[ RadSafe ] Fission, Fusion, Mars, Spacecraft...

JPreisig at aol.com JPreisig at aol.com
Tue Mar 26 00:06:31 CDT 2013

Dear Radsafe,
     Hi.  Hope you all are well.
     Chemical Propulsion Energy --- about 1   keV
     Fission Propulsion Energy (reactor enrichment) ---  about 1 MeV
     Fission Propulsion Energy (100% enriched???)  ---  about 20 x  1 MeV
     These are crude energy levels associated with  these various rocket 
etc. propulsion systems.
You can do better calculations of these levels at home.
     Some rather crude calculations involving rocket  kinetic energy show 
me that a fully enriched Uranium propulsion system  might go 100 times faster 
in velocity than a chemically based propulsion  system.
Of course, spaceship/rocket materials considerations and limitations of  
astronauts's ability to endure/survive very large g forces may limit the  
velocities and/or accelerations a spaceship or rocket can use.
   A ground launched rocket using chemical propulsion could  place a 
spaceship using fission/fusion/chemical propulsion into space.  One  might then be 
able to use enriched fission propulsion to increase a spaceship's  velocity 
to get to Mars sooner than just using chemical propulsion.
  The Tito/Zubrin??? 2018 flyby (only???)mission to Mars is expected  to 
take 501 days or so.  Maybe adding fission propulsion to this spaceship,  one 
could reduce this trip time to 250 days.  This starts to sound more  do-able 
all the time.  If fully enriched Uranium propulsion could be fully  used 
(not likely), the trip time
might take only 5 days.
   The propulsion systems we are used to include: chemical  propulsion, 
fission propulsion, fusion propulsion, enriched fission propulsion  and perhaps 
several other propulsion systems which are being developed/used  now.  The 
UFO and Ancient Alien shows allude to these several other  (advanced???) 
propulsion systems.
One you might be able to figure out yourself.  The other is directly  
described on one of these Ancient Alien/UFO shows (see shows on the H2 Channel  
    Perhaps someday soon we?? will be able to use an  enriched 
fission/chemical hybrid system to propel an Earth atmosphere spaceship  which is 
robotically controlled from the Earth's surface.  Such a  spaceship
could go significantly faster than a spacecraft with human beings  aboard.  
Is all this starting to sound familiar???
   Wonder if Dr. Von Braun was a student of Goddard and others,  by 
studying the literature???  One UFO/Ancient Alien show describes another  source of 
Von Braun's Advanced Flight Systems (not necessarily Rockets)  knowledge.  
Won't go into it here.
   Have a good week...
                Joe Preisig

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