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From: chiaravi@silver.bacs.indiana.edu (Lucius Chiaraviglio)
Newsgroups: sci.space.shuttle
Subject: Re: QUESTION: Shuttle round trips to the moon?
Summary: something is wrong here
Keywords: shuttle moon
Message-ID: <2967@silver.bacs.indiana.edu>
Date: 13 Jan 89 00:49:04 GMT
References: <14549@oberon.USC.EDU> <1064@ns.UUCP> <5108@hplabsb.HP.COM>
Reply-To: chiaravi@silver.UUCP (Lucius Chiaraviglio)
Organization: Department of Molecular, Cellular, and Developmental Biology at Indiana University, Bloomington
Lines: 21

In article <5108@hplabsb.HP.COM> dsmith@hplabsb.UUCP (David Smith) writes:
|In article <1064@ns.UUCP> logajan@ns.UUCP (John Logajan x3118) writes:
|>> Can the shuttle fly to the moon?
|>No. Consider that the ultimate result of burning all that fuel (both liquid
|>and
|>solid) is the final speed -- orbital speed of approximately 17000 mph, and
|>getting to the moon requires closer to 25000 mph.  Thus the shuttle would have
|>to carry at least 1/4 again as much fuel as it does.  Quite a significant
|>increase!
|
|It's worse than that.  To start with, the 1/4 figure is too low.
|(25000-17000)/17000 = 1.47 > 1.25.  [. . .]

	This can't be what you meant.  (25000 - 17000) / 17000 = 0.47.
Perhaps part of your formula is missing?

-- 
|  Lucius Chiaraviglio   |  ARPA:  chiaravi@silver.bacs.indiana.edu
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