[ExI] Skylon as first stage.
brentn at freeshell.org
Sun Apr 17 21:32:51 UTC 2011
On 16 Apr, 2011, at 1:59, Keith Henson wrote:
> Skylon can boost a 30 ton payload to 157 km and 6966 m/s. see page 10 of
> PS. If there is anyone besides Spike who can grok physics and spread
> sheets, be happy to send you a copy.
Keith, I'd like to see the spreadsheets, if you don't mind.
Brent Neal, Ph.D.
<brentn at freeshell.org>
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