[sci.space.shuttle] Shuttle Status for 12/04/90

yee@trident.arc.nasa.gov (Peter E. Yee) (12/05/90)

            KSC SHUTTLE STATUS REPORT - Tuesday, Dec. 4, 1990  9:30 a.m.


                             STS-35 - COLUMBIA (OV 102)

               The solid rocket booster retrieval ships arrived at   Hangar
          AF  on the Cape Canaveral Air Force Station at about noon yester-
          day.  The right booster parachute failed  to  separate  from  the
          booster  at  water  impact.  Officials  are  looking into why the
          pyrotechnic parachute separation devices failed.    The  boosters
          will  be  disassembled at Hangar AF in preparation for refurbish-
          ment.


                       STS-39 - DISCOVERY (OV 103) - OPF BAY 1

               Freon servicing is planned this week.  Operations  scheduled
          this week include tests of the Ku-band antenna,  servicing of the
          water spray boilers,  and a functional test of the waste contain-
          ment system.

               Tests  of  the right orbital maneuvering system (OMS) pod to
          verify the internal screens in the  propellant  tanks  have  been
          successful  at  the Hypergolic Maintenance Facility (HMF).  Tests
          will continue this week with the pod in a horizontal position.


                       STS-37 - ATLANTIS (OV 104) - OPF BAY 2

               Residual oxidizer and fuel propellants were drained from the
          orbital maneuvering system crossfeed lines and manifold  and  the
          bay was reopened for normal work early this morning.

               Tests  of  the  radar  altimeter  and landing gear hydraulic
          struts are scheduled this  week.  Preparations  are  underway  to
          remove the left OMS pod. Pod removal is scheduled Saturday, to be
          followed  by transfer to the HMF for post-flight operations.  The
          number 3 auxiliary power unit was disconnected in preparation for
          removal.

                         STS-39 SOLID ROCKET BOOSTERS - VAB

               Stacking operations are continuing in the VAB. The right aft
          center segment was mated shortly after midnight.  The right  for-
          ward  center segment was transferred from the Rotation Processing
          and Surge Facility to the VAB and stacking  of  that  segment  is
          scheduled to begin today.

gs26@prism.gatech.EDU (Glenn R. Stone) (12/06/90)

In the referenced article yee@trident.arc.nasa.gov (Peter E. Yee) writes:


>          ....  The right booster parachute failed  to  separate  from  the
>          booster  at  water  impact.  Officials  are  looking into why the
>          pyrotechnic parachute separation devices failed.

Silly question: why separate the 'chutes from the boosters?  I would think
you would want the 'chutes back as well as the boosters, to either re-use
or dispose of properly....  just leaving the 'chutes out there is a potential
environmental impact, no?  Anyone have a clue into the matter?

Curiously,
Glenn R. Stone (gs26@prism.gatech.edu) 

bro@eunomia.rice.edu (Douglas Monk) (12/06/90)

In article <18158@hydra.gatech.EDU> gs26@prism.gatech.EDU (Glenn R. Stone) writes:
#Silly question: why separate the 'chutes from the boosters?  I would think
#you would want the 'chutes back as well as the boosters, to either re-use
#or dispose of properly....  just leaving the 'chutes out there is a potential
#environmental impact, no?  Anyone have a clue into the matter?

I think they *do* recover the 'chutes. I recall seeing support vessels 
recovering the jettisoned 'chutes at the same time the boosters are being
recovered. (Though this could have been only during some non-routine or
testing period in which they were particularly interested in recovering
the 'chutes for some reason.)

As to why they are jettisoned: the boosters stick up out of the water
vertically. If the 'chutes were still attached, they could possibly
drag the boosters or perhaps overturn it (at which point I believe they
would sink). Some booster(s) has(have) been lost due to sinking, I think.

Doug Monk (bro@rice.edu)

Disclaimer: These views are mine, not necessarily my organization's.

petej@phred.UUCP (Pete Jarvis) (12/10/90)

In article <18158@hydra.gatech.EDU> gs26@prism.gatech.EDU (Glenn R. Stone) writes:
>
>Silly question: why separate the 'chutes from the boosters?  I would think
>you would want the 'chutes back as well as the boosters, to either re-use
>or dispose of properly....  just leaving the 'chutes out there is a potential
>environmental impact, no?  Anyone have a clue into the matter?
>

They don't leave the chutes out there. They are recovered.

Peter Jarvis........

nick@pro-canaveral.cts.com (Nick Thomas) (12/11/90)

In-Reply-To: message from bro@eunomia.rice.edu

        The parachutes from the SRB's are indeed recovered and refurbished at
the Parachute Refurbishment Facility, located in the KSC industrial area to
the south of the O&C building.
        One set of boosters were lost on the STS-4 mission
(Mattingly/Hartsfield). A dual parachute malfunction (probably occurred during
packing) caused the SRB's to hit the water at too high a velocity and they
both sank.
Nick Thomas.

Nick Thomas

ProLine:  nick@pro-canaveral
Internet: nick@pro-canaveral.cts.com
UUCP:     crash!pro-canaveral!nick
ARPA:     crash!pro-canaveral!nick@nosc.mil