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Who attaches the Orion Docking Adapter to the ISS?



 
 
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  #11  
Old April 17th 10, 06:10 AM posted to sci.space.station,sci.space.policy
John Doe
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Default Who attaches the Orion Docking Adapter to the ISS?

Jorge R. Frank wrote:

Someone eventually figured out it would be simpler just to make a LIDS
to CBM adapter and cut out the middleman, hence CDA. It replaces both
ATLAS and the PMAs.


Out of curiosity, what is wrong with APAS and in what way will CDA be
better ?
  #12  
Old April 17th 10, 07:21 AM posted to sci.space.station,sci.space.policy
Pat Flannery
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Default Who attaches the Orion Docking Adapter to the ISS?

On 4/16/2010 7:05 PM, Jorge R. Frank wrote:

ATLAS has been replaced by CDA. ATLAS stood for APAS To LIDS Adapter
System. The APAS was mounted on the PMAs, which themselves were really
just APAS to CBM adapters.


Am I the only person who thinks that in the future we will speak and
write entirly in acronyms? :-D

LMPO
Pat
  #13  
Old April 17th 10, 09:52 AM posted to sci.space.station,sci.space.policy
Pat Flannery
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Default Who attaches the Orion Docking Adapter to the ISS?

On 4/16/2010 9:10 PM, John Doe wrote:
Jorge R. Frank wrote:

Someone eventually figured out it would be simpler just to make a LIDS
to CBM adapter and cut out the middleman, hence CDA. It replaces both
ATLAS and the PMAs.


Out of curiosity, what is wrong with APAS and in what way will CDA be
better ?


See my last remark.
You know, I'm getting fairly good at the acronyms...but still, all I can
think of them is these lines out of Shakespeare's "Julius Caesar" every
time I run into them around two or three times in a single sentence:
"But those that understood him smiled at one another and
shook their heads; but, for mine own part, it was Greek to me." :-D

Pat
  #14  
Old April 17th 10, 02:56 PM posted to sci.space.station,sci.space.policy
David Spain
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Default Who attaches the Orion Docking Adapter to the ISS?

On 4/17/2010 2:21 AM, Pat Flannery wrote:
Am I the only person who thinks that in the future we will speak and
write entirly in acronyms? :-D

LMPO
Pat


IMHO & AFAICT, WATA.

Klatuu
  #15  
Old April 17th 10, 05:19 PM posted to sci.space.station,sci.space.policy
David Spain
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Default Who attaches the Orion Docking Adapter to the ISS?

"Jorge R. Frank" writes:
ATLAS has been replaced by CDA. ATLAS stood for APAS To LIDS Adapter
System. The APAS was mounted on the PMAs, which themselves were really just
APAS to CBM adapters.

Someone eventually figured out it would be simpler just to make a LIDS to CBM
adapter and cut out the middleman, hence CDA. It replaces both ATLAS and the
PMAs.

CDA is thin enough to fit in the unpressurized compartment of an HTV and will
be installed via the SSRMS on Node 2 forward and zenith. Two HTV flights will
deliver the two CDAs. The PMAs will be moved to unused CBMs for storage.


Pat Flannery writes:
Am I the only person who thinks that in the future we will speak and write
entirly in acronyms? :-D

LMPO
Pat


Pat Flannery writes:
You know, I'm getting fairly good at the acronyms...but still, all I can think
of them is these lines out of Shakespeare's "Julius Caesar" every time I run
into them around two or three times in a single sentence:
"But those that understood him smiled at one another and
shook their heads; but, for mine own part, it was Greek to me." :-D

Pat


I'll try to translate and hopefully Jorge will correct anything I get wrong.
;-)


LIDS == Low Impact Docking System (NASA/Lockheed?)
ATLAS == APAS to LIDS Adapter System (defunct)
APAS == Androgynous Peripheral Attach System (RSC Energia)
CDA == Common Docking Adapter (Boeing)
PMA == Pressurized Mating Adapter (Boeing)
CBM == Common Berthing Mechanism (Honeywell/Boeing)

http://en.wikipedia.org/wiki/Androgy..._Attach_System
http://en.wikipedia.org/wiki/Common_Berthing_Mechanism
http://spacecraft.ssl.umd.edu/design...35.ISS_CBM.pdf
http://en.wikipedia.org/wiki/Pressurized_Mating_Adapter

Dave

  #16  
Old April 19th 10, 07:20 PM posted to sci.space.station,sci.space.policy
Jeff Findley
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Posts: 5,012
Default Who attaches the Orion Docking Adapter to the ISS?


"David Spain" wrote in message
...
Pat Flannery writes:
Cygnus is supposed to be our Progress equivalent:
http://en.wikipedia.org/wiki/Cygnus_spacecraft
...or a unmanned variant of Dragon.


Thanks Pat. Once again my ignorance is on display.
I was aware of the Dragon automated cargo capacity,
sheesh some memory I have, but not Cygnus.


I've noted that many people here like to downplay Dragon, but very few
people even mention Cygnus. Considering Cygnus is based on a long existing
satellite bus, I've got high expectations for their first flight.

Jeff
--
"Take heart amid the deepening gloom
that your dog is finally getting enough cheese" - Deteriorata - National
Lampoon


  #17  
Old April 19th 10, 11:39 PM posted to sci.space.station,sci.space.policy
Pat Flannery
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Posts: 18,465
Default Who attaches the Orion Docking Adapter to the ISS?

On 4/19/2010 10:20 AM, Jeff Findley wrote:

I've noted that many people here like to downplay Dragon, but very few
people even mention Cygnus. Considering Cygnus is based on a long existing
satellite bus, I've got high expectations for their first flight.


Yeah, but they also have to get their Taurus II rocket to work, just
like SpaceX's Falcon 9.

Pat
  #18  
Old April 20th 10, 10:36 PM posted to sci.space.station,sci.space.policy
Jeff Findley
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Posts: 5,012
Default Who attaches the Orion Docking Adapter to the ISS?


"Pat Flannery" wrote in message
dakotatelephone...
On 4/19/2010 10:20 AM, Jeff Findley wrote:

I've noted that many people here like to downplay Dragon, but very few
people even mention Cygnus. Considering Cygnus is based on a long
existing
satellite bus, I've got high expectations for their first flight.


Yeah, but they also have to get their Taurus II rocket to work, just like
SpaceX's Falcon 9.


True, but they've got quite a bit of historical experience in this area,
where SpaceX is seen as a "start-up" with arguably less experience. This is
despite the fact that the only true experience you have is in people's
heads, and SpaceX no doubt has some seasoned engineers on staff. A
comparison of people to people between the two organizations would be
practically impossible.

Jeff
--
"Take heart amid the deepening gloom
that your dog is finally getting enough cheese" - Deteriorata - National
Lampoon


 




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