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Hybrid Motor Performance by
william mook
http://members.aol.com/cv192/engine.html
A nitrous oxide and rubber NOX/HTPB (R45M rubber) is reported to
produce 235 second Isp. This is equal to an exhaust...
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0 |
926 |
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What if I were designing Huygens II by
Graeme Bartlett
If I were designing the nex Titan mission
I would go for a hydrogen balloon. It would not explode on Titan.
I like the idea of wind power.
At the temperature...
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0 |
526 |
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0 |
735 |
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Benfords in the News by
Geoffrey
Jim and Greg Benford are featured in _New Scientist_
http://www.newscientist.com/channel/space/mg18524846.500
along with a brief quote from me, about...
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0 |
468 |
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Rapid manufacturing by
Andrew Nowicki
Oops... The Arcam EBM S12 fabrication speed
is only about 17 cubic millimeters per second,
but its scanning speed is 1 km/s. A much more
powerful electron gun...
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0 |
481 |
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0 |
1,226 |
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quiet revolution by
Kent Paul Dolan
Space.com has a nice non-technical summary article on
going into space that is worth calling to the attention
of those here who might otherswise miss...
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0 |
839 |
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Manned Mercury flights with Little Joe by
Ilpo Lagerstedt
I am reading James Schefter´s book The Race. He writes, p. 96, that
there were some thoughts to make manned shots with Little Joe. I
didn´t know that. How...
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0 |
619 |
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0 |
862 |
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Lunar Catapult Capture by
[email protected]
I'm trying to think through different approaches to capturing
material catapulted off the lunar surface. The most comprehensive
reference design I've come...
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0 |
497 |
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Direct methods for optimal control by
mohamad
Hi,
I will use a direct approch for solving a trajectory optimization
problem(optimal control). I find some approches for this , I have some
queations, If it...
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0 |
676 |
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Best mass ratio to orbit? by
Monte Davis
Is there a source online or elsewhere that ranks past and current
boosters (and STS, Pegasus, other alternatives) in order of mass
ratio? Ideally, gross pad...
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0 |
570 |
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Sonic diamond nano-pore rocket? by
TomRC
I'd like to bounce a propulsion idea off the experts of this group:
Visualize a very small, v-shaped notch in a thin layer of diamond -
maybe 100nm wide and...
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October 15th 04 12:17 AM
by TomRC
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0 |
592 |
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November 8th 04 05:25 PM
by sanman
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0 |
480 |
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"Centauri Dreams" by
Geoffrey A. Landis
I just received my copy of Paul Gilster's new book _Centauri Dreams:
Imagining and Planning Interstellar Exploration_. This is a book
about people working on...
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0 |
1,104 |
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acoustic and thermic insulation by
laetitia
Hi,
I'm a scientific researcher in a french company.
I'm looking for materials having good acoustic and thermic insulation properties.
What parameters are...
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0 |
666 |
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Pulse High Symbol by
Zeefor
Could someone direct me to a text version (ie regular Word text) of a
'pulse high' symbol? I've been looking everywhere but it's quite
difficult. Thank you.
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December 16th 04 01:17 PM
by Zeefor
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0 |
468 |
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Web article about Luna-3 by
Sven Grahn
I have put together an article about Luna-3 based on Chertok's book, Russian
papers I have found in my files and help from Don P Mitchell.
The idea was to...
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0 |
606 |
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0 |
463 |
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Rocketplane XP - what's the TPS? by
Malcolm Street
wrote:
Any know how they are going to do Thermal Protection for the
Rocketplane XP?
Surely a stock Leer Jet fusalage will melt on...
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0 |
564 |