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Groups > rec.arts.sf.written > #493024

Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?)

From Thomas Koenig <tkoenig@netcologne.de>
Newsgroups rec.arts.sf.written, rec.arts.sf.science, sci.space.policy, sci.physics
Subject Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?)
Date 2018-06-06 06:21 +0000
Organization news.netcologne.de
Message-ID <pf7uhe$e5c$1@newsreader5.netcologne.de> (permalink)
References (9 earlier) <pf28ic$71o$1@dont-email.me> <55s9hd9hl133n69004c3bq99jlt08olhs5@4ax.com> <pf3ihd$r3l$1@dont-email.me> <k3jbhdtp7rr11ef00mfv6grnpjj29cjc9a@4ax.com> <MPG.35803d23c8d3eb97989ab5@news.eternal-september.org>

Cross-posted to 4 groups.

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Jeff Findley <jfindley@cinci.nospam.rr.com> schrieb:

> We've had this debate a long, long time ago in the sci.space newsgroups.  
> The fact is that there are many stages which are theoretically capable 
> of performing SSTO with minimal payload.  No one has ever done it 
> because the cost to get that payload into orbit is typically higher than 
> it would be if you just used a smaller TSTO (or higher number of 
> stages).  In other words, it just makes no sense to fly a disposable 
> SSTO.

There are also other considerations to take into account.

One of them is mechanical. A first stage flying with a much smaller
payload than the current second stage + actual payload would
have much lower mass towards the end of the burn, resulting in
higher acceleration and higher mechanical stress.  Buckling could
be something that needed to to be guarded against, as could be
outright failure due to compression stress.

Possible solutions if it turns out to be a problem:

Turn down the engine thrust (How far is that possible? Can the
engines even do that? What will it do to the specific impulse?)
or switch off individual engines (what happens if you swith off
one half a second later than the others?).

Strenghten the strucutre. This would add mass, and it would not
be the same first stage anymore.

