Relativity to expand rocket engine test facility at Stennis

Relativity Space, the first company to 3D print rockets and build the largest metal 3D printers in the world, today detailed its plans to operate one of the largest rocket engine test facilities in the United States. Through an agreement with NASA, Relativity is significantly expanding its facilities and infrastructure at NASA’s historic Stennis Space Center in Hancock County, Mississippi. The new facilities will support testing of Relativity’s entirely 3D printed Aeon R engines for its fully reusable 3D printed rocket, Terran R.

Relativity will utilize over 150 additional acres within the Stennis Test Complex, with testing infrastructure for its Aeon R engines being built from the ground up on previously unutilized land north of the A and E Test Complexes. Relativity has begun ground-clearing work for several new engine test stands, a full-scale second-stage stand, office buildings, and a vehicle hangar. The company is already underway testing Aeon R components across Relativity’s E2 test complex, with plans to build the first Aeon R engine and turbopump assembly and begin thrust chamber assembly tests for its Aeon R engines in the coming months at a leased E1 test cell. Full Aeon R engine tests are expected to occur in late 2023 at Relativity’s newly announced facility expansions.

We’re looking forward to writing some new history at Stennis through an incredibly large new expansion of development and test capabilities. We’re honored to partner with NASA and are grateful for their support. We look forward to growing our Stennis-based team, who will be pivotal in our success of meeting many more first-ever milestones as we scale our Terran R program Relativity Space Cofounder and CEO, Tim Ellis.

Relativity currently occupies several operational facilities at Stennis, which include four exclusive-use test stands in the E4 area used for Terran 1 stage testing and Aeon 1 engine testing, two exclusive-use stands in the E2 area used for Aeon 1 engine and Aeon R component tests, and one cell on the E1 test stand available through a Reimbursable Space Act Agreement for Aeon R engine tests. Additionally, Relativity has expanded into several buildings that house its rapidly growing team and test control operations. These facilities have enabled more than 2,000 engine tests, multiple successful mission duty cycles, and a fully-integrated stage testing of a 3D printed orbital flight article – which is not only a first for Relativity but for the entire aerospace manufacturing industry.

“The access to infrastructure in Mississippi is unparalleled. I look forward to working with NASA as the historic Stennis Space Center continues to evolve to support commercial space test programs and to attract and hire top talent as we build the future of aerospace manufacturing. We know the history of excellence at Stennis and take great pride in being able to repurpose existing infrastructure that has withstood the test of time. But we will also build brand new test stands in a place so central and vital to American aerospace innovation,” explained  Relativity Space Vice President of Test and Launch, Don Kaderbek.

Relativity’s partnership with NASA advances innovation, economic development, and job growth in the Gulf Coast, while also progressing the company’s leadership in American aerospace development. Relativity will continue to invest in regional workforce development programs, university and education outreach, and community engagement initiatives.

“We welcome the growth of this valued partnership with Relativity Space,” Stennis Space Center Director Dr. Rick Gilbrech said. “NASA is committed to working with commercial companies to help them achieve their space goals, and Stennis is a proven leader in enabling such partnerships. Since its arrival in the spring of 2018, Relativity Space has continued to grow as a respected member of the Stennis federal city. We look forward to their continued development as an aerospace manufacturing and launch company,” stated Stennis Space Center Director, Dr. Rick Gilbrech.

“This expansion is proof that Mississippi’s future as an aerospace hub is bright. I congratulate Relativity Space on its continued growth and its effort to bring quality jobs to our state. American leadership in space starts in Mississippi, and I expect many great things to come,” said U.S. Senator, Roger Wicker (R-Miss.)

“Mississippi’s Stennis Space Center precedes its reputation for excellence in rocket engine testing, and Relativity’s growing presence will only further that reputation. I look forward to seeing what new aerospace innovations are brought about from this exciting expansion and partnership, as well as what new talent it will attract,” commented U.S. Senator, Cindy Hyde-Smith (R-Miss.)