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Andrew Probert and Rick Sternbach: The New Enterprise

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I thought Babylon 5 was supposed to be Tolkein's Lord of the Rings set in space, and it still had telepathy, FTL spaceflight and aliens with lumpy foreheads.

TGT
It contained elements of LOTR, but was far from a direct translation into space opera. There were far more non-humanoid aliens, for one thing, as well as rotating sections for artificial gravity, no teleportation, no reactionless drives, more realistic weapons and warfare, etc...

Star Trek definitely had its sciency elements, sure, but there was far too much handwavium and unobtanium for me to consider it "hard".
 
Dangerous and difficult.
No more than on the ground, it simply poses a different set of challenges. On the ground the ship must be supported since its shape doesn't lend itself to being very strong, even while fully constructed. There's also a danger of workers and tools falling, and inclimate weather destroying the ship before work can be completed.

Space is a hostile environment, and one in which people don't work well even in the best of conditions.
Space would suck without a spacesuit or shuttle of some kind, but since they'd have those...

Do we build submarines and other warships in the water?
Ah yes, this kernel of logic. :rolleyes: Let's see, in water there are currents, the water itself has a higher density than air, making it more difficult to move objects through it, and the water itself has an oxidizing effect on metal. We also don't have to launch ships or submarines into space, and launching them is just as easy as sliding them into the water that is directly adjacent to where they are built. In space, there is no resistance to movement from any fluid, there is no oxidizing agent, and it would probably be pretty awkward to launch a fully constructed starship from the ground when it'd be much easier to just do it in space.

Do we build space shuttles and space station components in orbit?
No, but we're building a space station in orbit.

Of course not. It would make the task 1000x harder than it needs to be.
We also have no infrastructure present in orbit that would be needed to build a ship in orbit, we just have the cranes on the space shuttle and the space station, which are kind of busy trying to finish up the space station.

I have no problem with having the major components assembled and finalized in space, but it makes a lot more sense to do most of the work in man's natural environment.
You could do that, because it'd be easier to get those into orbit from the ground. On the other hand, if you had a giant ... spacedock ... that you could seal off from space and pressurize ... you could even build the components in space too. :techman:

Star Trek definitely had its sciency elements, sure, but there was far too much handwavium and unobtanium for me to consider it "hard".

So building the same ship with all the same handwavium and unobtanium on the ground instead of in space would make it more "hard"?
 
There is also good reason to built inside a structure like Spacedock if it can be pressurized, protection against radiation, and so forth -- things that can't be done in the other "drydock" framework structures.

ST:TMP's drydock workers are already pressurized - with spacesuits - and the film's technical advisor, Jesco von Puttkamer, gave the complex an orbital altitude of 1680 kilometers and inclination of 46 degrees so A). it is sufficiently high to render atmospheric drag a non-issue, B). it passes over San Francisco three times a day for LOS beaming to and from Starfleet Command, and C). it orbits well within the Inner Van Allen Radiation Belt, thus employing the planetary magnetosphere to protect construction crews from particulate radiation events, whether they be protons generated by solar flares or galactic cosmic rays.

TGT

Those figures don't make sense. This web site can calculate orbital periods for circular orbits. Plugging in 1680 km yields a period of 2 hr 3 min 52 sec. It would go over San Francisco 11.6 times a day. You want an orbital altitude of 13900 kilometers for a period of 8 hours (3x a day). TMP technical adviser, Jesco von Puttkamer, was off by almost a factor of 10!

Also, the inner Van Allen radiation belt extends from an altitude of 700–10,000 km (0.1 to 1.5 Earth radii) above the Earth's surface according to wikipedia. 1680 km would make the orbit pass through the belt as the space station neared the equator. However, a 13900 km orbit would pass between the inner and outer radiation belts and through neither.

Also, orbital inclination isn't enough to determine if the orbit goes above San Fransisco. Orbital inclination is defined as the angle that the orbit is changed from the equator. However, we don't know the longitude of the ascending node. It is possible for an orbit with an inclination of 46 degrees to not pass over SF, but for a polar orbit to go over the city.

Are you sure Jesco von Puttkamer gave you the correct information?
 
