the Galactica here showing
all the exterior framework:
http://www.shipschematics.net/bsg/images/colonial/battlestar_galactica.jpg
Are those RCS thrusters on the back engine pods, like the ones on the
Shuttle OMS pods?
It looks for all the world like it was supposed to be double-hulled and
they ran out of exterior plating.
That's from here: http://www.shipschematics.net/
Quote: This is why I laugh (sometimes out loud) at depictions of fictional
spacecraft, and fictional depictions of (meant to be real, maybe
someday) real space craft by armchair engineers - they're the modern
equivalent of the 'bug eyed' LEM or the crawling down the side of an
Atlas to reach the surface just landed on. The depictors thereof
don't think about the real world engineering implications.
I think that anyone who puts any thought into it realizes that a sub is
probably by far the closest thing we have to what a large spacecraft
would look like internally.
At least they have chairs on the bridge, which is more than a Romulan
Bird-Of-Prey does:
http://www.ex-astris-scientia.org/gallery/bridges/romulan-bop-bridge.jpg
All the ST bridges are here:
http://www.ex-astris-scientia.org/gallery/bridges1.htm
http://www.ex-astris-scientia.org/gallery/bridges1a.htm
Pat |
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| Derek Lyons |
Posted: Sat Mar 22, 2008 10:14 am |
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Pat Flannery <flanner@daktel.com> wrote:
Quote:
Derek Lyons wrote:
On the surface or for periscope ops, Control was lit during the day
and fully dark at night. Rig for red was used for normal submerged
ops when it was dark on the roof. (We rigged 15 mins before local
sunset and secured the rig 15 mins before dawn.)
Is the red light is used to at least give the crew some sense of a 24
hour day cycle, as well as keeping their eyes ready for night use?
Only to keep the eyes ready.
Quote: I could see all sorts of circadian rhythm problems arising on a sub
where there isn't any sort of difference between day and night as far as
lighting goes to clue in your internal clocks as to the normal 24 hour
daily rhythm.
Underway we actually live on more-or-less an 18 hour rhythm.
D.
--
Touch-twice life. Eat. Drink. Laugh.
http://derekl1963.livejournal.com/
-Resolved: To be more temperate in my postings.
Oct 5th, 2004 JDL |
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| Derek Lyons |
Posted: Sat Mar 22, 2008 11:22 pm |
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Pat Flannery <flanner@daktel.com> wrote:
Quote:
Derek Lyons wrote:
MIR, and ISS use the same design philosophy more-or-less... Piping and
cabling are dammed hard to repair/upgrade and last a hell of a long
time anyhow, so just bury it in the walls. Where MIR flubbed it,
Oh yes, the glycol leak mess...not to mention the GIANT WORMS:
http://www.anomalist.com/reports/mir.html
That report makes it sound like they had the Andromeda Strain aboard.
I was going to write that whole thing off as Russian BS until I read
that report about mutations of microorganisms during our Shuttle mission
tests.
There are going to be mutations etc... But I'd take the above URL
with a largish grain of salt given the contents of the remainder of
the site.
Quote: I imagine keeping a sub fungus and mold-free presents a challenge also.
We spent a lot of time cleaning indeed - because anything infectious
sweeps through the whole crew. (We nearly missed going to sea on time
because a nasty strain of flu spread like wild fire one patrol.)
Quote: I think that anyone who puts any thought into it realizes that a sub is
probably by far the closest thing we have to what a large spacecraft
would look like internally.
That would be a reasonable guess.
And I thought I had too much time on my hands!
D.
--
Touch-twice life. Eat. Drink. Laugh.
http://derekl1963.livejournal.com/
-Resolved: To be more temperate in my postings.
Oct 5th, 2004 JDL |
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| Pat Flannery |
Posted: Sun Mar 23, 2008 3:01 am |
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Derek Lyons wrote:
Quote: Underway we actually live on more-or-less an 18 hour rhythm.
I've read that, but there must be hell to pay when you get back to home
port and hit something like severe jet lag after a long patrol.*
Here's a goofy thing... remember the 25 hour day in absence of clocks,
sunrises, and sunsets?
Doesn't work on Earth...does work on another planet, though.
Mars has a day around 2/3rds of a hour longer than ours.
(Start Twilight Zone music.) ;-)
* Your book review of "Spy Sub" BTW?
I thought that was of the only realistic slices-of-life on a nuclear sub
I ever read.
