<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Any archives for that (SSTO)? Thanks for elaborating on this.<br><br><div dir="ltr"><div style="line-height: normal;"><div style="line-height: normal;"><span style="line-height: 20px; background-color: rgba(255, 255, 255, 0);">Regards,</span></div><div style="line-height: normal;"><span style="line-height: 20px; background-color: rgba(255, 255, 255, 0);"><br></span></div><div><div style="line-height: normal;"><span style="line-height: 20px; background-color: rgba(255, 255, 255, 0);">Dan</span></div><div style="line-height: normal;"><span style="line-height: 20px; background-color: rgba(255, 255, 255, 0);"> Sample my Kindle books at:</span></div><div style="line-height: normal;"><p style="margin: 0px; font-stretch: normal; font-size: 12px; line-height: normal; font-family: Helvetica;"><span style="font-size: 12pt;">http://author.to/DanUst</span></p></div></div></div><div><div style="line-height: normal;"></div></div></div><div dir="ltr"><br><blockquote type="cite">On Mar 25, 2020, at 1:01 PM, spike jones via extropy-chat <extropy-chat@lists.extropy.org> wrote:<span style="font-family: Calibri, sans-serif; font-size: 11pt;"> </span></blockquote></div><blockquote type="cite"><div dir="ltr"><div class="WordSection1"><p class="MsoNormal"><o:p> </o:p></p><div><div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b>From:</b> extropy-chat <extropy-chat-<o:p></o:p></p></div></div><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><div><div><div><p class="MsoNormal" style="mso-margin-top-alt:auto;margin-right:.5in;mso-margin-bottom-alt:auto">I do miss the focused subgroups. Those things were so intense and worthwhile in their way. We had them on single-state-to-orbit, guns, openness vs privacy, lots of math ones including one that I think led to BlockChain and BitCoin.<o:p></o:p></p></div></div></div></blockquote><div><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><div><div><p class="MsoNormal" style="mso-margin-top-alt:auto;margin-right:.5in;mso-margin-bottom-alt:auto;margin-left:.5in">>spike<o:p></o:p></p></div></div></blockquote></div><p class="MsoNormal"><o:p> </o:p></p><div><p class="MsoNormal">>…Single stage?<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">Dan <o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">{8^D<o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">Ja, single STAGE to orbit, sheesh, my fat fingers.<o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">We had a good SSTO group going for a while back in the days when that was still a real possibility. I was in the school of thought which held (and still hold) that anything you can do with one stage can be done better with two.<o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">We were doing actual calculations in those days, lotta smart aerospace guys joining, some who weren’t ever part of ExI-chat, proposing designs and such. <o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">Fully-recoverable two-stage is a good solution to a very difficult problem. Keith might have other thoughts, as I vaguely recall he was in on the chatter back in those days. I was more active on that one than any of the others, and it was mostly before I did much of anything on ExI.<o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">In retrospect… I don’t even know if that group started out on ExI. It might have pre-dated this list and just had a lot of ExI guys on it. Eh, memories from over 25 yrs ago are not reliable.<o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">Keith do you remember an email group with about 30-40 guys kicking around SSTO ideas? Who were the others? It was in about early 90s, and I still have my handwritten notebooks from those days, somewhere. I don’t know where they are, but I know I didn’t throw them out.<o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">spike</p></div></div></div></blockquote><style><!--
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