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Thread

Life on Europa in scifi? "Robert Clark" <rgregoryclark@gmSPAMBLOCKail.com> - 2018-04-25 07:29 -0400
  Re: Life on Europa in scifi? djheydt@kithrup.com (Dorothy J Heydt) - 2018-04-25 13:44 +0000
  Re: Life on Europa in scifi? Lynn McGuire <lynnmcguire5@gmail.com> - 2018-04-25 14:34 -0500
    Re: Life on Europa in scifi? Ninapenda Jibini <taustinca@gmail.com> - 2018-04-26 01:03 +0000
    Re: Life on Europa in scifi? "Sea Wasp (Ryk E. Spoor)" <seawasp@sgeinc.invalid.com> - 2018-04-25 21:22 -0400
  Re: Life on Europa in scifi? Robert Carnegie <rja.carnegie@excite.com> - 2018-04-25 14:44 -0700
  Re: Life on Europa in scifi? Steve Dodds <sdodds@nova-optical.com> - 2018-04-25 16:04 -0600
  Re: Life on Europa in scifi? William Elliot <marsh@panix.com> - 2018-04-25 21:22 -0700
    Re: Life on Europa in scifi? Your Name <YourName@YourISP.com> - 2018-04-26 18:27 +1200
      Re: Life on Europa in scifi? David Johnston <davidjohnston29@yahoo.com> - 2018-04-26 08:56 -0600
      Re: Life on Europa in scifi? Thomas Koenig <tkoenig@netcologne.de> - 2018-04-27 05:32 +0000
        Re: Life on Europa in scifi? Your Name <YourName@YourISP.com> - 2018-04-27 18:40 +1200
          Re: Life on Europa in scifi? Jibini Kula Tumbili Kujisalimisha <taustinca@gmail.com> - 2018-04-27 08:04 -0700
            Re: Life on Europa in scifi? Robert Woodward <robertaw@drizzle.com> - 2018-04-27 09:48 -0700
              Re: Life on Europa in scifi? Lynn McGuire <lynnmcguire5@gmail.com> - 2018-04-27 12:52 -0500
                Re: Life on Europa in scifi? Jibini Kula Tumbili Kujisalimisha <taustinca@gmail.com> - 2018-04-27 11:02 -0700
                Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-04-27 22:11 -0400
                Re: Life on Europa in scifi? Jibini Kula Tumbili Kujisalimisha <taustinca@gmail.com> - 2018-04-30 09:22 -0700
              Re: Life on Europa in scifi? Jibini Kula Tumbili Kujisalimisha <taustinca@gmail.com> - 2018-04-27 11:01 -0700
                Re: Life on Europa in scifi? Dimensional Traveler <dtravel@sonic.net> - 2018-04-27 11:48 -0700
                Re: Life on Europa in scifi? Jibini Kula Tumbili Kujisalimisha <taustinca@gmail.com> - 2018-04-27 12:45 -0700
                Re: Life on Europa in scifi? Dimensional Traveler <dtravel@sonic.net> - 2018-04-27 13:06 -0700
              Re: Life on Europa in scifi? Your Name <YourName@YourISP.com> - 2018-04-28 09:37 +1200
                Re: Life on Europa in scifi? Jibini Kula Tumbili Kujisalimisha <taustinca@gmail.com> - 2018-04-27 15:17 -0700
                Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-04-27 22:12 -0400
                Re: Life on Europa in scifi? Ninapenda Jibini <taustinca@gmail.com> - 2018-04-28 05:47 +0000
                Re: Life on Europa in scifi? Kevrob <kevrob@my-deja.com> - 2018-04-28 07:47 -0700
                Re: Life on Europa in scifi? Ninapenda Jibini <taustinca@gmail.com> - 2018-04-28 19:15 +0000
                Re: Life on Europa in scifi? Kevrob <kevrob@my-deja.com> - 2018-04-28 13:11 -0700
                Re: Life on Europa in scifi? Greg Goss <gossg@gossg.org> - 2018-04-29 09:24 -0600
                Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-04-29 11:28 -0400
                Re: Life on Europa in scifi? "Default User" <defaultuserbr@yahoo.com> - 2018-04-30 00:16 +0000
          Re: Life on Europa in scifi? Paul Colquhoun <newsposter@andor.dropbear.id.au> - 2018-04-27 18:01 +1000
            Re: Life on Europa in scifi? Your Name <YourName@YourISP.com> - 2018-04-28 12:32 +1200
              Re: Life on Europa in scifi? David Johnston <davidjohnston29@yahoo.com> - 2018-04-27 20:06 -0600
              Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-04-27 22:07 -0400
                Re: Life on Europa in scifi? Your Name <YourName@YourISP.com> - 2018-04-28 14:26 +1200
                Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-04-28 00:49 -0400
                Re: Life on Europa in scifi? David DeLaney <daviddelaney@earthlink.net> - 2018-04-29 04:01 -0500
                Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-04-29 09:16 -0400
            Re: Life on Europa in scifi? Robert Carnegie <rja.carnegie@excite.com> - 2018-04-28 05:36 -0700
              Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-04-28 09:51 -0400
                Re: Life on Europa in scifi? Robert Carnegie <rja.carnegie@excite.com> - 2018-04-28 10:59 -0700
                Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-04-28 15:15 -0400
                Re: Life on Europa in scifi? Robert Carnegie <rja.carnegie@excite.com> - 2018-04-28 13:37 -0700
          Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-04-27 22:05 -0400
            Re: Life on Europa in scifi? Your Name <YourName@YourISP.com> - 2018-04-28 14:28 +1200
              Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-04-28 00:50 -0400
                Re: Life on Europa in scifi? Your Name <YourName@YourISP.com> - 2018-04-28 18:37 +1200
                Re: Life on Europa in scifi? David Johnston <davidjohnston29@yahoo.com> - 2018-04-28 01:05 -0600
                Re: Life on Europa in scifi? Dimensional Traveler <dtravel@sonic.net> - 2018-04-28 09:25 -0700
                Re: Life on Europa in scifi? Ninapenda Jibini <taustinca@gmail.com> - 2018-04-28 19:13 +0000
                Re: Life on Europa in scifi? Paul Colquhoun <newsposter@andor.dropbear.id.au> - 2018-04-29 11:18 +1000
                Re: Life on Europa in scifi? Your Name <YourName@YourISP.com> - 2018-04-29 17:04 +1200
                Re: Life on Europa in scifi? Dimensional Traveler <dtravel@sonic.net> - 2018-04-28 23:24 -0700
                Re: Life on Europa in scifi? Your Name <YourName@YourISP.com> - 2018-04-29 19:20 +1200
                Re: Life on Europa in scifi? David Johnston <davidjohnston29@yahoo.com> - 2018-04-29 01:43 -0600
                Re: Life on Europa in scifi? Dimensional Traveler <dtravel@sonic.net> - 2018-04-29 10:21 -0700
                Re: Life on Europa in scifi? Thomas Koenig <tkoenig@netcologne.de> - 2018-04-29 18:11 +0000
                Re: Life on Europa in scifi? Cryptoengineer <treifamily@gmail.com> - 2018-04-29 18:57 -0500
                Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-04-29 20:18 -0400
                Re: Life on Europa in scifi? Titus G <noone@nowhere.com> - 2018-04-30 15:02 +1200
                Re: Life on Europa in scifi? Your Name <YourName@YourISP.com> - 2018-04-30 14:19 +1200
                Re: Life on Europa in scifi? Paul Colquhoun <newsposter@andor.dropbear.id.au> - 2018-04-30 13:21 +1000
                Re: Life on Europa in scifi? Your Name <YourName@YourISP.com> - 2018-04-30 18:15 +1200
                Re: Life on Europa in scifi? Dimensional Traveler <dtravel@sonic.net> - 2018-04-29 23:17 -0700
                Re: Life on Europa in scifi? Thomas Koenig <tkoenig@netcologne.de> - 2018-05-01 00:05 +0000
                Re: Life on Europa in scifi? Christian Weisgerber <naddy@mips.inka.de> - 2018-05-01 15:33 +0000
                Re: Life on Europa in scifi? mvp@web1.calweb.com (Mike Van Pelt) - 2018-05-01 19:00 +0000
                Re: Life on Europa in scifi? Christian Weisgerber <naddy@mips.inka.de> - 2018-05-01 20:09 +0000
                Re: Life on Europa in scifi? Robert Carnegie <rja.carnegie@excite.com> - 2018-04-30 00:28 -0700
                Re: Life on Europa in scifi? David DeLaney <daviddelaney@earthlink.net> - 2018-04-30 03:37 -0500
                Re: Life on Europa in scifi? David Johnston <davidjohnston29@yahoo.com> - 2018-04-30 10:07 -0600
                Re: Life on Europa in scifi? Robert Carnegie <rja.carnegie@excite.com> - 2018-04-30 14:53 -0700
                Re: Life on Europa in scifi? Peter Trei <petertrei@gmail.com> - 2018-04-30 11:46 -0700
                Re: Life on Europa in scifi? Gene Wirchenko <genew@telus.net> - 2018-04-30 11:29 -0700
                Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-04-30 20:48 -0400
                Re: Life on Europa in scifi? Gene Wirchenko <genew@telus.net> - 2018-05-01 11:10 -0700
                Re: Life on Europa in scifi? Jibini Kula Tumbili Kujisalimisha <taustinca@gmail.com> - 2018-05-01 11:18 -0700
                Re: Life on Europa in scifi? Dimensional Traveler <dtravel@sonic.net> - 2018-05-01 15:30 -0700
                Re: Life on Europa in scifi? Your Name <YourName@YourISP.com> - 2018-05-02 18:21 +1200
                Re: Life on Europa in scifi? Chris Buckley <alan@sabir.com> - 2018-05-02 12:09 +0000
                Re: Life on Europa in scifi? Dimensional Traveler <dtravel@sonic.net> - 2018-05-02 07:45 -0700
                Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-05-02 19:16 -0400
                Re: Life on Europa in scifi? Greg Goss <gossg@gossg.org> - 2018-05-02 19:54 -0600