Pat |
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| Pat Flannery |
Posted: Sun Mar 23, 2008 3:41 am |
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Derek Lyons wrote:
Quote:
I imagine keeping a sub fungus and mold-free presents a challenge also.
We spent a lot of time cleaning indeed - because anything infectious
sweeps through the whole crew. (We nearly missed going to sea on time
because a nasty strain of flu spread like wild fire one patrol.)
I would think one major problem would be that most household
disinfectants could screw up the air purification gear.
I know that sub crews use special shower soaps and deodorants due to
that problem.
Quote:
I think that anyone who puts any thought into it realizes that a sub is
probably by far the closest thing we have to what a large spacecraft
would look like internally.
That would be a reasonable guess.
BTW...ever see this?: http://davidszondy.com/future/space/dean_drive.htm
I've also seen a drawing of a Skipjack class with one mounted on it.
There's a weird connection to me in this also...one of the major
employers in our town is Goodrich, which used to be Lucas Western,
which used to be Western Gear, which did a study on the Dean Drive.
Quote:
And I thought I had too much time on my hands!
I've talked to ST fans to whom the ST universe is far more real than the
one they are actually living in.
They had a lot of fun with that in the movie "Galaxy Quest".
You want to see something _really_ odd, tune into what's running on my
TV right now on the "Oxygen" network.
They've got "Shoperotic" running.
I was hoping this was going to be something about hot babes in sexy
lingerie...it's not... it's where women can buy exotic dildos and
vibrators...some up to 18" in length going up both ends at once,
described in clinical detail by two not-terribly-erotic women, who look
more like they should be accountants at a law firm.
Right now it's the "Diva Pleaser" that's on sale.
You've got to _see_ this show to believe it.
Whoops, "Passion Pit" strap-ons for lesbians!...they are on sale! Get
them now!
Arthur C. Clarke may be dead, and if he wasn't, this oddity cuming..
excuse me..."coming" to us via his comsats in GEO probably would have
killed him.
Now, let's hear the description of the "Starchild" dildo again.
"A huge black monolith you can monkey around with all night?" :-D
Pat |
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| Pat Flannery |
Posted: Sun Mar 23, 2008 4:25 am |
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Pat Flannery wrote:
Quote:
Derek Lyons wrote:
I imagine keeping a sub fungus and mold-free presents a challenge also.
We spent a lot of time cleaning indeed - because anything infectious
sweeps through the whole crew. (We nearly missed going to sea on time
because a nasty strain of flu spread like wild fire one patrol.)
I would think one major problem would be that most household
disinfectants could screw up the air purification gear.
I know that sub crews use special shower soaps and deodorants due to
that problem.
I think that anyone who puts any thought into it realizes that a sub
is probably by far the closest thing we have to what a large
spacecraft would look like internally.
That would be a reasonable guess.
BTW...ever see this?: http://davidszondy.com/future/space/dean_drive.htm
I've also seen a drawing of a Skipjack class with one mounted on it.
There's a weird connection to me in this also...one of the major
employers in our town is Goodrich, which used to be Lucas Western,
which used to be Western Gear, which did a study on the Dean Drive.
And I thought I had too much time on my hands!
I've talked to ST fans to whom the ST universe is far more real than
the one they are actually living in.
They had a lot of fun with that in the movie "Galaxy Quest".
You want to see something _really_ odd, tune into what's running on my
TV right now on the "Oxygen" network.
They've got "Shoperotic" running.
I was hoping this was going to be something about hot babes in sexy
lingerie...it's not... it's where women can buy exotic dildos and
vibrators...some up to 18" in length going up both ends at once,
described in clinical detail by two not-terribly-erotic women, who
look more like they should be accountants at a law firm.
Then, of course, they've got something for the guys....it's going up
your rear to vibrate your prostrate gland while another part is tickling
your scrotum.
In a world where premature ejaculation is a common sexual problem, this
widget is probably not really needed.
In fact, it would scare the hell out of me unless I could be completely
assured it obeyed Asimov's three rules of robotics, and had a top-notch
Underwriter's Laboratory rating.
Even with that, I never got the hots for Adam Link getting anywhere near
my rear. My proctologist and I have a somewhat uneasy relationship
despite rubber gloves and necessity.
Oh God, for the last century...when the big questions were: "Who's on
top?" and "Who's going to end up sleeping in the wet spot?"
In the 21st century, apparently the big question is: "Whose electric
bill does this night of lust go on?"
Pat |
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