[ExI] fun memories of rocket stuff from a long time ago

[spike at rainier66.com]

From: extropy-chat <extropy-chat-bounces at lists.extropy.org> On Behalf Of Adrian Tymes via extropy-chat
Sent: Sunday, 28 September, 2025 6:48 PM
To: ExI chat list <extropy-chat at lists.extropy.org>
Cc: Adrian Tymes <atymes at gmail.com>
Subject: Re: [ExI] fun memories of rocket stuff from a long time ago

 

On Sun, Sep 28, 2025 at 8:35 PM spike jones via extropy-chat <extropy-chat at lists.extropy.org <mailto:extropy-chat at lists.extropy.org> > wrote:

After calculating it a hundred different ways, my conclusion is that single stage to orbit can be done.  You just can’t carry enough actual payload to make it worth doing.

 

>…Not without something with much better specific impulse than chemical rockets, anyway…

 

 

 

That spreadsheet works for nuclear rockets too.  If you have any motor data, I will see if I can find an old copy of that spreadsheet, or failing that I can put together a new one (I still remember how) or failing that we can use one of the many commercial products that do rocket calculations.

 

spike

 

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