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Bigelow Aerospace, A new Genesis in space
ugordan
post Sep 22 2006, 01:12 PM
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QUOTE (Jim from NSF.com @ Sep 22 2006, 01:54 PM) *
the orbiter at 230K lb

I just love it when you aerospace guys talk pounds, feet, yards, statute miles, nautical miles, imperial miles and god knows what other combinations. MCO, anyone?

Just the other day, while watching STS-115 launch replay, I realized that the miles up and downrange they were talking about weren't nautical but statute. I was under the impression nautical miles were widely used and assumed.


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AndyG
post Sep 22 2006, 01:15 PM
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QUOTE (Jim from NSF.com @ Sep 22 2006, 01:45 PM) *
How are you going to power it? Also, how do get rid of it at the end of the ISS? The additional habitable volume is insignificant

Last issue first: it need not be. There's, what, ~300 cubic metres of payload bay not including the docking adapter. I can't believe that a small hab module - not a working volume, just additional space for the crew and/or tourists - couldn't be built in the next four years, providing more much-needed room. Power - for lighting, ventilation and heating - needn't be a huge amount.

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"Symbol of the work"? It is an inanimate object, it doesn't need a "reward".

I'm reminded of military aircraft. They look ok in museums, but nothing is as inspirational as seeing them fly. Post 2010, to know there's a shuttle permanently berthed at the gleaming, magnitude minus whatever-it-is ISS, rather than slowly falling to pieces as a museum piece, would be a wonderful reminder to people around the planet regarding that "magnificent flying machine" - and maybe it could just spur peoples' memories to recall the second half of Tsiolkovsky's famous quote: "...man cannot stay in the cradle forever."

Andy
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paxdan
post Sep 22 2006, 01:18 PM
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QUOTE (AndyG @ Sep 22 2006, 02:15 PM) *
"...man cannot stay in the cradle forever."


LEO is the cradle.
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djellison
post Sep 22 2006, 01:21 PM
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QUOTE (AndyG @ Sep 22 2006, 02:15 PM) *
Last issue first: it need not be. There's, what, ~300 cubic metres of payload bay not including the docking adapter. I can't believe that a small hab module - not a working volume, just additional space for the crew and/or tourists - couldn't be built in the next four years, providing more much-needed room.


Then why take up the docking port with a Shuttle - just take this small hab module you propose and bolt it onto the end of Node 2 and put the last PMA on the end of it?

It's seems like you've thought of a solution for a problem that doesn't actually exist.

Doug
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Drkskywxlt
post Sep 22 2006, 01:39 PM
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QUOTE (AndyG @ Sep 22 2006, 03:15 PM) *
Last issue first: it need not be. There's, what, ~300 cubic metres of payload bay not including the docking adapter. I can't believe that a small hab module - not a working volume, just additional space for the crew and/or tourists - couldn't be built in the next four years, providing more much-needed room. Power - for lighting, ventilation and heating - needn't be a huge amount.


The US Hab is fully completed, but won't be launched due to the additional cost after the ISS redesign a few years back.

If someone could foot the bill for the launch and attachment, then that would be plenty of room and facilities.

http://en.wikipedia.org/wiki/Habitation_Module
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AndyG
post Sep 22 2006, 02:41 PM
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Bah-humbug! wink.gif

Ok, I can see that they're no takers for the Tsiolkovsky Orbital Museum. Indeed, there's a bit of hatred at the mere romanticism of it all. That, and the current 20M$ a ticket entrance fee.

Right - you asked for it. Here's the hard-engineering-headed side of me talking.

The orbiters have been operating as a fleet of space shuttles up until now. When the last two (Atlantis is to be a hangar queen, I think?) are on their last trip in one direction (given the crew can return in a safer capsule) and the vehicles are no-longer needing to shuttle anywhere, has anyone asked whether flying brakes, wheels, and TPS upstairs makes any sense at all? Think of the mass you could throw out of each orbiter, and the resultant payload you could get in...

Once you consider that, there's a <ahem> further option:

While the angle-grinders are out, if the wings and stabiliser were removed for two one-shot shuttle C-equivalents, NASA would be not be that far off getting a brace of orbital ETs as part of their future freelance LEO gas station. Or at least a bit of orbital real estate that Mr. Bigelow might fancy.

