At 02:41 AM 6/22/2002 +0100, Ian Woollard wrote:
>Yes, I love that piece.
>
>Another more wider ranging article on cost lines is:
>
>"Why are launch costs so high"?
>
>http://www.ghg.net/redflame/launch.htm
>
>It's got some very interesting bits, particularly when he talks about the
>safety of LOX...
>not sure I agree with his conclusions overall. I would be interested on
>this groups opinion on how
>the behaviour of LOX compares with HTP though.
I think he got it right on when he said 'There are no nice
oxidizers'. I'd think his comments about SSTOs would be even more
controversial here. I think he's probably right for low flight rates
(<1/day or so), but as your flight rate climbs, recovery and re-integration
is likely to eat an increasingly large segment of of your budget, and
development & manufacturing a decreasing amount. His comments on the
vibration problems are well taken -- the vibration environment in a rocket
is hell compared to even the roughest airplane.
-p
Mars or Bust!
www.marssociety.com
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