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Simplified Aid For EVA Rescue
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== Description == SAFER is fitted around the life support backpack of the space suit (EMU or [[Extravehicular Mobility Unit]]). SAFER in no way interferes with suit mobility. The flight test unit was fitted with a single hand control module rigidly attached to the Display and Control Module (DCM) in front of the suit. The hand controller provided six degrees-of-freedom (DOF) maneuvering via 24 gaseous-nitrogen (GN2) thrusters. Vehicle weight is 85 pounds. The GN2 is stored in four cylindrical tanks, each charged to 3250 psi. Total fuel capacity is 3 pounds which is sufficient to change the vehicle velocity approximately 10 feet/second (ΞV). The unit features very extensive [[self-test]] capability.<ref>{{Cite journal |last=Meade |first=Carl |date=October 1995 |title=First Flight Test Result of the Simplified Aid For EVA Rescue (SAFER) Propulsion Unit |url=https://www.researchgate.net/publication/319601444 |journal=International Space Station}}</ref>
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