Marshall Space Flight Center Employee and VIP Tours of Test Stan

More than 700 NASA Marshall Space Flight Center team members, Boeing employees, Team Redstone participants and local officials filled 17 buses Feb. 6 to view the liquid hydrogen tank structural test article installed in Test Stand 4693 at Marshall. The 149-foot liquid hydrogen tank structural test article is the largest piece of structural test hardware for the core stage of NASA’s Space Launch System (SLS). At 221 feet tall, Test Stand 4693 is the largest test stand at Marshall -- as well as one of the newest. During testing, dozens of hydraulic cylinders in the test stand will push and pull on the tank to simulate the stresses and loads it will endure during liftoff and flight for lunar missions.