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- From: roberts@cmr.ncsl.nist.gov (John Roberts)
- Subject: Re: new Shuttle toilet
- Message-ID: <C0Lny2.ox.1@cs.cmu.edu>
- X-Added: Forwarded by Space Digest
- Sender: news+@cs.cmu.edu
- Organization: National Institute of Standards and Technology formerly National Bureau of Standards
- Original-Sender: isu@VACATION.VENARI.CS.CMU.EDU
- Distribution: sci
- Date: Sat, 9 Jan 1993 18:41:18 GMT
- Approved: bboard-news_gateway
- Lines: 51
-
-
- -From: mike@starburst.umd.edu (Michael F. Santangelo)
- -Subject: DC-1 and the $23M NASA Toilet
- -Date: 7 Jan 93 05:11:01 GMT
- -Organization: University of Maryland, Chesapeake Biological Laboratory
-
- -Well, it occured to me after being subjected to a little CNN Headline News
- -peice this evening regarding the new $23 MILLION DOLLAR toilet that will
- -be flying aboard the shuttle Endeavour (GAO is somewhat concerned about
- -this btw) that no mention has been made regarding this sort of thing
- -with respect to the proposed manned, operational Delta Clipper program.
- -Since DC-1(,2,3...) will have the ability to stay in LEO for at least
- -some days with astronauts aboard, one wonders what kind of accomodations
- -they will have while not engaged in flight activities (i.e. sleeping, eating,
- -and what comes as a result of eating). A great deal of time, effort, and money
- -has been spent on STS to accomodate humans living in space during
- -week long missions in this regard.
-
- That *does* sound pretty expensive, doesn't it? I understand that this price
- includes the development and verification of the design as well as construction
- of the first model. Additional copies should be "cheaper" (if you can call it
- that).
-
- A few mitigating factors that might be considered:
- * I understand the pre-Shuttle toilet facilities took around an hour
- to use (for solid waste). Depending on how you do the accounting,
- we pay something like half a million dollars per astronaut-hour
- in orbit. (This would be particularly applicable on a Spacelab mission,
- for example, where human activity is the main point of the mission.)
- An hour or more per astronaut per day using a more primitive system
- represents considerable waste of an expensive resource.
- * The new Shuttle toilet is supposed to be considerably better than the
- earlier model, particularly for use on long-duration missions. It can
- be operated in several modes, and thus should be less likely to fail
- completely, making it less likely that the astronauts would have to
- resort to baggies. In addition, it doesn't have to be removed from the
- orbiter between missions, which could help with processing time and costs.
- * The same design is supposed to be usable on SSF, and I suppose could
- be adapted to DC-1. (There are no immediate plans to replace the toilets
- on the other three orbiters.)
- * The baggy system is not as sanitary as the toilet, and the health of
- the astronauts is a valid concern. A sick astronaut can't do as much
- work as a healthy one, and it would be a shame to have to cut short
- a long-duration mission due to health problems.
-
- I watched part of the NASA Select press conference, and taped the rest.
- I'll try to find the time to watch the entire press conference.
-
- John Roberts
- roberts@cmr.ncsl.nist.gov
-
-