Soyuz in Shuttle?

The reason that the mission to service
Hubble has been cancelled is that they
can't guarantee the safety of the crew
for trips that are not close to the Space
Station (which can serve as a refuge).

However, why not carry a Soyuz capsule
in the Shuttle cargo bay? Then if there
is a problem with Shuttle reentry, the
Soyuz can be used as a lifeboat.

The shuttle crew size is typically five to seven people. The Soyuz seats
two or three. You do the math.




wrote in message
...
The reason that the mission to service
Hubble has been cancelled is that they
can't guarantee the safety of the crew
for trips that are not close to the Space
Station (which can serve as a refuge).

However, why not carry a Soyuz capsule
in the Shuttle cargo bay? Then if there
is a problem with Shuttle reentry, the
Soyuz can be used as a lifeboat.

Do you really need five to seven people on a Hubble service mission?

Someone in a position of power has got to sort this or a great investment
could be just left to fall out of the sky.

I imagine it might be reconsidered if the repair ideas pan out, but that
does not help the folk making the improved hardware, as they will probably
be stopped and redeployed now.

Brian

--
Brian Gaff....
graphics are great, but the blind can't hear them
Email:
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"Dosco Jones" wrote in message
link.net...
|
| The shuttle crew size is typically five to seven people. The Soyuz seats
| two or three. You do the math.
|
|
|
|
| wrote in message
| ...
| The reason that the mission to service
| Hubble has been cancelled is that they
| can't guarantee the safety of the crew
| for trips that are not close to the Space
| Station (which can serve as a refuge).
|
| However, why not carry a Soyuz capsule
| in the Shuttle cargo bay? Then if there
| is a problem with Shuttle reentry, the
| Soyuz can be used as a lifeboat.
|
|
|


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In article , Brian Gaff wrote:
Do you really need five to seven people on a Hubble service mission?

Quite probably.

STS-103 flew with seven; it made three two-man EVAs over three days.
STS-61 made five over five; ditto 109 and 82. (61 was planned for up to
seven...)

To do multiple EVAs, it's standard practice (AIUI, someone please
correct me) to have two pairs; group A does it one day, group B the
next, then A... remember, these are strenuous physical activities, in
some cases lasting over eight hours. Rotation is advisable.

So, you have four there. You then need people to do everything else - to
operate the Shuttle, the arm, whatever else they do (I never paid
greatly much attention g) - it's an intensive mission, they're not
just deadweight. You can make a case for that on some missions, but
historically manpower has been needed on things like HST servicing and
ISS assembly flights (witness that assembly flights occasionally get
announced as five, and then they look at th timeline and add two more).
For the ISS, it's doubly the case; you're adding a significant amount of
capacity just by having two more bodies to lug things.

I imagine it might be reconsidered if the repair ideas pan out, but that
does not help the folk making the improved hardware, as they will probably
be stopped and redeployed now.

I believe a significant amount of the hardware for Hubble is either
in the late stages of construction or, more commonly, sitting in a
cleanroom.

--
-Andrew Gray

Andrew Gray wrote in
:

In article , Brian Gaff
wrote:
Do you really need five to seven people on a Hubble service mission?

Quite probably.

STS-103 flew with seven; it made three two-man EVAs over three days.
STS-61 made five over five; ditto 109 and 82. (61 was planned for up
to seven...)

To do multiple EVAs, it's standard practice (AIUI, someone please
correct me) to have two pairs; group A does it one day, group B the
next, then A... remember, these are strenuous physical activities, in
some cases lasting over eight hours. Rotation is advisable.

A two-man team can do three EVAs, provided they get a day off in between
each one. Two pairs are standard for four or more EVAs.

So, you have four there. You then need people to do everything else -
to operate the Shuttle, the arm, whatever else they do (I never paid
greatly much attention g) - it's an intensive mission, they're not
just deadweight.

Right. The arm operator and the IVA crewmember need to be separate people,
because they have to pay attention to different things. So the minimum crew
size for a dual-pair EVA flight is six.


--
JRF

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"Dosco Jones" wrote in message
link.net...

The shuttle crew size is typically five to seven people. The Soyuz seats
two or three. You do the math.



Someone should suggest this idea -

Produce a modified version of the Soyuz without an Orbital Module and
possibly with a smaller Service Module. If two could be carried in the
payload bay, they only take up about half the space, you can now return a
crew of six.

Someone please tell me how the Shuttle crew would perform a transfer
into Soyuzes in the cargo bay that have had their orbital modules
removed.



"John Hearsey" wrote in message ...
"Dosco Jones" wrote in message
link.net...

The shuttle crew size is typically five to seven people. The Soyuz seats
two or three. You do the math.



Someone should suggest this idea -

Produce a modified version of the Soyuz without an Orbital Module and
possibly with a smaller Service Module. If two could be carried in the
payload bay, they only take up about half the space, you can now return a
crew of six.