Roger Boisjoly, an engineer at Morton Thiokol, which manufactured the Space Shuttle SRBs, later told a hearing into the Challenger accident: "SRM 15 [STS 51-C] actually increased [our] concern ...
Northrop Grumman Innovation Systems continues production of solid rocket booster (SRB) segments ... unchanged from its Shuttle heritage. The RSRMV is an evolution of the Space Shuttle Reusable ...