Northrop, U.S. Air Force Test New Missile Silo Design for Sentinel Program (NOC:NYSE)

Northrop, U.S. Air Force test new missile silo design for Sentinel program (NOC:NYSE)

Northrop Grumman & U.S. Air Force test Sentinel ICBM modular silo prototype launch tube to cut costs and speed deployment.

Sentinel Program Advances With Silo Prototype

MARCH 30, 2026 – The LGM-35A Sentinel intercontinental ballistic missile program is rapidly moving from digital design to tangible reality, marked by the recent groundbreaking for a full-scale launch silo prototype in Promontory, Utah. This milestone marks a key step in modernizing the land-based leg of the nation’s nuclear triad. Developed in partnership with prime contractor Northrop Grumman, the silo prototype will validate a modular, repeata…

Construction of Sentinel ICBM silo prototype begins in Utah

Construction has commenced on a full-scale prototype launch silo for the LGM-35A Sentinel intercontinental ballistic missile in Utah.

Prototype, modular silo for Sentinel to aid construction ‘at scale’

(Page 1) Testing of Northrop Grumman's and Bechtel's prototype missile silo for the Sentinel should demonstrate a modular design the service and industry can