First Tail Service Mast Umbilical Arrives for Testing at Kennedy Space Center

The first Tail Service Mast Umbilical arrives for testing at Kennedy Space Center.The first of two Tail Service Mast Umbilicals (TSMUs) for NASA’s Space Launch System arrived at Kennedy Space Center in Florida from Precision Fabrication and Cleaning in Cocoa. The TSMU was moved to the Launch Equipment Test Facility, where it will undergo testing to ensure it functions properly.

Both TSMUs will connect from the zero-level deck on the mobile launcher to the SLS rocket core stage aft section. The 33-feet-tall umbilicals will provide liquid oxygen and liquid hydrogen fluid lines and electrical cable connections to the SLS core stage engine section to support propellant handling during prelaunch operations. Before launch, both TSMUs will tilt back to ensure a safe and reliable disconnect and retract of all umbilical hardware away from the rocket during liftoff.

Kennedy’s Engineering Directorate, along with the Ground Systems Development and Operations Program, are supporting testing of all of the umbilicals that will attach from the tower on the mobile launcher to the SLS rocket and Orion spacecraft for Exploration Mission 1 and deep-space missions, including the journey to Mars.

Photo credit: NASA/Kim Shiflett