A Space & astronomy forum. SpaceBanter.com

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » SpaceBanter.com forum » Space Science » Space Station
Site Map Home Authors List Search Today's Posts Mark Forums Read Web Partners

Pirs docking compartment lifetime



 
 
Thread Tools Display Modes
  #1  
Old September 21st 06, 02:01 AM posted to sci.space.station
Glen Overby
external usenet poster
 
Posts: 1
Default Pirs docking compartment lifetime

I was looking for the ISS future assembly sequence, and got off track looking
at past missions. The Pirs assembly page at:
http://www.nasa.gov/mission_pages/st...ents/pirs.html

states:

The docking compartment's lifetime as part of the Station is five
years.

Since Pirs was docked to the space station on September 16, 2001 it would
appear that this lifetime has already expired.

I wonder why a module was designed with such a short lifetime? I've seen
nothing about it's life being extended, or it's disposal. So what do the ISS
experts on this group have to say about that?

Glen Overby
Twin Cities, MN
Ads
  #2  
Old September 21st 06, 10:38 PM posted to sci.space.station
[email protected]
external usenet poster
 
Posts: 10
Default Pirs docking compartment lifetime

I am no expert, but I do recall that the original plan was to discard
Pirs within 5 years, to be replaced by Docking Compartment 2.




Glen Overby wrote:
I was looking for the ISS future assembly sequence, and got off track looking
at past missions. The Pirs assembly page at:
http://www.nasa.gov/mission_pages/st...ents/pirs.html

states:

The docking compartment's lifetime as part of the Station is five
years.

Since Pirs was docked to the space station on September 16, 2001 it would
appear that this lifetime has already expired.

I wonder why a module was designed with such a short lifetime? I've seen
nothing about it's life being extended, or it's disposal. So what do the ISS
experts on this group have to say about that?

Glen Overby
Twin Cities, MN


  #3  
Old September 22nd 06, 12:49 AM posted to sci.space.station
Jorge R. Frank
external usenet poster
 
Posts: 2,089
Default Pirs docking compartment lifetime

wrote in
oups.com:

Glen Overby wrote:
I was looking for the ISS future assembly sequence, and got off track
looking at past missions. The Pirs assembly page at:
http://www.nasa.gov/mission_pages/st...ements/pirs.ht
ml

states:

The docking compartment's lifetime as part of the Station is
five years.

Since Pirs was docked to the space station on September 16, 2001 it
would appear that this lifetime has already expired.

I wonder why a module was designed with such a short lifetime? I've
seen nothing about it's life being extended, or it's disposal. So
what do the ISS experts on this group have to say about that?


I am no expert, but I do recall that the original plan was to discard
Pirs within 5 years, to be replaced by Docking Compartment 2.


That's right. Pirs docked to the Zvezda nadir docking port as an interim
airlock/docking module until the Universal Docking Module would have been
launched. Then Docking Compartment 2 would have docked to the UDM.

In the current assembly sequence, the Russians plan to relocate Pirs to
Zvezda zenith to serve as the base for a truncated Science Power Platform.
The UDM has been replaced with FGB-2.

--
JRF

Reply-to address spam-proofed - to reply by E-mail,
check "Organization" (I am not assimilated) and
think one step ahead of IBM.
  #4  
Old September 22nd 06, 04:09 PM posted to sci.space.station
[email protected]
external usenet poster
 
Posts: 10
Default Pirs docking compartment lifetime

Of course, FGB-2 will first dock with FGB Nadir, via probe and cone,
and then magically transfer over to Service Module nadir's hybrid port.


Jorge R. Frank wrote:
wrote in
oups.com:

Glen Overby wrote:
I was looking for the ISS future assembly sequence, and got off track
looking at past missions. The Pirs assembly page at:
http://www.nasa.gov/mission_pages/st...ements/pirs.ht
ml

states:

The docking compartment's lifetime as part of the Station is
five years.

Since Pirs was docked to the space station on September 16, 2001 it
would appear that this lifetime has already expired.

I wonder why a module was designed with such a short lifetime? I've
seen nothing about it's life being extended, or it's disposal. So
what do the ISS experts on this group have to say about that?


I am no expert, but I do recall that the original plan was to discard
Pirs within 5 years, to be replaced by Docking Compartment 2.


That's right. Pirs docked to the Zvezda nadir docking port as an interim
airlock/docking module until the Universal Docking Module would have been
launched. Then Docking Compartment 2 would have docked to the UDM.

In the current assembly sequence, the Russians plan to relocate Pirs to
Zvezda zenith to serve as the base for a truncated Science Power Platform.
The UDM has been replaced with FGB-2.

--
JRF

Reply-to address spam-proofed - to reply by E-mail,
check "Organization" (I am not assimilated) and
think one step ahead of IBM.


  #6  
Old September 23rd 06, 05:56 PM posted to sci.space.station
[email protected]
external usenet poster
 
Posts: 10
Default Pirs docking compartment lifetime

Huh?

You mean that the FGB-2 probe male docking adapter would be replaced
prior to launch with a hybrid male adapter? In that event, how would
FGB-2 dock with FGB-1? Remember that there is a firm requirement to
have a module docked at FGB nadir prior to the arrival of Node 3.



Jorge R. Frank wrote:
wrote in
oups.com:

Of course, FGB-2 will first dock with FGB Nadir, via probe and cone,
and then magically transfer over to Service Module nadir's hybrid
port.


Or the Russians will replace FGB-2's probe and cone with a hybrid mechanism
before launch, just like FGB-1 had. No magic required.

--
JRF

Reply-to address spam-proofed - to reply by E-mail,
check "Organization" (I am not assimilated) and
think one step ahead of IBM.


 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Progress M-55 docking to the International Space Station Jacques van Oene Space Station 0 December 31st 05 11:00 AM
OFFICIAL PRESS RELEASE about the docking of Progress M1-11 Jacques van Oene Space Station 0 February 2nd 04 04:25 PM
Docking of the Soyuz TMA-3 transport spacecraft with the International Space Station Jacques van Oene Space Station 0 October 21st 03 09:41 AM
Docking of Progress M-48 to the International Space Station Jacques van Oene Space Station 0 September 2nd 03 03:11 PM
Origin of Orbiter Docking System Jorge R. Frank Space Shuttle 2 August 28th 03 06:40 PM


All times are GMT +1. The time now is 02:17 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Copyright 2004-2019 SpaceBanter.com.
The comments are property of their posters.