sjb (06/04/82)
Boeing Company unveiled yesterday the first of the Upper Inertial Stage rockets to be launched from the space shuttle. They pack enough power to launch satellite from the cargo bay of the shuttle into geosynchronous orbits and also to send scientific packages to other planets. The IUS can also be used as the second stage of the Air Force's Titan booster. IUS I will be used during next January's launch of the Challenger.