Dude, spacewalking and zero-G construction isn't justa by-the-way skill you happen to pick up. Its VERY HARD, and VERY dangerous, and many time as exhausting as working on the ground with air around you. Ask any astronaut who's done repair mission spacewalks and he'll tell you the same thing.
If you want a deep labor pool of master builders, laborers and engineers to build your ship, its a good idea to build it in such a way as not to drastically limit the people available to do the job by requiring all to possess a very dangerous and difficult skill that makes every job harder, in addition to their chosen professions.
:sighs: Are you listening?
Let me tell you again in a nice summation.
a. It's only tough now because we're limited in our technology and space suits, and much better lighter ones are already on the way.
b. It's not dangerous in comparison to other things. I don't know why you keep your mind shut on this. A car will kill you faster, more often and is more likely to do so, then floating in space. Yet we're all driving them, and even doing stunts with them. Going diving is far more dangerous than floating around in space, not only will water kill you equally quick, it's filled with jagged edges, predator species, and dangerous defensive animals, yet we go diving for fun. And there are many other things on this planet that are far, far, far more dangerous than floating in a space suit. It really only seems dangerous because you're afraid of the alien concept of nothing out there beyond your suit.
c. Have you ever WATCHED Star Trek? Ever heard of a little concept called orbital sky diving? People FOR FUN jump out of a space ship in a space suit at the very edge of a planet's gravity well and plummeth down the atmosphere! FOR FUN! Massive amounts of people will be living in space, on space ships, on space stations. They'll go to uinhabited planets with lower gravity and thus far more magnificent snow, and go ski in space suits. Hell, there's a moon in our solar system with exactly that characteristic, and there are already skiing space-enthusiasts imagining to go do it today. No doubt, by then, kids will jump out of an airlock of a space station with a space suit on, to go play! You limit yourself in the number of master builders and their skills, not the people who can space walk. Just about everyone and their grandmothers will be able to do it. And when they go train to be engineers and the rare person that can't yet, it'll autamotically be part of their education.
Then why are you trying to make it look like they're built in big chunks and moved to space?
Because that's how it looks to me, and makes the most sense TO ME.
Maybe you should go watch it again. The warp nacelles are exactly where they should be, if the ship was in tact. Are you going to tell me now, when they construct this in part, they'll go, "Ah, hell, let's make it more difficult on us, and build the parts in the exact same places as if we're building it intact!?" It makes no sense.
Also, it making sense to YOU, is the problem. When you watch that trailer you shouldn't be thinking about trying to morph the visuals to match your sense, you should simply look what's there. Because just because it makes more sense, is obviously not why the ones who made the trailer had the Enterprise being built upon the Earth.
You want to be closed-minded, wildly optimistic about the ease of working in space, and utterly shut out any possible advantages of working on the ground? Fine. You're the one who's limited, not me. I see either one as a possibility, with each having distinct advantages.
I'm not closed-minded, you are, Abrams and co. are if the trailer is the way the movie is made and it isn't just metaphor. You're too closed-minded to look beyond present-day realities distorted by your fear of the unknown to consider any other option than that space walking is horribly dangerous now, and unimaginably difficult now, and will remain to be so for the next 300 years without there apparently being any technologically breakthroughs that make it easier. (Never mind that lighter and easier suits are already being designed, never mind that that would make the whole concept of Star Trek useless.) You then also close your mind to what we already know of Star Trek, as well as all the things we're imagining and working toward doing today.
Me, I take all those things into my mind and allow it to bring forth a (still modifiable) picture, while you remain fixed on just "it's dangerous, it's difficult, can't think of it as anything else." That makes ME open-minded, and you and the idiots in Abrams production who has starships being built planet-side closed-minded.
The entire concept of building a ship like the Enterprise on the ground and trying to hoist it into orbit is idiotic from the get-go.
Not when you have anti-grav, really. And there IS precedent for starship components being built on the ground. Its safer. Its easier.
:sighs: It's not safer, and it's NOT easier.
The less construction done in a hazardous zero-G, zero-atmosphere,
Which makes it LESS hazardous when you're dealing with massive objects like a parts of a starship.
high-radiation environment the better.
Radiation in space is barely a problem today, why would it be insurmountable and dangerous 300 years hence? It makes no sense.
At least, that's one way it could be looked at. I'm not saying building it in orbit is dumb... but building at least the components on the ground isn't either. It isn't the Titanic, and it isn't the same circumstances. The Titanic wasn't built in the water, either.
When by components you mean a screw or a computer console, you MAY BE right, and I highly stress MAY BE for some parts. (This of course, goes out the window the moment you have replicators and you can just have a replicator on a small tether or thrust assembly right next to you.) The big compartments like a saucer, a nacelle: nope. However, a tiny case can be made for that.
But again, the trailer didn't show us parts being built, hauled up, and assembled there, it showed the entire ship being constructed on the ground.
It's a second environment by the 23rd century.
Maybe in terms of travel, sure, but your average Joe Schmo construction worker isn't likely to have spacewalking and zero-G assembly on his resume. That kind of thing would probably require specialists.
The "average Joe Schmo construction worker" is a highly trained engineer, who if he goes to work on starships will have space work in his training. More likely than not, the guy was playing in space suits out in vaccuum when he was a kid. His parents might very well have taken him on a ski vacation to one of the planets in the solar system.
One thing that occurred to me is that we've never really seen a true "drydock" in Trek. In modern terms its a repair dock in which the ship is taken out of the water for ease of repair/overhaul. Shouldn't a drydock in Trek be a facility in which a ship is taken at of the vaccum of space and put in a pressurized environment?
No, such thing does not exist, there's not point. Which exactly should show you that there's no point in building a ship on the ground. Ships are built in space, repaired in space, and put out to pasture in space.