
The Air Force completed the preliminary design review (PDR) for the Northrop Grumman [NOC]- developed Ground Based Strategic Deterrent (GBSD) in late April, the service said May 15. The PDR took place April 28-30 and is the latest major programmatic milestone for the service to undertake virtually, while many program personnel are working limited hours or from home while adhering to state and local COVID-19 pandemic guidance. The Air Force hosted the GBSD PDR meetings in a secure virtual environment…