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#100
by
HIPAR
on 19 Nov, 2010 15:36
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Undoubtedly, it's BIG. Is it the biggest?
--- CHAS
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#101
by
HIPAR
on 19 Nov, 2010 15:42
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what's cooler than a big launch vehicle?
Owning one and having it in your front yard!
Now that would present my neighborhood association 'enforcers' something real to ponder.
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#102
by
Ronsmytheiii
on 19 Nov, 2010 15:47
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#103
by
gospacex
on 19 Nov, 2010 15:48
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Undoubtedly, it's BIG. Is it the biggest?
IIUC currently it's the biggest ELV in active service in terms of payload.
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#104
by
Robotbeat
on 19 Nov, 2010 16:37
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High inclination "Heavy" payloads have flow from the cape in the past. Lacrosse comes to mind.
The highest inclination orbit the Lacrosse flew out of the Cape was 57 degrees. Not even that different from ISS, at 51.6. Nothing close to polar orbit.
What's the inclination of this launch? (it's GSO, so never mind)
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#105
by
pippin
on 19 Nov, 2010 16:38
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Depends on the orbit.
Ariane 5 is bigger WRT payload to GTO.
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#106
by
Ronsmytheiii
on 19 Nov, 2010 16:44
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High inclination "Heavy" payloads have flow from the cape in the past. Lacrosse comes to mind.
The highest inclination orbit the Lacrosse flew out of the Cape was 57 degrees. Not even that different from ISS, at 51.6. Nothing close to polar orbit. What's the inclination of this launch? (it's GSO, so never mind)
STS-36 flew at an inclination of 62 degrees
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#107
by
butters
on 19 Nov, 2010 16:57
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Depends on the orbit.
Ariane 5 is bigger WRT payload to GTO.
Is it? That's not what wikipedia says (FWIW), and BOTE reasoning suggests that since DIVH has slightly more performance to LEO and an upper stage with a higher specific impulse, it should have more performance to GTO.
But in any case, DIVH is by some margin the most voluminous ELV because it is all hydrolox (and no common bulkheads as well). It doesn't get much fluffier than this.
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#108
by
JosephB
on 19 Nov, 2010 17:10
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Depends on the orbit.
Ariane 5 is bigger WRT payload to GTO.
Is it? That's not what wikipedia says (FWIW), and BOTE reasoning suggests that since DIVH has slightly more performance to LEO and an upper stage with a higher specific impulse, it should have more performance to GTO.
But in any case, DIVH is by some margin the most voluminous ELV because it is all hydrolox (and no common bulkheads as well). It doesn't get much fluffier than this.
And is that without the RS-68A as well?
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#109
by
mmeijeri
on 19 Nov, 2010 17:20
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Is it? That's not what wikipedia says (FWIW), and BOTE reasoning suggests that since DIVH has slightly more performance to LEO and an upper stage with a higher specific impulse, it should have more performance to GTO.
I don't know which of the two has the greater payload, but bear in mind that Ariane launches from a nearly equatorial launch site.
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#110
by
pippin
on 19 Nov, 2010 17:20
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Volume - for sure.
I thought I read Ariane had a bigger GTO payload but this might also have to do with the different launch sites. LEO Payload is significantly bigger for DIV, afaik, but those are usually higher inclination orbits.
To have a higher payload it's not enough for the upper stage to have a higher specific impulse or even size. If the lower stage provides more delta-v.
I believe Ariane 5's LEO payload is structurally limited and measured with a different US. The ATV Arianes use a smaller upper stage and structural stiffening.
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#111
by
kevin-rf
on 19 Nov, 2010 17:23
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High inclination "Heavy" payloads have flow from the cape in the past. Lacrosse comes to mind.
The highest inclination orbit the Lacrosse flew out of the Cape was 57 degrees. Not even that different from ISS, at 51.6. Nothing close to polar orbit. What's the inclination of this launch? (it's GSO, so never mind)
Why don't we put it in perspective.
You're Quote
Seriously. For NRO payloads, Cape Canaveral is GSO and West Coast is polar orbit.
My point non GSO, heavy NRO payloads like Lacrosse do currently fly from the cape. Atlas IIIB, NROL-23 also comes to mind. I remember watching the fuel dump while walking the dog. 51.6 is not a low inclination.
Now, grab some popcorn and get ready to watch the light show.
Go Heavy!!!
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#112
by
Jim
on 19 Nov, 2010 17:28
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1. My point non GSO, heavy NRO payloads like Lacrosse do currently fly from the cape.
2.Atlas IIIB, NROL-23 also comes to mind. I remember watching the fuel dump while walking the dog. 51.6 is not a low inclination.
1. only one did
2. not a big payload
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#113
by
William Graham
on 19 Nov, 2010 17:45
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1. only one did
Two; the first and last. Both were originally supposed to fly from Vandenberg.
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#114
by
Chris Bergin
on 19 Nov, 2010 17:47
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Want to keep this on updates only from this point onwards.
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#115
by
Jim
on 19 Nov, 2010 17:51
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1. only one did
Two; the first and last. Both were originally supposed to fly from Vandenberg.
One Titan. All shuttle payloads were LEO payloads regardless of the final orbit.
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#116
by
Jester
on 19 Nov, 2010 18:00
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#117
by
Chris Bergin
on 19 Nov, 2010 18:12
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Problem being worked - detanking strap-on LOX, stop fill on fuel - source.
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#118
by
mtakala24
on 19 Nov, 2010 18:12
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Did I miss a link for a webcast... or will there be one?
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#119
by
Stephan
on 19 Nov, 2010 18:14
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