XPost: rec.arts.sf.written, sci.space.policy, rec.arts.sf.movies
From: fjmccall@gmail.com
J. Clarke wrote on Mon, 28 May 2018
10:27:11 -0400:
>On Mon, 28 May 2018 07:19:51 -0400, "Robert Clark"
> wrote:
>
>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>"J. Clarke" wrote in message
>>news:77tbedpijk13td6a2ffoubeuhsshgr8l8s@4ax.com...
>>...
>>I keep seeing this in your sig. So on what occasion did a Titan II
>>first stage actually achieve orbit? If it didn't happen it wasn't
>>"shown to be possible" except in some theoretical sense. If you want
>>to claim that it was "shown to be possible" without a proof of
>>concept, one can equally argue that the disappearance of certain
>>manhole cover demonstrated this in a particular nuclear test.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>
>>Correct it was shown in a theoretical sense. But the example of the manhole
>>cover doesn't apply because that is nuclear propulsion where it is already
>>known that the exhaust velocity is enough for SSTO.
>
>If it didn't happen then it's not "shown".
>
>When a single stage actually achieves orbit get back to us.
>
I'm back.
>
>>Note that SpaceX has already acknowledged that the Falcon 9 first stage and
>>the BFR stages will have SSTO capability, but with small payload.
>
>Source? And I don't mean some throwaway comment or some blog post by
>somebody who doesn't work for SpaceX.
>
Well, he's not exactly an employee but Elon Musk has said that a
Falcon 9 Full Thrust first stage reaches (a very low) orbit on an
expendable launch and that they deliberately give it a little boost
back toward the ground so that it doesn't hang around up there for a
month or two.
--
"The reasonable man adapts himself to the world; the unreasonable
man persists in trying to adapt the world to himself. Therefore,
all progress depends on the unreasonable man."
--George Bernard Shaw
--- SoupGate-Win32 v1.05
* Origin: you cannot sedate... all the things you hate (1:229/2)
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