
The Air Force on Wednesday said it awarded Orbital ATK [OA] and Space Exploration Technologies Corp. (SpaceX) Other Transaction Agreement (OTA) contracts as part of its effort to get of the RD-180 by 2019.Orbital ATK received $47 million for development of the Common Booster Segment main stage, the Graphite Epoxy Motor (GEM) 63XL strap-on booster and an extendable nozzle for Blue Origin’s BE-3U/EN upper stage engine. These rocket propulsion systems are intended for use on an Orbital ATK next-generation launch…