[sci.space.shuttle] Role of Shuttle during Launch

Thorsten Nedderhut <TNEDDERH@ESOC.BITNET> (05/14/91)

Hi there,

when I watched the Shuttle launches from KSC at TV, I often recognized this
role motion during the first 20 seconds. I do not remember if this occurs
always. Has it something to do with ?yaw-wheel-steering-mode?, is it just
a function test of the bird or is it used to adjust the plane?
BTW, since my work is related to the STS, is anybody able to post a list
of Shuttle contingency cases during launch and orbit stay time?

Thanx in advance
                   -Thorsten-

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Thorsten Nedderhut
mbp Software & Systems GmbH                    ESA/ESOC/ECD/OAD/STB
Dortmund, Germany                              Darmstadt, Germany

jfw@ksr.com (John F. Woods) (05/15/91)

TNEDDERH@ESOC.BITNET (Thorsten Nedderhut) writes:
>Hi there,
>when I watched the Shuttle launches from KSC at TV, I often recognized this
>role motion during the first 20 seconds. I do not remember if this occurs
>always. Has it something to do with ?yaw-wheel-steering-mode?, is it just
>a function test of the bird or is it used to adjust the plane?

It always occurs, it is to adjust the plane.  The amount of roll varies
according to what orbit the Shuttle is headed for.

TNEDDERH@ESOC.BITNET (Thorsten Nedderhut) (05/16/91)

I want to thank all of you who sent me an answer to my above mentioned
question. BTW, shortly after posting it I recognized the misspelling of
the word 'roll'.
Regards
                -Thorsten-
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Thorsten Nedderhut                             tnedderh@esoc
mbp Software & Systems GmbH                    ESA/ESOC/ECD/OAD/STB
Dortmund, Germany                              Darmstadt, Germany