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- Newsgroups: sci.space
- Path: sparky!uunet!mcsun!news.funet.fi!aton.abo.fi!usenet
- From: MLINDROOS@FINABO.ABO.FI (Marcus Lindroos INF)
- Subject: Re: 2001/2010 Rocket Engines - What are they?
- In-Reply-To: MLINDROOS@FINABO.ABO.FI's message of Thu, 21 Jan 1993 10:29:43 GMT
- Message-ID: <1993Jan21.120247.11867@abo.fi>
- Sender: usenet@abo.fi (Usenet NEWS)
- Organization: Abo Akademi University, Finland
- References: <1993Jan21.102943.5124@abo.fi>
- Date: Thu, 21 Jan 1993 12:02:47 GMT
- X-News-Reader: VMS NEWS 1.24
- Lines: 23
-
- Any idea what kind of engines the "Discovery" and "Alexei Leonov" of "2010 -
- Odyssey Two" were using? Obviously, they have to be pretty fuel-efficient [=an
- exhaust velocity of at least 25km/s] since neither craft seems to have much
- room for fuel aboard. Ion engines seem to be out of the question but what about
- a fusion-powered plasma motor? The visual appearance of the nozzles [=not
- bell-shaped like those of the Space Shuttle or a nuclear engine] plus the
- fact that both vessels have clusters of small engines rather than three or
- four big ones all suggest that the exhaust jets produced by the engines
- contain little mass, but are being ejected at high velocities.
- ---
- Does anyone know what the theoretical maximum exhaust velocity for an
- "economical" fusion/plasma engine is, using standard propellants like methane,
- water or hydrogen?
- >
- > MARCU$
- >
- > --------------------------------------------------------------------------
- > . . . Fififinlandssvensk
- >
- > Marcus Lindroos Internet: mlindroos@abo.fi
- > Computer Science
- > Abo Akademi University
- > Finland
-