Boeing and Northrop Grumman are making closing arguments for their Ground-Based Strategic Deterrent designs as the companies prepare for a contract award by the end of the fiscal year. The Air Force plans to award up to two contracts for the three-year technology maturation and risk reduction phase. Lockheed Martin, which is also in the running for a TMRR contract, declined to comment. All three companies are proposing three-stage missiles similar to the current Minuteman III system, which GBSD will...
