At 07:06 PM 5/11/2004 -0600, you wrote:
Hey everyone,
Just wanted to let you know there is a new update on the igniter project
posted, with
some pictures:
http://www.et.byu.edu/groups/sdc/IgniterProject/updates/11May04.html
We'll probably have some more to post in a week or so. Any feedback
On Wednesday, May 12, 2004, at 02:07 PM, John Carmack wrote:
One comment :
From what we've seen so far, most of them run from $200+, and they
also are mostly designed for very low outlet pressures (150psi).
I would suggest that designing experimental rockets for 150 psi feed
pressures is a
At 02:43 PM 5/12/2004 -0400, you wrote:
On Wednesday, May 12, 2004, at 02:07 PM, John Carmack wrote:
One comment :
From what we've seen so far, most of them run from $200+, and they also
are mostly designed for very low outlet pressures (150psi).
I would suggest that designing experimental
- Original Message -
From: Andrew Case [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, May 12, 2004 11:43 AM
Subject: Re: [ERPS] Re: New Igniter Project Update
If I was starting
from scratch I'd spec nitrous oxide/Isopropanol, 150 psi feed pressure,
and a mix ratio that
John Carmack wrote:
Well, you can't get nitrous down to 150 psi feed pressure unless you
refrigerate it, so you might be stuck with high pressure there.
But it doesn't have to be refrigerated very much to get down
to 150 psi. Less than halfway from room temp to dry ice temperatures.
I haven't
Hi ...
This was posted to slashdot.org about 3pm today:
Science: Amateur Rocket to Carry Ham Radio Payload to Space
n1ywb writes An amateur rocket team this month will attempt to send a
21-foot-tall rocket carrying a ham radio avionics package into the
fringes of space. The launch by the
last CSXT try to reach space ended some three seconds after launch
when the rocket's engine exploded. Avionics Team Leader Eric Knight,
KB1EHE, says CSXT has since rebounded from that devastating blow with
a newer, bigger vehicle...
Ah yes, the Wile E. Coyote method of developing reliable
On Wed, 12 May 2004, George William Herbert wrote:
John Carmack wrote:
Well, you can't get nitrous down to 150 psi feed pressure unless you
refrigerate it, so you might be stuck with high pressure there.
But it doesn't have to be refrigerated very much to get down
to 150 psi. Less than
