Talk:Solar thermal rocket

message: Can we get some SVG drawings of how the various types of this rocket class work?  Does SVG support animation?  It might help. Will (Talk - contribs) 18:17, 5 February 2007 (UTC)
thread_title:  Diagrams 

message: A high thrust version of thermal nuclear rockets has been proposed that boosts the thrust by burning the hot hydrogen using liquid oxygen.  It is called the LANTR engine.  A solar thermal version may be possible.  See
Andrew Swallow (talk) 17:30, 25 March 2009 (UTC)
thread_title:  High thrust version by burning the hydrogen with LOX 

message: Boeing has proposed keeping hydrogen cold in propellant depots by means of a sun shield, basically a shiny curtain.  This may work on low thrust rockets.  Andrew Swallow (talk) 03:45, 2 October 2009 (UTC)
thread_title:  Propellant Storage 

message: Solar thermal rockets have a higher Isp than chemical rockets but (normally) a lower Isp than rival electric propulsion.  The Solar Thermal rockets have a higher thrust than electric propulsion with similar sized light collectors.  The optics are not effected by radiation so these thrusters can be used by rockets passing through the Van Allen Radiation Belts.
A spaceship with an Isp of 1000 seconds travelling between Low Earth Orbit (LEO) and Earth-Moon Lagrange point L1 (EML1), a Delta-V 3.77 km/s, will need to carry 
exp[Delta-V/(Isp * g)]-1 = exp[3770/(1000 * 9.81)]-1 = 0.469 times its mass in fuel.  
The return trip needs 1.16 times its mass.  This may make using a reusable solar thermal rocket space tug financially viable.
Andrew Swallow (talk) 04:09, 4 October 2010 (UTC)
thread_title:  Missions 

message: overall, this page has quite wonderful information in an encyclopedic tone. There are many cases of missing or underused citations through the page, and the Zegler and Kuttler pdf link is no longer available. 
I found a link for it right here, and will let you fix this link when you get a chance.
http://bigidea.nianet.org/wp-content/uploads/2016/10/DepotBasedTransportationArchitecture20101.pdf
I think the lead section could use more information which point to the benefits of such an invention which a layperson could understand. This is a highly technical article, which is fine, but stating the seemingly obvious concept that these could potentially reduce the launch costs of commercial satellites and raise performance for interplanetary missions should be added there. Also, I think the second statement 
   
   Solar thermal propulsion is also a good candidate for use in reusable inter-orbital tugs as it is a high-efficiency low-thrust system that can be refueled with relative ease
should be covered in more detail in the main body of the article. I think the sections are all useful and organized well, but I think another section talking about the pro's and con's and likelihood of production could be added.  
Discusandhammer (talk) 04:30, 22 February 2017 (UTC)
thread_title:  suggestions 

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