Re: 10,000 mph rockets!

On Sun, 30 Dec 2007 08:22:06 -0600, in a place far, far away, Pat
Flannery <flanner@xxxxxxxxxx> made the phosphor on my monitor glow in
such a way as to indicate that:



Donald Ratsch wrote:

Lox-gasoline, Lox-alcohol, and one of the mail rocket designs uses
Lox-propane.

Pat

For those atheists here, you are in for a surprise
http://www.godtube.com/view_video.php?viewkey=8f1da580cbfd9b0fecd3

Konstantine Tsiolkovsky ** pointed out (correctly) that the most
efficient pure chemical rocket fuel propellant combo was Lox/LH2 in the
late 1900's.

Not correctly. And it depends on what you mean by "efficient." It's
not necessarily "efficient" in terms of overall vehicle performance,
due to the low density (and correspondingly poor structural fraction
for the tank) of the hydrogen.

If you mean Isp, there are several propellant combinations that are
better, if you don't mind a little flourine.
.