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What does "finish the space station" mean? Actual Answer
Jim Kingdon wrote:
Meaning that space station modules are loaded when the orbiter is horizontal (before it is stacked with the tank and solids in the VAB)? Nop. Modules are loaded at the pad when the shuttle is vertical. That is what the rotating service structure is for. and consider that the shuttle gives at least 3g of acceleration, so everything inside a module needs to be stowed tightly whether the shuttle is horizontal, vertical, on top of below. And because the shuttle needs to be able to land in case of an abort (either back at pad or across the atlantic), the modules need to also be able to land horizontally. |
#22
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What does "finish the space station" mean? Actual Answer
I have not see a "long answer". Short answer NASA wants the shuttle to continue, because of jobs. long answer if all the shuttles were destroyed by a teerrorist attacking the VAB some other way would be found to get the modules up/ |
#23
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What does "finish the space station" mean? Actual Answer
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#24
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What does "finish the space station" mean? Actual Answer
it should be possible (and Jim said) to get
them to ISS, but it would cost quite a bit of time, re-planning, and money to do so. I'd bet that this would quickly lead to a "redesign" of the "ISS Assembly Complete" configuration that involved simplifying what was sent up to ISS on expendables in order to reduce cost and to "finish" the station sooner. Jeff -- I think that if the shuttles were permanetely grounded it would likely save money. basck out the cost of shuttkle operations and that leaves tons of money for redesign and launching on expendables |
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What does "finish the space station" mean? Actual Answer
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#26
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What does "finish the space station" mean? Actual Answer
jeff findley writes:
Take a look back at the beginning of the ISS program and the disaster that NASA made of the US propulsion module/Interm Control Module programs. In the end, the US seems to have abandoned all hope of producing such a module themselves. Instead, we've locked ourselves into a dependency on Russia for attitude control of ISS. The US attitude control system's CMG's can't desaturate themselves, and they can't provide any reboost or translational capability (to avoid orbiting debris in an emergency). Google finds lots of things, like this: http://www.space.com/news/spacestati...ug_000708.html http://www.spaceref.com/news/viewpr.html?pid=2074 http://www.spaceref.com/news/viewpr.html?pid=5351 These articles paint a bleak picture of these programs. The current assembly sequence doesn't list anything about propulsion (because the US won't have any): http://www.spaceflight.nasa.gov/shut...ure/index.html Here's a page with cancelled ISS components: http://www.geocities.com/i_s_s_alpha...nc.htm#shuttle Here's their short list of cancelled components: Propulsion Module Interim Control Module Docking and Stowage Module Docking Compartment-2 Crew Return Vehicle Orbital Space Plane 2nd Generation Reusable Launch Vehicle Assured Access to Space Station Jeff -- Remove "no" and "spam" from email address to reply. If it says "This is not spam!", it's surely a lie. |
#27
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What does "finish the space station" mean? Actual Answer
Here's their short list of cancelled components: Propulsion Module Interim Control Module Docking and Stowage Module Docking Compartment-2 Crew Return Vehicle Orbital Space Plane 2nd Generation Reusable Launch Vehicle Assured Access to Space Station Jeff We might be better of if ISS itself was on that list |
#28
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What does "finish the space station" mean? Actual Answer
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#29
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What does "finish the space station" mean? Actual Answer
"Jim Kingdon" wrote in message news How many of those birds were loaded vertically at the pad, and thus were never intended (except in an abort) to be in the horizontal position? Such birds would not have the trunnion pins etc, and thus the 'adapter' would be vastly simpler. Meaning that space station modules are loaded when the orbiter is horizontal (before it is stacked with the tank and solids in the VAB)? I'm not sure, but keep in mind a number of items were loaded into the shuttle while in the vertical position, hence the rotating service structure. Or are the space station modules designed to be returned via shuttle at end of life and/or for repair? Or....? As for the Shuttle-Titan switch in the 90's, I actually don't know the details. But I'm pretty sure I saw in Av Week a mention of the adapter as one of the drivers for the high cost of the Titans. |
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