Re: Griffin Calls STS, ISS "Mistakes"

Hi!

Jim Davis <jimdavis2@xxxxxxxxxxxxx> writes:
> Arianespace was under the impression that designing the Ariane
> launchers to be expendable would mean that the engineering margins
> for thermal protection, engine performance, weight etc would be
> less demanding.
>
> Were they mistaken?

You are mistaken. I was comparing the current shuttle with a two stage
fully reusable shuttle. Designing two reusable stages gives a larger
ammount of engineering work but you do not have to use lesser margins,
you can probably have better margins. But this do of course require
that you correctly size your launcher for the payload, something the
designers of the current shuttle failed to do.

Best regards,
--
Magnus Redin, Klockaregården 6, 586 44 LINKöPING, SWEDEN
Phone: Sweden (0)13 34 00 676 or (0)705 16 00 46
.

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