Northrop Grumman’s SMASH!22 Solid Rocket Motor Test Promises Next-Gen Innovations in Aerospace

Northrop Grumman Corporation, a prominent name in the American aerospace and defense sector, recently achieved a significant milestone with the successful testing of its latest solid rocket motor, the Solid Motor Adaptable Scalable Half Time/Cost !22 (SMASH!22). Conducted on December 4, 2025, at the company’s Promontory, Utah facility, the test was a demonstration of innovative technologies aimed at optimizing solid rocket motor manufacturing and performance.

The SMASH!22 motor, measuring approximately 0.5 meters in diameter and just over three meters long, produced thrust exceeding 100,000 newtons (about 22,500 pounds-force) during a full-duration static firing that lasted 26 seconds. While the test did encounter a minor hiccup, with the fire extinguishing system activating after a delay, it had no impact on the motor’s performance.

This test is part of the Solid Motor Annual Technology Demonstrator (SMART) program, which Northrop Grumman operates to explore advanced technologies and techniques in solid motor development. The program is characterized by a willingness to take on increased technical risk, focusing on pioneering methods and materials that break from traditional solid rocket manufacturing processes. Remarkably, the SMASH!22 motor, along with another recent motor known as BAMM 2.0, was developed in just eight months, a stark contrast to the three-year norm typically associated with solid rocket motor projects.

In particular, the SMASH!22 motor is produced using automation and robotics to improve operational efficiency. A new robotic technique for applying the motor’s liner has eliminated the need for manual labor, while the use of 3D printed elastomer components and innovative case welding methods signal a shift towards modern manufacturing practices. The SMASH!22 is not intended to replace existing motors but rather to serve as a testbed for the future of propulsion technologies.

The test of SMASH!22 marks the third consecutive year Northrop Grumman has successfully conducted tests under the SMART program, which commenced in 2023. This initiative aligns closely with customer requirements, ensuring the development of technologies that meet evolving needs in the space and defense sectors.

Looking ahead, Northrop Grumman plans to test the BAMM 2.0 motor in early 2026, which will further build on the advancements made in the SMART program. BAMM 2.0 is expected to demonstrate an output of over 151,200 newtons (34,000 pounds-force) over a 35-second burn time, incorporating a mix of additively manufactured components and designs tailored to contemporary defense demands.

In tandem with these developments, Northrop Grumman is actively expanding its supplier base to strengthen its supply chain. This includes collaboration with international partners, such as Australia’s Titomic Ltd, emphasizing a growing strategic partnership in guided weapons technology.

To support its ambitious initiatives, Northrop Grumman has committed over $1 billion to upgrade its solid rocket motor production facilities as part of its Project 2030 plan. The company is significantly expanding its operations in Utah, adding over half a million square feet of building space to accommodate various manufacturing processes, including facilities for mixing, casting, and case manufacturing.

The future seems bright for Northrop Grumman as it gears up to support both military and commercial demand for solid rocket motors. With ongoing projects like the Sentinel ICBM and existing contracts such as the Castor 30XL motors for Antares 330 series, the company is well-positioned to thrive in an ever-evolving geopolitical landscape. Overall, the successful testing of the SMASH!22 motor underlines Northrop Grumman’s commitment to innovation and strategic growth in the aerospace domain.