Re: Griffin Calls STS, ISS "Mistakes"

On 29 Sep 2005 00:25:11 +0200, Magnus Redin <redin@xxxxxxxxxxxxxx>
wrote:

>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.

Not the designers' fault, though, as I understand it -- they upped the
payload and went to the big delta wing to meet DOD requirements.

--
Josh

"This is a devastating storm. This is a storm that's
going to require immediate action now." -George W. Bush,
four days after Hurricane Katrina
.

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