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- Newsgroups: sci.space
- Path: sparky!uunet!usc!cs.utexas.edu!sun-barr!ames!news.dfrf.nasa.gov!shafer
- From: shafer@rigel.dfrf.nasa.gov (Mary Shafer)
- Subject: Re: aerospikes
- In-Reply-To: henry@zoo.toronto.edu's message of Sat, 19 Dec 1992 01:41:19 GMT
- Message-ID: <SHAFER.92Dec18201055@ra.dfrf.nasa.gov>
- Sender: news@news.dfrf.nasa.gov (Usenet news)
- Organization: NASA Dryden, Edwards, Cal.
- References: <BzFK5F.Dwn.1@cs.cmu.edu> <BzHGox.9Lx@zoo.toronto.edu>
- Date: Sat, 19 Dec 1992 04:11:00 GMT
- Lines: 26
-
- On Sat, 19 Dec 1992 01:41:19 GMT, henry@zoo.toronto.edu (Henry Spencer) said:
-
- HS> In article <BzFK5F.Dwn.1@cs.cmu.edu> MUNIZB%RWTMS2.decnet@consrt.rockwell.com ("RWTMS2::MUNIZB") writes:
- >If lack of *flight-test* data is seen as the long pole in the tent
- >(holding things up), why isn't it being flown on the admittedly
- >experimental DC-X (and DC-Y)?
-
- HS> Because DC-X and DC-Y are *not* experimental in that sense. They are
- HS> proof-of-concept vehicles for single-stage-to-orbit launchers. They're
- HS> trying very hard *not* to be an experiment in any other way; in particular,
- HS> they are *not* in the business of advancing engine technology if they can
- HS> avoid it.
-
- The DC-X is going to have a data collection system. As I recall,
- they're going to collect what I'd call a standard barebones set of
- measurements--angles, rates, accelerations of the airframe, control
- deflections, and other vehicle states, which probably include a
- variety of engine parameters.
-
- Flight data is always of great value for validating ground predictions
- (e.g. CFD, wind tunnel, etc.) so the DC-X data will probably be of
- greater value than one might originally think.
- --
- Mary Shafer DoD #0362 KotFR NASA Dryden Flight Research Facility, Edwards, CA
- shafer@rigel.dfrf.nasa.gov Of course I don't speak for NASA
- "A MiG at your six is better than no MiG at all." Unknown US fighter pilot
-