Defense Industry

Platforms & Systems

U.S. Air Force photo by Tech. Sgt. Codie Trimble

Sierra Nevada Starts Flight Trials on $13 Billion Program to Replace the E-4B National Airborne Operations Center

October 7, 2025
The first company-led flight of the Survivable Airborne Operations Center took place on Aug 7, 2025, out of the Aviation Innovation and Technology Center at Dayton International Airport. The prime contractor reported the sortie as the opening step in a structured test series. Early work stays focused on flying qualities, instrumentation, and safety gates rather than mission equipment. The aim

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