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- Newsgroups: sci.space
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!menudo.uh.edu!lobster!nuchat!rkolker
- From: rkolker@nuchat.sccsi.com (Rich Kolker)
- Subject: Re: Making Orbit 93 - The Delta Clipper Program
- Message-ID: <1993Jan25.165334.20872@nuchat.sccsi.com>
- Organization: South Coast Computing Services, Inc.
- References: <20004@mindlink.bc.ca>
- Date: Mon, 25 Jan 1993 16:53:34 GMT
- Lines: 44
-
- In article <20004@mindlink.bc.ca> Bruce_Dunn@mindlink.bc.ca (Bruce Dunn) writes:
- >Regarding my posting in which I related the Delta Clipper landing sequence
- >as:
- >1) start engines
- >2) flip to base-first attitude
- >
- >
- >> Larry Wall writes:
- >> How do they guarantee they don't get upside-down-spraycan syndrome?
- >
- >
- >
- >I checked my notes again, and the notes give the start engines, then flip
- >sequence. It is possible that I misheard the speaker (Gaubatz from McDonnell
- >Douglas). I expect the most likely explanation is that I have
- >mis-interpreted the sequence. An alternate possibility is that the "engines"
- >started are the RCS thrusters, which run on gaseous hydrogen and gaseous
- >oxygen.
- >--
- >Bruce Dunn Vancouver, Canada Bruce_Dunn@mindlink.bc.ca
-
- According to one of the pilots for Delta Clipper, there are four
- different methods they plan to test for the "flipover". I am no
- expert, so any questions on these have a fair chance of being answered,
- "I dunno.."
-
- 1. The "death swoop" - use the momentum and body flaps to do a
- zoom climb (think of the bottom half of an inside loop).
-
- 2. Use the engines to power the bird around.
-
- 3. There is a point on entry when the bottom-heavy clipper becomes
- unstable in a nose-down attitude. Let gravity do the work and when
- the bottom points down, catch it with the RCS.
-
- 4. Shove a pilot chute out the nose.
-
- DC-x is scheduled to try all of these as part of the flight test program
-
- ++rich
- -------------------------------------------------------------------
- rich kolker rkolker@nuchat.sccsi.com
- < Do Not Write In This Space>
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