Space would suck without a spacesuit or shuttle of some kind, but since they'd have those...
Working in space sucks even with a space suit. Ask an astronaut.

No, but we're building a space station in orbit.
No we're not. We're assembling it in orbit from sections built on the ground. Ask an STS crew to build even one of those sections in orbit and they'd tell you exactly where you could shove a booster rocket.

...which are kind of busy trying to finish up the space station.
A space station does not make space into a friendly working environment. Just slightly better.

On the other hand, if you had a giant ... spacedock ... that you could seal off from space and pressurize ... you could even build the components in space too. :techman:
You're getting your terminology wrong. A drydock would be sealed and pressurized. A spacedock would be open to space. We've never seen a repair or construction job take place in a sealed drydock. There is no precidence for it in all of Trek. Building on the ground, however, at least in large sections, DOES have precidence.

So building the same ship with all the same handwavium and unobtanium on the ground instead of in space would make it more "hard"?
I find it easier to believe that starships are mostly built where they can be most easily worked on by the most people, yes. Building and assembling everything from the circuits to the deck plates in a vacuum, in a space suit, in free fall, is insane.
 
I thought the large space-station in The Search for Spock was built as a drydock. I.E. Pressurized so that work can be done on starships easily. They could have a forcefield at the door to contain the atmosphere. Also, it would explain the spotlights (from dust in the pressurized atmosphere.

See this image er-spacedock-st3.jpg showing the Enterprise and Excelsior in Spacedock from this web page:

http://www.ex-astris-scientia.org/scans/constitution1.htm
 
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I thought the large space-station in The Search for Spock was built as a drydock. I.E. Pressurized so that work can be done on starships easily. They could have a forcefield at the door to contain the atmosphere. Also, it would explain the spotlights (from dust in the pressurized atmosphere.

http://www.ex-astris-scientia.org/scans/other/er-spacedock-st3.jpg
It might have been - though there was nothing to prove it. If it were I'd wonder why the lounges needed windows, why we never saw ship assembly there, why it was called a "spacedock", and why their "drydocks" were obviously open to space.

...and hotlinking is bad.
 
It might have been - though there was nothing to prove it. If it were I'd wonder why the lounges needed windows, why we never saw ship assembly there, why it was called a "spacedock", and why their "drydocks" were obviously open to space.

...and hotlinking is bad.
*shrug* Why do you drive on a parkway but park on a driveway?

...sorry about the hotlink. Is that better?
 
I thought the large space-station in The Search for Spock was built as a drydock. I.E. Pressurized so that work can be done on starships easily. They could have a forcefield at the door to contain the atmosphere. Also, it would explain the spotlights (from dust in the pressurized atmosphere.

http://www.ex-astris-scientia.org/scans/other/er-spacedock-st3.jpg
It might have been - though there was nothing to prove it. If it were I'd wonder why the lounges needed windows, why we never saw ship assembly there, why it was called a "spacedock", and why their "drydocks" were obviously open to space.

...and hotlinking is bad.
*shrug* Why do you drive on a parkway but park on a driveway?
This goes a bit beyond terminology. Why would you build a starship in a vacuum when you can do it much more safely in a pressurized drydock?
 
It might have been - though there was nothing to prove it. If it were I'd wonder why the lounges needed windows, why we never saw ship assembly there, why it was called a "spacedock", and why their "drydocks" were obviously open to space.

...and hotlinking is bad.
*shrug* Why do you drive on a parkway but park on a driveway?
This goes a bit beyond terminology. Why would you build a starship in a vacuum when you can do it much more safely in a pressurized drydock?
That's why I think it was built in a pressurized drydock, or on Earth. TMP's open-to-space drydock was probably a parking lot for system testing, fueling, and as a "launch pad" away from earth, etc.
 
*shrug* Why do you drive on a parkway but park on a driveway?
This goes a bit beyond terminology. Why would you build a starship in a vacuum when you can do it much more safely in a pressurized drydock?
That's why I think it was built in a pressurized drydock, or on Earth. TMP's open-to-space drydock was probably a parking lot for system testing, fueling, and as a "launch pad" away from earth, etc.
Maybe, but we've seen a lot more open-to-space ship construction/refitting/repair than just in TMP.
 