                Re: Life on Europa in scifi? Ninapenda Jibini <taustinca@gmail.com> - 2018-05-03 03:24 +0000
                Re: Life on Europa in scifi? Your Name <YourName@YourISP.com> - 2018-05-03 18:22 +1200
                Re: Life on Europa in scifi? Peter Trei <petertrei@gmail.com> - 2018-05-03 06:16 -0700
                Re: Life on Europa in scifi? D B Davis <g@crcomp.net> - 2018-05-03 14:47 +0000
                Re: Life on Europa in scifi? Dimensional Traveler <dtravel@sonic.net> - 2018-05-03 09:30 -0700
                Re: Life on Europa in scifi? Your Name <YourName@YourISP.com> - 2018-05-04 09:03 +1200
                Re: Life on Europa in scifi? David Johnston <davidjohnston29@yahoo.com> - 2018-05-03 15:17 -0600
                Re: Life on Europa in scifi? Jibini Kula Tumbili Kujisalimisha <taustinca@gmail.com> - 2018-05-03 14:52 -0700
                Re: Life on Europa in scifi? Paul Colquhoun <newsposter@andor.dropbear.id.au> - 2018-05-04 08:42 +1000
                Re: Life on Europa in scifi? David DeLaney <daviddelaney@earthlink.net> - 2018-05-03 21:09 -0500
                Re: Life on Europa in scifi? Gene Wirchenko <genew@telus.net> - 2018-05-03 20:49 -0700
                Re: Life on Europa in scifi? Your Name <YourName@YourISP.com> - 2018-05-04 18:05 +1200
                Re: Life on Europa in scifi? Peter Trei <petertrei@gmail.com> - 2018-05-04 06:25 -0700
                Re: Life on Europa in scifi? David DeLaney <daviddelaney@earthlink.net> - 2018-05-04 22:06 -0500
                Re: Life on Europa in scifi? Thomas Koenig <tkoenig@netcologne.de> - 2018-05-04 06:09 +0000
                Re: Life on Europa in scifi? Your Name <YourName@YourISP.com> - 2018-05-04 18:39 +1200
                Re: Life on Europa in scifi? Peter Trei <petertrei@gmail.com> - 2018-05-04 06:29 -0700
                Re: Life on Europa in scifi? Gene Wirchenko <genew@telus.net> - 2018-05-04 15:21 -0700
                Re: Life on Europa in scifi? Your Name <YourName@YourISP.com> - 2018-05-05 11:31 +1200
                Re: Life on Europa in scifi? David Johnston <davidjohnston29@yahoo.com> - 2018-05-04 18:56 -0600
                Re: Life on Europa in scifi? Titus G <noone@nowhere.com> - 2018-05-05 16:01 +1200
                Re: Life on Europa in scifi? Robert Carnegie <rja.carnegie@excite.com> - 2018-05-05 02:55 -0700
                Re: Life on Europa in scifi? Robert Woodward <robertaw@drizzle.com> - 2018-05-05 10:14 -0700
                Re: Life on Europa in scifi? David Johnston <davidjohnston29@yahoo.com> - 2018-05-05 11:46 -0600
                Re: Life on Europa in scifi? Greg Goss <gossg@gossg.org> - 2018-05-05 19:10 -0600
                Re: Life on Europa in scifi? David DeLaney <daviddelaney@earthlink.net> - 2018-05-06 19:17 -0500
                Re: Life on Europa in scifi? Gene Wirchenko <genew@telus.net> - 2018-05-01 22:39 -0700
                Re: Life on Europa in scifi? Robert Carnegie <rja.carnegie@excite.com> - 2018-05-01 13:29 -0700
                Re: Life on Europa in scifi? Dimensional Traveler <dtravel@sonic.net> - 2018-05-01 15:32 -0700
                Re: Life on Europa in scifi? Robert Carnegie <rja.carnegie@excite.com> - 2018-05-02 13:49 -0700
                Re: Life on Europa in scifi? Dimensional Traveler <dtravel@sonic.net> - 2018-05-02 14:44 -0700
                Re: Life on Europa in scifi? Jibini Kula Tumbili Kujisalimisha <taustinca@gmail.com> - 2018-05-02 15:13 -0700
                Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-05-02 19:05 -0400
                Re: Life on Europa in scifi? Peter Trei <petertrei@gmail.com> - 2018-05-03 06:06 -0700
                Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-05-01 19:45 -0400
            Re: Life on Europa in scifi? Quadibloc <jsavard@ecn.ab.ca> - 2018-06-01 19:29 -0700
              Re: Life on Europa in scifi? Kevrob <kevrob@my-deja.com> - 2018-06-01 19:50 -0700
          Re: Life on Europa in scifi? Thomas Koenig <tkoenig@netcologne.de> - 2018-04-29 18:05 +0000
        Re: Life on Europa in scifi? Sjouke Burry <burrynulnulfour@ppllaanneett.nnll> - 2018-04-28 22:14 +0200
  Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-04-29 12:39 -0400
    Re: Life on Europa in scifi? "Robert Clark" <rgregoryclark@gmSPAMBLOCKail.com> - 2018-05-28 07:19 -0400
      Re: Life on Europa in scifi? Fred J. McCall <fjmccall@gmail.com> - 2018-05-28 05:38 -0700
        Re: Life on Europa in scifi? Jeff Findley <jfindley@cinci.nospam.rr.com> - 2018-05-28 10:40 -0400
