We have moved to http://www.XPrizeNews.org.
Sunday, January 25, 2004
Armadillo Aerospace News: Vehicle hot firing
After a great deal of work this week, we got the entire vehicle together and ran propellant through it.
We got new stainless spreading plates for the engines from http://www.globalstencil.com/ . They have been turning our orders around from CAD drawing to (local) delivery in under a week, which is really nice for our schedule. The new plates have 848 holes of 0.022” diameter, which is over four times as many holes, but with a smaller diameter. We tested the spreading by flowing propane / air through a chamber blocked by the spreading plate and seeing how many 20 mesh screens we needed to add to get a uniformly even flame without hot jets in the spreading plate hole pattern. I was a little surprised to see that it still took seven screens, down only three from our 204 hole spreading plates. Read More
Archives: Latest News | April 2003 | May 2003 | June 2003 | July 2003 | August 2003 | September 2003 | October 2003 | November 2003 | December 2003 | January 2004 | February 2004 | March 2004 | April 2004 | May 2004 | June 2004 | July 2004 | Site Feed