JF Mezei wrote on Wed, 3 Oct 2018
00:35:42 -0400:

On 2018-10-02 23:49, Fred J. McCall wrote:

Wrong. There is essentially no such thing as 'visiting crews' except
for the couple of tourists over the years.


Based on your logic, replacing the 1 US crewmembers on ISS would have a
Shuttle flight launch with the new crewmember and return with the old
cremember, which means both were fully qualified Shuttle pilots able to
magically operated the shuttle all by themselves.


Utter nonsense!


Shuttle typically carrier 5 to 7 crewmembers.


Yes, it did, and except for those riding up as long term ISS crew they
were SHUTTLE crew.


When doing a 1 person crew
roptation, all othesr would be visiting crewmembers on ISS and help
transfer cargo and do many opther tasks, and in some cases perform EVs
to help install whatever new component the Shuttle had brought along.


They were no more 'visiting crew' than you are visiting staff when you
go to WalMart.


The extra crews stayed for a few days, during which the ISS ECLSS system
was taxed and they would duct air from shuttle through PMA2 into Destiny.


You mean SHUTTLE stayed docked for a few days so they could transfer
cargo.


There were times where the Shuttle switched 2 crewmembers and times they
switched 1 depending on number of americans on board. (and I beleive a
couple of flights replaced all 3 which meant a Russian flew on shuttle).


I gave you a list. All those Shuttle flights for Crew 2-5 replaced
all three, with either one or two Russians per flight.


STS 102 for instance launched with "visiting" crew of
Wetherbee, Kelly, Thomas, Richards.


You mean SHUTTLE crew.


and new ISS crew of Usachev (RU) Viss and Helms
and returned with old ISS crew of Shepherd, Gidzenko and Krikalev.


Two Russians on Shuttle? IMPOSSIBLE. Masterful Mayfly tells me that
they flew Soyuz, not Shuttle.


When missions were shorter than 6 months, then 1 Soyuz could act as
escape pod for 2 missions with full crews exchanged by Shuttle.


Not if they have a 'staleness' date of six months. For what you claim
to work, you'd need two crew cycles that were less than three months
each, which simply never happened.


Then, when the US did crew rotations for americans, it meant that
replacing a soyuz would involve 2 new russian crewmemberts going up with
1 visiting russian who would stay for some time and go back down in the
old soyuz along with the 2 returning crewmembers.

And when there was only 1 russian crewmember rotating (when US had 2
crewmembers), the new Soyuz could launch with 2 visiting russians and
the 1 new crewmember and the old soyuz come back with the 2 visiting
crewmembers and the old ISS crewmember.


Except that doesn't work. Crews tended to alternate majority Russian
with majority American. So, for example, in the days of three person
crews if an oncoming crew had only one Russian (so they could have
your 'two visiting Russians'), the offgoing crew would have two
Russians, which means you would neat a four-seat Soyuz to do what you
claim was being done.



crews' numbered. Folks who rode Shuttle up and down on the same
Shuttle flight were SHUTTLE crews, not 'visiting ISS crew'.


Semantics,


Just like visiting WalMart people are not called 'visiting WalMart
associates' but rather 'customers'.


They were visiting crewmembers while docked to ISS. Had to
get ISS training before launch, and upon docking to ISS, first item was
getting safety briefing by the ISS commander because they were visiting
crewmembers during the Shuttle,s docked stay. Same when Soyuz docked
with some of its crews only staying for a few days and returning on the
old soyuz.


They didn't 'move' seat liners, as you've described. Crews almost
always went down in the same Soyuz they came up on, the crew and the
Soyuz both staying for roughly six months.


--
"Ignorance is preferable to error, and he is less remote from the
truth who believes nothing than he who believes what is wrong."
-- Thomas Jefferson