Those figures don't make sense. This web site can calculate orbital periods for circular orbits. Plugging in 1680 km yields a period of 2 hr 3 min 52 sec. It would go over San Francisco 11.6 times a day. You want an orbital altitude of 13900 kilometers for a period of 8 hours (3x a day). TMP technical adviser, Jesco von Puttkamer, was off by almost a factor of 10!

But does that website take into account Earth's sidereal rotation during one orbital period?

Van Allen radiation belt extends from an altitude of 700–10,000 km (0.1 to 1.5 Earth radii) above the Earth's surface according to wikipedia. 1680 km would make the orbit pass through the belt as the space station neared the equator. However, a 13900 km orbit would pass between the inner and outer radiation belts and through neither.

My source for the Inner Van Allen Radiation Belt's geometry is Essential Spaceflight Dynamics and Magnetospherics by Rauschenbakh, Ovchinnikov and McKenna-Lawlor (Kluwer Academic Publishers, 2003) and, as I pointed out in an earlier thread, the dry dock and space office complex would only pass through the South Atlantic Anomaly component of the IVARB which is even today only a minor inconvenience for the ISS.

Also, orbital inclination isn't enough to determine if the orbit goes above San Fransisco. Orbital inclination is defined as the angle that the orbit is changed from the equator. However, we don't know the longitude of the ascending node. It is possible for an orbit with an inclination of 46 degrees to not pass over SF, but for a polar orbit to go over the city.

Are you sure Jesco von Puttkamer gave you the correct information?

If I may quote from his German-language translation of Gene Roddenberry's Star Trek: The Motion Picture novelization (Star Trek: Der Film, Moewig Verlag, 1980):

"Hoch über der Erde, in einer Umlaufbahn von 1680 Kilometer Höhe und mit einer Bahnneigung von 46 Grad, umkreiste das riesige Raumdock den blauen Planeten einmal in zwei Stunden. Dreimal täglich geriet es in Sicht des Starfleet-Hauptquartiers von San Francisco."

You can translate it yourself here.

TGT
 
Working in space sucks even with a space suit. Ask an astronaut.
Yes, it's a lot of work, so? It's easier than trying to launch a ship the size and shape of a starship from the ground, and easier than trying to build it there too, for that matter.

No we're not. We're assembling it in orbit from sections built on the ground. Ask an STS crew to build even one of those sections in orbit and they'd tell you exactly where you could shove a booster rocket.
You're being unnecessarily anal, and yet still fail to prove any kind of point.

A space station does not make space into a friendly working environment. Just slightly better.
By that logic, neither would a ship, and going into space is simply too dangerous for us to attempt at all. You do realize this is a show about exploring space, right?

You're getting your terminology wrong.
And you're being anal again.

A drydock would be sealed and pressurized. A spacedock would be open to space.
It might irritate you, but that isn't how it's been established in Trek.

We've never seen a repair or construction job take place in a sealed drydock.
No, it's only been talked about.

There is no precidence for it in all of Trek. Building on the ground, however, at least in large sections, DOES have precidence.
Ah yes, one blurry image on a small computer readout. We've also seen the skeletal from of a Galaxy class starship being skinned out in orbit of Mars, and with a much better view than a small computer screen that was in an alternate universe anyway.

I find it easier to believe that starships are mostly built where they can be most easily worked on by the most people, yes. Building and assembling everything from the circuits to the deck plates in a vacuum, in a space suit, in free fall, is insane.
They can travel faster than light, convert people from matter to energy and back again, but somehow building a ship that would be ungainly on the surface is somehow more believable? :wtf: How exactly, especially since I'm not talking about assembling everything from the circuits to the deck plates in a vacuum?
 
They have antigravity, super-powered thrusters, static warp fields that nullify mass, and who knows what else. By your own logic boosting a ship from the ground would be a cinch. Unless we see it take off in one piece, I maintain that it'll be broken down, boosted in sections, and finalized in orbit.

