Hancock County, MS
NASA Stennis Space Center
Established in the 1960s, NASA’s Stennis Space Center is the nation’s largest and most prestigious propulsion test center. Initially used to test key components of the Apollo and Shuttle programs, the site has since become a hot bed for a new era of commercial space companies. Relativity occupies the largest footprint of such companies, operating numerous test stands, complexes, and supporting infrastructure. With a permanent team located on-site and planned future development, Relativity continues to invest in the region.
R Complex
We are actively building out a more than 250-acre expansion in the R complex that will support engine and vehicle testing for our Terran R program. A new dual-bay vertical engine test stand enables a high volume of testing, further increasing the pace of iterative development. Current developments include:
New engine test stands
A full-scale second stage stand
A vehicle hangar and ancillary offices
A2 Test Complex
Relativity has signed an enhanced use lease agreement (EULA) on the vertical test stand at the A2 complex. The stand has a historic past, having tested key components for the Apollo, Space Shuttle, and Constellation Programs. The agreement marks the first time a commercial tenant has modernized an underutilized legacy test stand at NASA Stennis, signifying the strength of the public-private partnership between the two entities. With the addition of A2 to their footprint at NASA Stennis, Relativity will be able to:
Uplevel their cadence of first stage testing
Increase the speed of iterative learning cycles
Shorten time to market
E2 Complex
Development, qualification, and acceptance testing of our Aeon R engine components occurs at the E2 Complex. With two test cells rated for horizontally-mounted engines and vertically-mounted vehicle stages or engines, the site enables testing flexibility. Plans are being developed for our turbopump assembly, and thrust chamber assembly (TCA) tests are underway at the adjacent E1 test cell.
Engine testing up to 324,000 lbs of thrust
Ultra-high pressure fluid systems rated for up to 15,000 psig
34-acre site
E4 Complex
Relativity occupies dual-bay test stands in the E4 area, used for Terran 1 stage testing and Aeon 1 engine testing. The agreement with NASA marked Stennis’ first ever Commercial Space Launch Act Agreement, facilitating private development in the industry. So far, the test stands have:
Conducted 24,126 seconds of full engine hot fire testing
Facilitated the launch of Terran 1, the world’s first 3D printed object to reach space
