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Old 10-24-2011, 11:07 PM   #76
Orbinaut Pete
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Originally Posted by MaverickSawyer View Post
 Let me clarify: The Dragon will "park" within reach if the ISS RMS, which will grapple the Dragon, then berth it at the station. I don't know which CBM they'll be docking it to, though.
That's correct. They'll be berthing Dragon to the Node 2 Nadir CBM.
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Old 10-24-2011, 11:11 PM   #77
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i thought it would be docking in the US module CBM's
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Old 10-24-2011, 11:13 PM   #78
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Actually, I'd say it'll dock to Harmony, Node 2. In addition to where it's shown as docking in the various drawings and diagrams, it's also one of the less cluttered nodes from what I can tell with one of the few free CBMs.
Also, the CBMs are only on the "U.S. side." The U.S.-owned nodes connect to the European and Japan modules via CBM as well as the two Japanese modules to each other.
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Old 10-24-2011, 11:17 PM   #79
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Originally Posted by mojoey View Post
 i thought it would be docking in the US module CBM's
Yes - Node 2 is a US module (although it was built in Italy).
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Old 10-25-2011, 12:20 AM   #80
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Universe Today: Here There Be Dragons: SpaceXís Spacecraft Arrives at Launch Complex 40
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Old 10-25-2011, 12:29 AM   #81
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What a cool image: flown hardware, hardware to be flown, and hardware being built.

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Old 10-25-2011, 06:32 AM   #82
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Wait, I thought they were reusing the capsule?
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Old 10-25-2011, 06:37 AM   #83
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Originally Posted by Jarvitš View Post
 Wait, I thought they were reusing the capsule?
They probably will in the future. But they probably want to try new ideas and it is probably easier for them to build new ones at this stage.
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Old 10-25-2011, 08:32 AM   #84
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And perhaps no one wants to find out limits of material fatigue when the whole program is at stake.
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Old 10-25-2011, 11:12 AM   #85
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Wait, I thought they were reusing the capsule?
Just because they plan to at some point doesn't necessarily mean they need to. And gathering flight experience before they step into reuse could be a good idea.

I'm not sure, but I think I've read somewhere that SpaceX proposed to NASA flying a new Dragon with every COTS flight.
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Old 10-25-2011, 01:07 PM   #86
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Originally Posted by Jarvitš View Post
 Wait, I thought they were reusing the capsule?
Because NASA is unsure about the costs associated with re-usability (i.e. will it cost more than planned, like with Shuttle?), NASA have told SpaceX that each Dragon flight to ISS must be a brand new capsule, in order to keep costs predictable. Flown Dragons will only be re-flown on DragonLab missions. I don't know whether NASA will change their policy in a few years, once re-usability has (hopefully) been proven.
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Old 10-25-2011, 01:32 PM   #87
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Because NASA is unsure about the costs associated with re-usability (i.e. will it cost more than planned, like with Shuttle?)
It really seems that the Shuttle has left a bad taste in NASA's mouth- the sentiment that reusability is untrustworthy (or, I believe, in the words of ex admin Griffin, that "reusability is a myth").

Dragon isn't the Shuttle, though. Surely concern about failures compromising payload delivery or station safety would be more pressing? If cost is the issue, why not pay the same as for a new Dragon flight, or fund a reusability 'experiment' and leave SpaceX to cover their cost overruns if their reusability process fails to match to their cost expectations?
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Old 10-25-2011, 04:05 PM   #88
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Parabolic Arc: SpaceX Moves to Resolve Software Issues:
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Space News reports that SpaceX has moved to resolve previous concerns about the software development for its Dragon spacecraft, which is set to visit the International Space Station next year:
A generally positive outside review of the two firms under contract to deliver cargo to the international space station (ISS) contained strong concerns about software development procedures at Space Exploration Technologies Corp. (SpaceX) — concerns the company and the head of a NASA safety panel said have since been addressed….
{...}
Space News: After Pinging SpaceX Software, Review Team Softens Stance
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Old 10-27-2011, 05:34 PM   #89
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Spaceflight Now: Enhanced Dragon capsule begins launch preparations
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Old 11-16-2011, 11:39 PM   #90
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Florida Today - The Flame Trench: SpaceX connects Dragon to its trunk



Spaceflight Now: Photos: Assembling Dragon
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