          Re: Life on Europa in scifi? Fred J. McCall <fjmccall@gmail.com> - 2018-05-28 11:36 -0700
            Re: Life on Europa in scifi? Jeff Findley <jfindley@cinci.nospam.rr.com> - 2018-05-29 06:19 -0400
              Re: Life on Europa in scifi? Fred J. McCall <fjmccall@gmail.com> - 2018-05-30 01:08 -0700
                Re: Life on Europa in scifi? Jeff Findley <jfindley@cinci.nospam.rr.com> - 2018-05-30 06:30 -0400
                Re: Life on Europa in scifi? Fred J. McCall <fjmccall@gmail.com> - 2018-05-30 15:00 -0700
        Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) "Robert Clark" <rgregoryclark@gmSPAMBLOCKail.com> - 2018-05-28 13:28 -0400
          Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) J. Clarke <jclarke.873638@gmail.com> - 2018-05-28 13:35 -0400
      Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-05-28 10:27 -0400
        Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) "Robert Clark" <rgregoryclark@gmSPAMBLOCKail.com> - 2018-05-28 14:03 -0400
        Re: Life on Europa in scifi? Fred J. McCall <fjmccall@gmail.com> - 2018-05-28 11:30 -0700
          Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-05-28 18:00 -0400
            Re: Life on Europa in scifi? Fred J. McCall <fjmccall@gmail.com> - 2018-05-28 23:39 -0700
              Re: Life on Europa in scifi? J. Clarke <jclarke.873638@gmail.com> - 2018-05-29 02:59 -0400
                Re: Life on Europa in scifi? Fred J. McCall <fjmccall@gmail.com> - 2018-05-29 03:07 -0700
                Re: Life on Europa in scifi? Alain Fournier <alain245@videotron.ca> - 2018-05-29 07:10 -0400
                Re: Life on Europa in scifi? Robert Carnegie <rja.carnegie@excite.com> - 2018-05-29 14:36 -0700
                Re: Life on Europa in scifi? Fred J. McCall <fjmccall@gmail.com> - 2018-05-30 01:11 -0700
            Once into the breach: SSTO's (was more Re: Life on Europa in scifi?) "Robert Clark" <rgregoryclark@gmSPAMBLOCKail.com> - 2018-05-30 01:46 -0400
              Re: Once into the breach: SSTO's (was more Re: Life on Europa in scifi?) Thomas Koenig <tkoenig@netcologne.de> - 2018-06-01 20:07 +0000
                Re: Once into the breach: SSTO's (was more Re: Life on Europa in scifi?) J. Clarke <jclarke.873638@gmail.com> - 2018-06-01 22:51 -0400
                Re: Once into the breach: SSTO's (was more Re: Life on Europa in scifi?) Thomas Koenig <tkoenig@netcologne.de> - 2018-06-02 16:19 +0000
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) "Robert Clark" <rgregoryclark@gmSPAMBLOCKail.com> - 2018-06-03 04:17 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) J. Clarke <jclarke.873638@gmail.com> - 2018-06-03 04:38 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Fred J. McCall <fjmccall@gmail.com> - 2018-06-03 01:58 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) J. Clarke <jclarke.873638@gmail.com> - 2018-06-03 05:10 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Lawrence Watt-Evans <misenchantedpress@gmail.com> - 2018-06-03 14:01 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Fred J. McCall <fjmccall@gmail.com> - 2018-06-03 14:06 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) J. Clarke <jclarke.873638@gmail.com> - 2018-06-03 17:59 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Fred J. McCall <fjmccall@gmail.com> - 2018-06-03 16:12 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) J. Clarke <jclarke.873638@gmail.com> - 2018-06-03 19:54 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Fred J. McCall <fjmccall@gmail.com> - 2018-06-04 00:41 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Dimensional Traveler <dtravel@sonic.net> - 2018-06-03 19:36 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Fred J. McCall <fjmccall@gmail.com> - 2018-06-04 01:00 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Dimensional Traveler <dtravel@sonic.net> - 2018-06-04 07:32 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Alan Baker <nunya@ness.biz> - 2018-06-04 09:13 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Fred J. McCall <fjmccall@gmail.com> - 2018-06-04 16:08 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) J. Clarke <jclarke.873638@gmail.com> - 2018-06-04 19:37 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Jeff Findley <jfindley@cinci.nospam.rr.com> - 2018-06-05 07:25 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Fred J. McCall <fjmccall@gmail.com> - 2018-06-05 13:39 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Jeff Findley <jfindley@cinci.nospam.rr.com> - 2018-06-06 06:44 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) J. Clarke <jclarke.873638@gmail.com> - 2018-06-05 20:55 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Fred J. McCall <fjmccall@gmail.com> - 2018-06-05 22:59 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Ninapenda Jibini <taustinca@gmail.com> - 2018-06-06 06:20 +0000
