home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!gatech!gatech!kd4nc!ke4zv!gary
- From: gary@ke4zv.uucp (Gary Coffman)
- Newsgroups: sci.space
- Subject: Re: Why have both manned and auto capability on DC-[XY1] & Buran?
- Message-ID: <1992Dec20.193723.3296@ke4zv.uucp>
- Date: 20 Dec 92 19:37:23 GMT
- References: <1992Dec18.011309.12639@bby.com.au>
- Reply-To: gary@ke4zv.UUCP (Gary Coffman)
- Organization: Gannett Technologies Group
- Lines: 31
-
- In article <1992Dec18.011309.12639@bby.com.au> gnb@baby.bby.com.au (Gregory N. Bond) writes:
- >I understand the DC-X will, like the xUUSR Buran shuttle, have
- >capabilities for both unmanned automatic operation and piloted
- >operation. I suspect similar capability is expected for DC-Y and DC-1
- >should they be built.
- >
- >Given that the thing can fly automatically, why add pilots?
- >
- >I'm not sure what manned piloting means in this context, and what it
- >gains over auto operation; especially since providing space, controls,
- >seats, life support etc for the pilots is very expensive on the mass
- >budget.
- >
- >In what sense is the Shuttle piloted? What about Apollo?
- >
- >[I'm not talking here about the capacity to _carry_ people, and I
- >certainly don't want to start the manned-vs-unmanned flamewars again;
- >I'm strictly refering to the actual driving of the craft.]
-
- Theoretically, Shuttle has had autoland from the beginning, but it's
- never been used. Similarly, in space rendezvous and docking is handled
- manually. Normal ascent, descent, and station keeping are handled
- automatically. With Apollo, the state of the art in automatic flight
- controls of the time would have put Eagle in a boulder field rather than
- Tranquility base. The docking between the LEM and the command module was
- also a manual eyeball operation. Fully automatic operation for routine
- flights should be fairly easy today. Like with modern airliners, the pilot
- is just along as an exception handler. The ex-Soviets have been doing
- routine Progress flights for some time.
-
- Gary
-