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Old September 15 2012, 08:11 PM   #4
publiusr
Commodore
 
Re: 100 Year Starship Management group picked

This is a good site for options: http://www.projectrho.com/public_htm...enginelist.php

Smoother than the nuclear pulse orion concept is the Nuclear Salt Water Rocket
http://www.projectrho.com/public_htm...t-water_Rocket

Its fringe-worthy--but look how well it does with a 90% solution on this graph:
www.projectrho.com/public_html/rocket/images/enginelist/rocketChart.jpg

Best yet: The advantage of NSWR is that this is the only known propulsion system that combines high exhaust velocity with high thrust.

Thrust 13,000,000 newtons with 4,700,000 m/s exhaust velocity--a one two punch!

NTR DUMBO looks more do-able
http://www.projectrho.com/public_htm...TR-SOLID/DUMBO

This would provide 3,500,000 newtons thrust

Now imagine you use that in place of a Centaur upper stage, and have AIMSTAR as a payload:
http://www.engr.psu.edu/antimatter/P...AIMStar_99.pdf

This would provide 598,000 m/s exhaust velocity. This alone would allow a trip to 10,000 AU in 50 years. Couple this with DUMBO NTR to get most of its useful life extra-solar--NOW you have a souped up New Horizons.
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