Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!dg!dg-rtp.dg.com!ahughes From: ahughes@dg-rtp.dg.com (Arch Hughes) Newsgroups: sci.space.shuttle Subject: Re: launch rates Message-ID: <1002@dg.dg.com> Date: 26 Sep 90 16:08:53 GMT References: <10195.26fde341@pbs.org> <1990Sep25.033816.16652@zoo.toronto.edu> <10209.26ff5e6c@pbs.org> Sender: root@dg.dg.com Reply-To: ahughes@dg-rtp.dg.com (Arch Hughes) Organization: Data General Corporation, Research Triangle Park, NC Lines: 35 In article <10209.26ff5e6c@pbs.org>, pstinson@pbs.org writes: |> In article <1990Sep25.033816.16652@zoo.toronto.edu>, henry@zoo.toronto.edu (Henry Spencer) writes: |> |> > -- Apollo 9, in early 1969, was the first Saturn V launch that was |> > considered a "production" launch, not encumbered by major debugging work |> > on KSC facilities and equipment -- and post-1969 launches were slowed down |> > by the Apollo 13 accident (which is why there was only one in 1970) |> And STS-5 was the first comparable launch in the Shuttle proram. STS-1 through |> STS-4 were billed as test flights and were encumbered by revamping of KSC |> facilities. Shuttle launches had to recover from Challenger (which is why |> there weren't any launches in 1987.) Shuttle went through the same stuff Saturn |> V did. You can not argue away the Shuttle's better performance as compared to |> Saturn V by claiming extenuating circumstances. I made no allowances when I |> compiled the Shuttle launch figures and I see no reason why I should have with |> the Saturn V data. I treated them both the same. It also appears that you counted the last Challenger launch in '86 in the statistics. Perhaps once it clears the tower and is handed off to Houston it counts as a launch, regardless of flight duration? Another interesting calculation might be total weight (of cargo) put into orbit versus the number (or cost) of the launches.