As to drydock/spacedock - that's not being anal. That's common sense. If they have pressurized docks, why build in one that's open to space?
 
Those figures don't make sense. This web site can calculate orbital periods for circular orbits. Plugging in 1680 km yields a period of 2 hr 3 min 52 sec. It would go over San Francisco 11.6 times a day. You want an orbital altitude of 13900 kilometers for a period of 8 hours (3x a day). TMP technical adviser, Jesco von Puttkamer, was off by almost a factor of 10!

But does that website take into account Earth's sidereal rotation during one orbital period?

Thanks. I forgot about that. The 1680 km orbit's period is almost 1/12th the period of Earth's rotation. Say at hour 0, both the station and SF are over each other. After 12 hours, the station would be on the other side of the Earth, right? Then after 24 hours, it is again over SF. So wouldn't it be over SF only 1 time a day, instead of 3 times a day? I'm trying to figure this out.

Van Allen radiation belt extends from an altitude of 700–10,000 km (0.1 to 1.5 Earth radii) above the Earth's surface according to wikipedia. 1680 km would make the orbit pass through the belt as the space station neared the equator. However, a 13900 km orbit would pass between the inner and outer radiation belts and through neither.
My source for the Inner Van Allen Radiation Belt's geometry is Essential Spaceflight Dynamics and Magnetospherics by Rauschenbakh, Ovchinnikov and McKenna-Lawler (Kluwer Academic Publishers, 2003) and, as I pointed out in an earlier thread, the dry dock and space office complex would only pass through the South Atlantic Anomaly component of the IVARB which is even today only a minor inconvenience for the ISS.
Looked that book up on Google Book Search. Are you sure you are reading it correctly?

Also, orbital inclination isn't enough to determine if the orbit goes above San Fransisco. Orbital inclination is defined as the angle that the orbit is changed from the equator. However, we don't know the longitude of the ascending node. It is possible for an orbit with an inclination of 46 degrees to not pass over SF, but for a polar orbit to go over the city.

Are you sure Jesco von Puttkamer gave you the correct information?
If I may quote from his translation of Gene Roddenberry's Star Trek: The Motion Picture novelization (Star Trek: Der Film, Moewig Verlag, 1980):

"Hoch über der Erde, in einer Umlaufbahn von 1680 Kilometer Höhe und mit einer Bahnneigung von 46 Grad, umkreiste das riesige Raumdock den blauen Planeten einmal in zwei Stunden. Dreimal täglich geriet es in Sicht des Starfleet-Hauptquartiers von San Francisco."

You can translate it yourself here.

TGT
Doesn't mean it's the correct information, though. It is important to check it.... at least as an exercise to learn about orbital parameters. :)
 
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You're getting your terminology wrong. A drydock would be sealed and pressurized. A spacedock would be open to space.

You know, the reason why fans tend to call the ST:TMP structure a "dry dock" is because the model makers painted the words "dry dock" onto the actual photographic miniature.

TGT
Okay. I don't really care so much about terminology as I do function. WHY in the vast weirdness of space would you do a major construction job in a vacuum when you could do it on a planet's surface or in an otherwise pressurized environment?
 
They have antigravity, super-powered thrusters, static warp fields that nullify mass, and who knows what else.
So?

By your own logic boosting a ship from the ground would be a cinch.
not really.

Unless we see it take off in one piece, I maintain that it'll be broken down, boosted in sections, and finalized in orbit.
That makes no sense.

As to drydock/spacedock - that's not being anal. That's common sense.
It's being anal because that's not actually how they're referred to on the show.

If they have pressurized docks, why build in one that's open to space?
Less material to build and easier to move assemblies into and around without having to worry about depressurizing and repressurizing. That's my theory anyway.
 
Less material to build and easier to move assemblies into and around without having to worry about depressurizing and repressurizing. That's my theory anyway.
With airlocks and transporters they wouldn't have to depressurize and repressurize much, if at all. And in a vacuum you'd have a whole other set of problems - like working in spacesuits for months on end, and death.

Why is it so easy for you to imagine a vacuum-only construction job, but not a planet-based construction followed by a boost, whole or in sections, by anti-grav tugs?
 
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