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SpaceX Mars / Re: IAC 2017 -- ITS v0.2
« Last post by MATTBLAK on Today at 10:59 AM »
I predict Elon has an EMDrive application up his sleeves..
Ill take that bet!!!
So Elon is actually Darius Tanz?! :o
Anyway, I'm off of this "slave labor" distraction.  It's been debunked often enough before.
I would like to see a link to those posts that clearly debunk it. I've seen many debates on the matter, and no one actually disputed it as much as you. Glassdor & other sources frequently mentioned that those 50 hours are "expected minimum", and many people work much more. Life / work balance being non-existant at SpaceX and people frequently burning out, etc.

I agree that reusability is pretty much proven, and we can just argue about exactly how much savings will it bring, but the cost reductions so far were pretty clearly at least partially from cheap workforce. It would be useful to stop pretending otherwise, and maybe rather start discussing why are people working for so much less money, and how (whether) can other companies motivate their employees that much.

To truly quantify it, we would also need some real numbers and does the labor savings actually go into the
launch price or are they using it to do other things.  I have a feeling that even if they had exactly the same labor cost as others in the industry, the launch costs would be the same. They would just have to cut back on some of the R&D.
SpaceX Mars / Re: IAC 2017 -- ITS v0.2
« Last post by DJPledger on Today at 10:52 AM »
I predict Elon has an EMDrive application up his sleeves..
Perhaps this could be Elon's version of VASIMR.

Perhaps we should place bets on Elon announcing a VASIMR, or NTR, or any other new technology at IAC2017.
SpaceX Mars / Re: IAC 2017 -- ITS v0.2
« Last post by Explorer on Today at 10:46 AM »
Besides the obvious something unexpected...

Methane upper stage for Falcon 9 raising the GTO payload enough to make Falcon Heavy obsolete.
SpaceX Mars / Re: IAC 2017 -- ITS v0.2
« Last post by Semmel on Today at 10:37 AM »
I dont want to speculate what he will present. However, I which to understand how cargo ITSy will work. That is, for satellite deployment in Earth orbit. How Earth EDL is supposed to work. How far is the development of the small methane thrusters? How is the center of gravity managed? How does steering work? After all, its a big, empty tube for the most part coming back from orbital velocity. This is probably the most tricky and so far never been done part next to the FFSC Raptor. Shuttle et al. were all heavy, structurally sturdy things. ITSy will be nothing like that.

And if he doesnt mention it in his presentation, hopefully someone will ask him in the Q&A section ;)
(for members of this forum at least).

Sheesh.. Every time I visit this forum to ask a serious question or when I want to share my opinion on something trivial as this stupid movie, I am reminded again that it is filled up to the rim with snobs.
Consider this my last post here.
Missions To Mars (HSF) / Re: Scaling Agriculture on Mars
« Last post by guckyfan on Today at 10:05 AM »
on Mars nitrogen fixation will be more efficient if done chemically, and this will probably be true until we terraform the place.

It is even true on earth. Most of our nitrogen fertilizer is produced chemically.
SpaceX Mars / Re: IAC 2017 -- ITS v0.2
« Last post by KelvinZero on Today at 10:02 AM »
No solid predictions, but what I would like is ITS to transform into "Aha!"

I don't think Elon is lying about Mars intentions, but I also don't for a moment believe he is Noah, beginning a business model that will only pay off when colonists are flooding to mars at $200k a ticket.

I also don't believe for a moment that he will "just stumble" upon a commercial use of this raptor engine and this wide (possibly 9m?) diameter. I don't believe he designed a 12m version and only then noticed it can't be transported.

At some point he is going to reveal the convincing commercial purpose of some application of a wide rocket using raptors. It will be something he has carefully researched all along, before the 12m rocket, before it became a (possibly) 9m rocket. Commercial success on earth is 99% of the hurdle between here and funding  ITS development. It is not the last thing he thinks of but the first, it is just the last thing he wants to tell his competitors.

Someone on a thread concerning moon architectures recently expressed disappointment that ITS has not been included in any plans. But currently it is a 12m rocket that might be a 9m rocket, or something else. That is not even a paper rocket because you cannot design around such unknowns like that even on paper.

However you can sell a rocket before it is built, as with the Falcon Heavy. I look forward to SpaceX having specified the actual rocket they will build next that people can actually consider buying future flights of.
Indian Launchers / Re: Indian launch schedule
« Last post by Salo on Today at 10:02 AM »
The 450-kilogram NovaSAR, whose total cost has been estimated at about 50 million British pounds ($65 million), is a partnership between the British government and SSTL. The government contributed about 21 million British pounds to NovaSAR’s development and launch.

The satellite is scheduled for launch in early 2018 aboard an Indian PSLV rocket. The rocket is recovering from an Aug. 31 failure — its payload fairing failed to separate — and Indian authorities hope to return to flight late this year. The NovaSAR is scheduled for the flight after that.
SpaceX Mars / Re: Should the ITS have a launch escape system?
« Last post by DreamyPickle on Today at 09:57 AM »
How about building small escape pods into the walls of the ship? They would be shaped like Soyuz or Dragon except with the engines pointing the other way. In case of danger the crew enters those pods through hatches. If something goes wrong the engines fire and they "pop" right out at an angle.

These pods would have heat-shields normally facing outwards through what are structurally "windows" through the hull. They would be small, barely large enough that people can fit while strapped in. This could also work from orbit, they would just have to linger until on top of a suitable splashdown location for reentry.

The problem with such a system is that it would be still quite large and require a lot of work to develop and test properly.
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