Author Topic: Dream Chaser Q&A (including suggestions and improvements)  (Read 414556 times)

Offline Nomadd

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Re: Dream Chaser Q&A (including suggestions and improvements)
« Reply #1260 on: 05/17/2012 12:38 AM »

No, that was an over sold capability of the shuttle and why that it isn't missed.    HST was sold on the capability when it would have been better off at L2.

GSO is the only orbit where repair makes sense.   Until space launch is really cheap, it is more cost effective to launch a replacement spacecraft

 HST would have been useless at L2. It was the best case for LEO servicing there could have been. Maybe not in some worlds of how things should have been, but in the real world where the folks who pay the bills count. It might not have made economic or technical sense considering the money spent, but the fact is, the way it was done worked. Nobody can say any other way would have.
 You have to remember who pays the bills. O'Keefe learned that fast enough.
« Last Edit: 05/17/2012 12:44 AM by Nomadd »

Offline Jim

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Re: Dream Chaser Q&A (including suggestions and improvements)
« Reply #1261 on: 05/17/2012 12:59 AM »

 HST would have been useless at L2.

Wrong, it was a compromise to fly in LEO.  Notice that no other telescopes are in LEO.   It was have had better viewing and would have been a lot cheaper at L2.  Cheaper to build another one.  If you are referring to the mirror problem as useless, that is also wrong.  HST still could have provided some science without correction.
« Last Edit: 05/17/2012 12:59 AM by Jim »

Offline Jim

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Re: Dream Chaser Q&A (including suggestions and improvements)
« Reply #1262 on: 05/17/2012 01:00 AM »
]Nobody can say any other way would have.


Many can say it and are right.

Offline alexw

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Re: Dream Chaser Q&A (including suggestions and improvements)
« Reply #1263 on: 05/17/2012 04:55 AM »
     How does TDRS communication function from EML2?
              -Alex

Offline Jim

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Re: Dream Chaser Q&A (including suggestions and improvements)
« Reply #1264 on: 05/17/2012 10:29 AM »
     How does TDRS communication function from EML2?
              -Alex

it doesn't, need ground stations

Offline mmeijeri

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Re: Dream Chaser Q&A (including suggestions and improvements)
« Reply #1265 on: 05/17/2012 10:38 AM »
GSO is the only orbit where repair makes sense.

What about MEO or EML1/2?
We will be vic-toooooo-ri-ous!!!

Offline baldusi

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Re: Dream Chaser Q&A (including suggestions and improvements)
« Reply #1266 on: 05/17/2012 02:26 PM »
GSO is the only orbit where repair makes sense.

What about MEO or EML1/2?
GSO has a single plane. All your prospective clients are at GSO, so you can keep materiel and instruments there, without paying the plane change tax. MEO, thus, has multiple planes, and thus, is cheaper to send a new craft. There's not a single craft that I know of on EML1 or 2, so I don't see how could you get any business there. May be you mean if there's an eventual station? At which point it the business would be crew and cargo to said station. But the station itself won't be a viable business, as the ISS isn't.

Offline yg1968

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Re: Dream Chaser Q&A (including suggestions and improvements)
« Reply #1267 on: 05/17/2012 06:19 PM »
I doubt that it will ever happen but I was wondering how realistic would Dream Chaser on an Ariane 5 be?

P.S. Sirangelo said in a January 2011 BBC blog/article that it would be possible:
Quote
Looking at the artist's impression of the Dream Chaser atop the Atlas, it reminds me of the European Hermes shuttle and the way it would have been launched on the Ariane 5 if Esa member states hadn't killed it off. Mark Sirangelo says Dream Chaser would work very nicely off the top of an Ariane. Are you interested Europe?

http://www.bbc.co.uk/blogs/thereporters/jonathanamos/2011/01/chasing-the-dream-of-human-spa.shtml
« Last Edit: 05/17/2012 06:22 PM by yg1968 »

Offline Rocket Science

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Re: Dream Chaser Q&A (including suggestions and improvements)
« Reply #1268 on: 05/24/2012 07:29 PM »
I doubt that it will ever happen but I was wondering how realistic would Dream Chaser on an Ariane 5 be?

P.S. Sirangelo said in a January 2011 BBC blog/article that it would be possible:
Quote
Looking at the artist's impression of the Dream Chaser atop the Atlas, it reminds me of the European Hermes shuttle and the way it would have been launched on the Ariane 5 if Esa member states hadn't killed it off. Mark Sirangelo says Dream Chaser would work very nicely off the top of an Ariane. Are you interested Europe?

http://www.bbc.co.uk/blogs/thereporters/jonathanamos/2011/01/chasing-the-dream-of-human-spa.shtml
Now that would look sweet... ;)
"The laws of physics are unforgiving"
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Offline Rocket Science

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Re: Dream Chaser Q&A (including suggestions and improvements)
« Reply #1269 on: 06/10/2012 12:28 AM »
Lifting Body Air and Spacecraft Q & A

With all the interest generated by Dream Chaser and its direct ancestor the HL-20 and all the other lifting body vehicles, the thread linked below is to discuss, inform and exchange general questions, ideas and answers as to what exactly a Lifting Body is. This is to keep the Dream Chaser threads clean and without clutter and OT topics as things get busier now. :)

http://forum.nasaspaceflight.com/index.php?topic=29126.msg914401;topicseen#new
« Last Edit: 06/10/2012 01:00 AM by Rocket Science »
"The laws of physics are unforgiving"
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