Newsgroups: sci.space.shuttle
Path: utzoo!henry
From: henry@zoo.toronto.edu (Henry Spencer)
Subject: Re: Re : Re: Re : SSME Vs. F-1
Message-ID: <1990Dec15.235958.10187@zoo.toronto.edu>
Organization: U of Toronto Zoology
References: <6303@crash.cts.com>
Date: Sat, 15 Dec 90 23:59:58 GMT

In article <6303@crash.cts.com> gandalf@pro-canaveral.cts.com (Ken Hollis) writes:
>... I cannot speak up for the design of the F-1  
>(as to its life expectancy) but if it came from the same set of numbers that
>were computed for the SSME's......

The SSME is infamous for short life expectancy and poor reliability.  The F-1
was not.  Remember that although the engines only *flew* once, they were
generally ground-tested many times (which is why the engine for an expendable
stage was specified for 50 firings).
-- 
"The average pointer, statistically,    |Henry Spencer at U of Toronto Zoology
points somewhere in X." -Hugh Redelmeier| henry@zoo.toronto.edu   utzoo!henry