Ursa Major has begun construction on a 400-acre site in Weld County, Colorado, dedicated to testing and qualifying large solid rocket motors (SRMs). According to the announcement, the facility will support the design, production, and qualification of SRMs for missile programs and national defense initiatives.

Dan Jablonsky, CEO of Ursa Major, stated that the site represents a major advancement in the company’s ability to deliver scalable and flexible SRMs, enhancing the American-made solid rocket motor industrial base. He emphasized that the facility will ensure warfighters have access to high-quality SRMs to meet evolving mission requirements.

The new site is designed for safe full-scale static firings and future qualification processes, including drop and temperature storage testing. Ursa Major mentioned that it will validate SRMs produced using its Lynx manufacturing process, a software-driven, additive-enabled system capable of supporting motor sizes from 2 to 22 inches in diameter and various thrust profiles without retooling.

According to the announcement, Ursa Major’s SRM program has already achieved multiple milestones, including four successful flight tests and over 450 static fires. These tests demonstrated the repeatability and scale of Ursa Major’s proprietary manufacturing methods across different motor sizes and applications.

Backed by U.S. Navy investment, the company is expanding both production and test infrastructure to deliver SRMs more quickly and cost-effectively than legacy providers. Construction is underway, with testing scheduled to commence in the fourth quarter of 2025.