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UTC OTIS UTC CLIMATE, CONTROLS & SECURITY PRATT & WHITNEY UTC AEROSPACE SYSTEMS

Power Generation Systems

The Space Launch System hydraulic power and control system is based upon heritage systems from the Space Shuttle. The auxiliary power unit (APU) from Space Shuttle has been modified to use cold fuel to spin a turbine. In turn, the system drives a hydraulic pump and with controls, provides the hydraulic fluid to the thrust vector control actuators for the Core Stage. Space Systems provides the APU and hydraulic components to Boeing for the SLS Core Stage. 

A similar system is used for the baseline solid rocket booster, but is driven with hydrazine through a catalyst bed to provide the turbine power. This system is provided to ATK.

The Turbine Pump Assembly (TPA) on each United Launch Alliance (ULA) Delta IV Common Booster Core (CBC) uses cold fuel turbine system to drive a hydraulic pump. In a similar fashion, the hydraulic fluid is then provided.  We provide a TPA for each Delta IV CBC.

Space Systems continues to also investigate future means of electric power supply for more electric thrust vector control systems