Mission Ready by Design: Modernizing Squadron Operations & Maintenance for the B-21

The Air Force Civil Engineer Center (AFCEC) is spearheading a multi-year construction program to support the beddown of the B-21 Raider, the Air Force’s next-generation stealth bomber. At Ellsworth Air Force Base, this $1 billion investment includes the renovation and expansion of key Squadron Operations and Aircraft Maintenance Unit (AMU) facilities, ensuring they are ready to support the 34th Bomb Squadron and the 28th Bomb Wing’s evolving mission requirements.

As managing partner of a joint venture, FSB provided planning charrettes, programming documentation services for AMU #1 (Building 7274) and AMU #2 (Building 7270) and full designs for AMU #1. For Building 7274, the team developed a two-story addition and selective renovations to create secure SAPF and SCIF mission spaces, updated maintenance areas, and modernized building systems. For Building 7270, simultaneous planning and programming efforts addressed functional reconfiguration, system upgrades, and mission readiness for its future role as a B-21 operations facility. Both facilities required innovative solutions to balance modernization with secure operational continuity.

Design highlights include the integration of advanced security requirements into the architectural design, resilient MEP systems tailored for South Dakota’s climate, and energy-efficient strategies that reduce life-cycle costs while meeting stringent UFC and sustainability standards. By working closely with base leadership, users, and USACE, FSB’s team delivered mission-ready facilities that combine operational efficiency, resiliency, and sustainability—ensuring Ellsworth AFB is prepared to support the B-21 Raider’s mission for decades to come.