http://news.bbc.co.uk/2/hi/science/nature/3724841.stm says the burn time of CSXT's 10" diameter solid motor was 14 seconds. I'm guessing but it sounds like some end-burning had to be cast in the grain for that long of a burn duration. members.aol.com/beanstalkr/project/ _______________________________________________ ERPS-list mailing list [EMAIL PROTECTED] http://lists.erps.org/mailman/listinfo/erps-list