Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!sco!gorn!everyman From: everyman@gorn.santa-cruz.ca.us (arvey j. shier) Newsgroups: sci.space.shuttle Subject: Re: Solid Fuel Message-ID: <2055@gorn.santa-cruz.ca.us> Date: 9 Mar 91 20:19:46 GMT References: <1991Mar4.163239.4137@engage.enet.dec.com> Reply-To: everyman@gorn.santa-cruz.ca.us (arvey j. shier) Organization: The Planet Gorn Lines: 7 The aluminum in the SRB propellant is the fuel for the combustion process. However, the amount of aluminum in the mixture does corellate with the value of the Isp achieved. You are right when you state that the details of the composition and all the combustion phenomena are available from any of the major organizations involved with the shuttle. NASA, Thiokol Chemical, etc.