How's that for unromantic?

Andy
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Jim from NSF.com
post Sep 22 2006, 03:19 PM
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QUOTE (Drkskywxlt @ Sep 22 2006, 09:39 AM) *
The US Hab is fully completed, but won't be launched due to the additional cost after the ISS redesign a few years back.

If someone could foot the bill for the launch and attachment, then that would be plenty of room and facilities.

http://en.wikipedia.org/wiki/Habitation_Module


Not "fully completed". The shell was only completed. It was never outfitted. Also the shell is being used for other ground tests.
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Jim from NSF.com
post Sep 22 2006, 03:22 PM
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All these proposals, ignore the fact that disposing of dead orbiter art the completion of the ISS program is a problem, since it has TPS and aerosurfaces. It won't follow a typical ballistic entry
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Jim from NSF.com
post Sep 22 2006, 03:24 PM
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QUOTE (AndyG @ Sep 22 2006, 10:41 AM) *
The orbiters have been operating as a fleet of space shuttles up until now. When the last two (Atlantis is to be a hangar queen, I think?) are on their last trip in one direction (given the crew can return in a safer capsule) and the vehicles are no-longer needing to shuttle anywhere, has anyone asked whether flying brakes, wheels, and TPS upstairs makes any sense at all? Think of the mass you could throw out of each orbiter, and the resultant payload you could get in...

Once you consider that, there's a <ahem> further option:

While the angle-grinders are out, if the wings and stabiliser were removed for two one-shot shuttle C-equivalents, NASA would be not be that far off getting a brace of orbital ETs as part of their future freelance LEO gas station. Or at least a bit of orbital real estate that Mr. Bigelow might fancy.

How's that for unromantic?

Andy



Who is going to fly it up. you made if go from a few abort options to none
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djellison
post Sep 22 2006, 03:27 PM
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QUOTE (AndyG @ Sep 22 2006, 03:41 PM) *
Think of the mass you could throw out of each orbiter, and the resultant payload you could get in...


And what payload are you intending to put in? The current last shuttle launch is volume packed with Node 3 and the Cupola.....

What you're talking about is all great for the pages of a Simon Baxter novel, but it has little relation to what is possible in reality.

You're making up a solution that isn't even slightly feasable for a problem that doesn't exist still.

Doug
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Jim from NSF.com
post Sep 22 2006, 03:32 PM
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QUOTE (AndyG @ Sep 22 2006, 09:15 AM) *
Last issue first: it need not be. There's, what, ~300 cubic metres of payload bay not including the docking adapter. I can't believe that a small hab module - not a working volume, just additional space for the crew and/or tourists - couldn't be built in the next four years, providing more much-needed room. Power - for lighting, ventilation and heating - needn't be a huge amount.


What "much needed room"? They are adding at least 5 more modules.

Bring the $. The ISS and the shuttle are not Legos. PPT engineering is easy and cheap, real engineering isn't

Heating isn't required. Cooling is and the payload bay would be required to be open for the radiators. more things to break down
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Guest_DonPMitchell_*
post Sep 26 2006, 02:53 PM
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Lockheed/Bigelow

"Lockheed Martin and Bigelow Aerospace have entered into a deal to move towards the use of the Atlas V for private manned space flight..."
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Drkskywxlt
post Sep 27 2006, 02:45 PM
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QUOTE (DonPMitchell @ Sep 26 2006, 04:53 PM) *
Lockheed/Bigelow

"Lockheed Martin and Bigelow Aerospace have entered into a deal to move towards the use of the Atlas V for private manned space flight..."


Does anyone have a good answer why NASA didn't look harder at the Atlas V or Delta IV for the Crew Launch Vehicle? Are they expecting the CLV to be cheaper/safer in the long run?
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Jim from NSF.com
post Sep 27 2006, 03:56 PM
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They say the CLV is safer. It definately won't be cheaper. Just the opposite. Read the ESAS
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Rakhir
post Jan 16 2007, 10:02 AM
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Bigelow suffers Genesis II delay

The launch of Bigelow Aerospace's Genesis II has suffered a delay of at least 60 days.
Extra time is required by the launch provider to complete a review of the Dnepr vehicle.
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