Jon S. Berndt wrote:
"Herb Schaltegger" wrote in
message


Before we come up with a realistic appraisal we would have to know
whether 5-segment SRBs end up being selected for the design baseline,
wouldn't we?

Oh, yeah. Forgot about that. Assume regular, not premium. :-)

http://www.aiaa.org/aerospace/images/articleimages/pdf/iannottajune04.pdf

"Because of the Challenger explosion in 1986, some NASA officials would
like to discontinue the use of solid rocket motors for the CEV
launcher."

Challenger's Ghost