TULLAHOMA, Tenn., July 29, 2025. Northrop Grumman Corporation, in collaboration with the US Air Force, completed the first qualification test of a stage-two solid rocket motor for the Sentinel Intercontinental Ballistic Missile at the Air Force Arnold Engineering Development Complex. The test was conducted in a vacuum chamber simulating flight conditions, allowing evaluation of the Thrust Vector Control system, which steers the missile.
Why It Matters:
- Engineers designed Sentinel in a digital model-based environment, which accelerates design, reduces costs, and minimizes the need to “bend metal” for each design enhancement.
- Engineers will compare performance data from the test to predictions from our digital models, validating the motor performs as expected.
- Qualification tests are designed to assure the rocket motor meets the Air Force’s exacting standards for quality and reliability.
Expert Insight:
Ben Davies, Corporate Vice President and President, Defense Systems, Northrop Grumman: “Developing the Sentinel Weapon System quickly is vital for national security. A digital-first approach helps us speed up the process and ensures the missile is mission-ready.”
Go Deeper:
Northrop Grumman and the Air Force have tested all three stages of the Sentinel missile. This test is the first of a series intended to validate digital models and finalize the stage-two rocket motor design. Each test will verify different motor components to reduce risk and refine the design. This test follows earlier tests of both stage-one and development-stage motors, providing critical data for continued progress in missile design, testing and support systems.
The Sentinel Weapon System design maturation, missile testing, command and control mission equipment, communications, security and related support equipment continue to make significant progress.
Northrop Grumman is a leading global aerospace and defense technology company. Our pioneering solutions equip our customers with the capabilities they need to connect and protect the world, and push the boundaries of human exploration across the universe. Driven by a shared purpose to solve our customers’ toughest problems, our employees define possible every day.
