
Aerojet Rocketdyne [AJRD] and Orbital ATK [OA] both announced late Aug. 21 that they have joined the Northrop Grumman [NOC] team that will compete against Boeing [BA] to develop the U.S. Air Force’s Ground Based Strategic Deterrent (GBSD).Northrop Grumman spokesman Tim Paynter said that “both Aerojet Rocketdyne and Orbital ATK are providing propulsion solutions.” While Orbital ATK declined to discuss its specific role, Aerojet Rocketdyne said it “will evaluate multiple propulsion options and provide early designs” to Northrop Grumman.“Over the…