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Fred J. McCall <fjmccall@gmail.com> - 2018-06-06 02:09 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Jibini Kula Tumbili Kujisalimisha <taustinca@gmail.com> - 2018-06-06 10:09 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Jeff Findley <jfindley@cinci.nospam.rr.com> - 2018-06-06 07:00 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Jibini Kula Tumbili Kujisalimisha <taustinca@gmail.com> - 2018-06-06 10:24 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Jeff Findley <jfindley@cinci.nospam.rr.com> - 2018-06-06 06:50 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) J. Clarke <jclarke.873638@gmail.com> - 2018-06-06 20:54 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Fred J. McCall <fjmccall@gmail.com> - 2018-06-06 18:16 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Thomas Koenig <tkoenig@netcologne.de> - 2018-06-06 06:21 +0000
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Fred J. McCall <fjmccall@gmail.com> - 2018-06-06 02:14 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Jeff Findley <jfindley@cinci.nospam.rr.com> - 2018-06-06 07:08 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Thomas Koenig <tkoenig@netcologne.de> - 2018-06-07 16:42 +0000
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Fred J. McCall <fjmccall@gmail.com> - 2018-06-07 12:26 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) "Robert Clark" <rgregoryclark@gmSPAMBLOCKail.com> - 2018-06-10 20:16 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Fred J. McCall <fjmccall@gmail.com> - 2018-06-10 20:13 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2018-07-11 16:12 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) scott@slp53.sl.home (Scott Lurndal) - 2018-06-04 15:40 +0000
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Fred J. McCall <fjmccall@gmail.com> - 2018-06-04 16:11 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) hamish.laws@gmail.com - 2018-06-03 16:47 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Thomas Koenig <tkoenig@netcologne.de> - 2018-06-03 10:29 +0000
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) J. Clarke <jclarke.873638@gmail.com> - 2018-06-03 09:25 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Fred J. McCall <fjmccall@gmail.com> - 2018-06-03 14:21 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) J. Clarke <jclarke.873638@gmail.com> - 2018-06-03 18:19 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Fred J. McCall <fjmccall@gmail.com> - 2018-06-03 16:15 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) J. Clarke <jclarke.873638@gmail.com> - 2018-06-03 19:55 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Fred J. McCall <fjmccall@gmail.com> - 2018-06-04 00:44 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) "Robert Clark" <rgregoryclark@gmSPAMBLOCKail.com> - 2018-06-17 09:30 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Jeff Findley <jfindley@cinci.nospam.rr.com> - 2018-06-17 16:55 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) J. Clarke <jclarke.873638@gmail.com> - 2018-06-17 16:59 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Greg Goss <gossg@gossg.org> - 2018-06-17 19:29 -0600
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Fred J. McCall <fjmccall@gmail.com> - 2018-06-18 00:01 -0700
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Jeff Findley <jfindley@cinci.nospam.rr.com> - 2018-06-19 06:58 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) "Robert Clark" <rgregoryclark@gmSPAMBLOCKail.com> - 2018-06-21 16:34 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) Jeff Findley <jfindley@cinci.nospam.rr.com> - 2018-06-22 07:30 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) "Robert Clark" <rgregoryclark@gmSPAMBLOCKail.com> - 2018-06-23 14:05 -0400
                Re: Once more into the breach: SSTO's (was Re: Life on Europa in scifi?) JF Mezei <jfmezei.spamnot@vaxination.ca> - 2018-06-23 17:22 -0400

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