Lockheed Martin Completes NGI Second-Stage Motor Burst Test

Lockheed Martin successfully completed a critical burst test of the second-stage motor case for the Next Generation Interceptor (NGI) in Huntsville, Alabama, on August 4, 2026, keeping the missile defense program on schedule for a late 2026 design review.

The test validates the composite structure’s strength-to-weight ratio and its ability to withstand extreme launch environments. According to a press release issued by Lockheed Martin, the milestone advances the NGI program toward its Critical Design Review (CDR) and maintains the target fielding date of 2030.

Validating the NGI motor architecture

During the burst test, engineers filled the motor case with a carbon-fiber reinforced water vessel and inflated it beyond expected launch pressures. The structure successfully withstood the required induced loads before failure, confirming the design parameters.

The successful destruction test provides physical validation of the digital models used to design the second-stage motor case, ensuring the component can survive the aerodynamic and internal pressure stresses of an interceptor launch.

“This successful burst test is a significant milestone on the path to CDR and brings us closer to fielding NGI by 2030,” said Christopher Jewell, Vice President of Lockheed Martin NGI. “It proves our advanced motor architecture can withstand the harsh conditions of flight and still perform with the precision required to help protect the nation.”

Production infrastructure and program timeline

The NGI is a critical component of the Ground-Based Midcourse Defense (GMD) architecture, designed to protect the United States against long-range ballistic missile threats. The U.S. Missile Defense Agency (MDA) selected Lockheed Martin as the prime contractor for the NGI in April 2024, transitioning the program from technology development to product development.

To support the manufacturing phase, Lockheed Martin opened a dedicated NGI assembly facility in Courtland, Alabama, in June 2026. The facility utilizes a digital-centric foundation to accelerate fabrication and validation processes, which the company credits with keeping the testing schedule on track.

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We view the successful burst test as a strong indicator of program stability ahead of the upcoming CDR. Transitioning from digital models to physical destructive Test-Flights often reveals structural vulnerabilities, but clearing this hurdle suggests the digital engineering tools utilized at the Courtland facility are yielding accurate real-world predictions. Meeting the 2030 fielding deadline remains an ambitious target for the MDA, making strict adherence to the 2026 testing schedule critical for Lockheed Martin.

Sources: Lockheed Martin