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bbehe
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I think that was just an accelerated look at what would happen. Musk already said it would take 5 refueling trips to supply the vehicle, so I'd assume they'd use a few boosters. I also can't imagine they're be able to relaunch within a few hours considering the amount of inspections (I'm assuming) that would go into it. So yeah, ideally they'd have 2-3 launches primed and ready to go.

Also, what I noticed, he never shows the ship with it's solar panels deployed on Mars, is he not planning on using that for power generation? Also, how easy is it to generate fuel on Mars, especially in the amount required to lift a body that big into orbit and do a Hohmann transfer back to Earth?

I appreciate what he's trying to do, but it really seems like he's skipping from Steps 1 and 2 to Step 99.

9/28/2016 11:39:20 AM

LoneSnark
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Quote :
"Bigger question though -- why reuse the exact same booster stage to send both crew and fuel? The concept video had it landing at the launch pad, a crane putting a new upper stage on, and it launching again. Why not just have the fuel stage prepped and ready to go on a different pad and have it launch shortly after the crew? That's just one of many strange things about this concept that I've observed."

They most likely will do just that. After the booster returns, I'm sure they'll do some checks on it before launching it again. But, they won't have six boosters built to refuel five times. These boosters cost a fortune. And by simply waiting long enough to do the checks, they can launch that booster again while the passengers wait in parking orbit. I suspect they'll have three boosters ready to launch and alternate between them.

Quote :
"Also, what I noticed, he never shows the ship with it's solar panels deployed on Mars, is he not planning on using that for power generation? Also, how easy is it to generate fuel on Mars, especially in the amount required to lift a body that big into orbit and do a Hohmann transfer back to Earth? "

Of course. There will be a hundred people there with nothing better to do than feed the fuel making factory with solar power and melted permafrost.

Of course, I'm hoping society is polite enough to let them bring a nuclear reactor.

9/29/2016 4:10:04 AM

mrfrog

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http://giphy.com/nasa

12/10/2016 7:11:57 AM

Nighthawk
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https://www.youtube.com/watch?v=qIGt7mFk7as

Michoud Assembly Facility got hit by at least one twister. Looks pretty bad. Hope all are safe.

2/7/2017 8:23:22 PM

Wraith
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https://www.nasa.gov/feature/nasa-to-study-adding-crew-to-first-flight-of-sls-and-orion

Got some push from DC to look into the possibility of a crewed launch for EM-1. Exciting, yes, but very risky. I don't think it will go anywhere.

[Edited on February 16, 2017 at 3:05 PM. Reason : ]

2/16/2017 3:03:17 PM

Master_Yoda
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So Ive been doing a ton of reading lately of Apollo and early space flight journals since all the folks who worked it are releasing memoirs. Compared to the challenges they had, running a rocket first time with a crew just seems plain dumb. Look at SpaceX. They've run theirs how many times and then blow one up on a simple test, much less a real launch? A few folks know there were some test flights between Apollo 1 and 7 , but most dont realize there were loads of tests unmanned even before Apollo 1 of the equipment.

2/20/2017 9:36:14 PM

Mr. Joshua
we want chilly willy
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Elon Musk says SpaceX will send two tourists to the moon next year.

2/27/2017 5:43:12 PM

dweedle
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*around the moon

2/28/2017 8:49:23 AM

Mr. Joshua
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I got excited and just copied the CNN breaking news headline.

2/28/2017 9:05:42 AM

Wraith
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Not to be outdone by NASA's announcement last week, SpaceX decided that THEY were going to be the craziest space organization in existence.

Both ideas are horrible.

2/28/2017 10:51:25 AM

bbehe
#TeamGyro
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So realistically, that would be the what? Maybe 3 or 4th flight of Falcon Heavy? And 2nd or 3rd manned flight of Dragon 2?

2/28/2017 11:34:40 AM

Wraith
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I'm not up to date with their expected launch schedule but the concept of sending untrained people around the moon next year WHEN THEY HAVEN'T EVEN LAUNCHED ONE PERSON into space yet is crazy. I'm not saying it can't be done -- if they pull it off then kudos to them but I can't begin to imagine the safety concerns and corners they would have to cut to get there. Their engineers already work something like 80/hr weeks. I know the Dragon was originally designed for deep space but the logistics involved with sending people around the moon are so different from LEO or sub-orbital. I'm sure they'll get around to it, but next year just isn't reasonable. I'm fairly certain this announcement was a marketing ploy to generate hype (and believe me, the armchair engineer fanboys are coming out of the woodwork...) knowing full well they won't meet that goal.

2/28/2017 1:57:56 PM

bbehe
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I mean, they've been pushing back Falcon Heavy for a while now, plus they pushed off Red Dragon until the 2020 window instead of 2018. I would agree this is publicity, but it could be a hail mary like Apollo 8 was.

I would be curious at what the crew makeup of this planned mission is. I know Dragon seats 7, but I really doubt they'd send a full bird up. I'd guess 2 astronauts + 2 tourists.

Like you said though, it's amazing their considering this since they haven't even launched a single manned craft into space. Hate to start that TLI burn and then realize that your untested space toilet doesn't work.

2/28/2017 2:55:35 PM

TerdFerguson
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Quote :
"Hate to start that TLI burn and then realize that your untested space toilet doesn't work."


Sounds like the plot line of an awesome sci-fi thriller!!!

2/28/2017 3:07:11 PM

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