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Article #133Re: Query Re: pluto direct/ o
From: Ian Taylor
Date: Fri, 30 Oct 1992 16:33
Date: Fri, 30 Oct 1992 16:33
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In article <719132495.F00003@blkcat.UUCP> Tomas.Svitek@f118.n109.z1.fidonet.org (Tomas Svitek) writes:
>HS>>Aerobrake?
>
>HS>In what? :-) Pluto does have an atmosphere of sorts at the moment, but
>HS>I'd guess it's too thin to do much aerobraking in, even if we knew its
>HS>properties well enough to plan an aerobraking mission, which we don't.
>HS>And we'd have to kill a lot of velocity; Pluto is roughly 150 km/s-years
>HS>away (how's that for strange units? :-)), so for a reasonable trip time
>HS>we're talking about killing maybe 20 km/s, which is high.
>
>Actually, there is a fairly serious proposal (albeit very tentative)
>from GE Reentry Systems regarding aerobraking at Pluto.
How about aerobraking at Neptune first?
While I'm here, anyone know if a gravity assist trajectory can be used to
*reduce* speed?
+-- I -------- fax +43 1 391452 --------------------- voice +43 1 391621 169 --+
| T a y l o r Alcatel-ELIN Research, 1-7 Ruthnergasse, Vienna A-1210 Austria |
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...but officer, I was only doing 20km a second...
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Newsgroups: sci.space Path: arc1-ca.pugleaf.net!sparky!uunet!news.univie.ac.at!hp4at!rcvie!se_taylo From: se_taylo@rcvie.co.at (Ian Taylor) Subject: Re: Query Re: pluto direct/ o Message-ID: <1992Oct30.163302.15547@rcvie.co.at> Organization: Alcatel Austria - Elin Research Center, Vienna References: <719132495.F00003@blkcat.UUCP> Date: Fri, 30 Oct 1992 16:33:02 GMT Lines: 24