NASA Photo ID: S90-30522           File Name: 10063535.jpg
  Film Type: 35mm                    Date Taken: 03/05/90
  Title: STS-31 MS McCandless, in EMU, during JSC WETF underwater simulation
  Description:
  STS-31 Mission Specialist (MS) Bruce McCandless II (left), wearing an 
  extravehicular mobility unit (EMU), maneuvers his way around a mockup of
  the  remote manipulator system (RMS) end effector during an underwater
  simulation  in JSC's Weightless Environment Training Facility (WETF) Bldg
  29 pool.  The  end effector is attached to a grapple fixture on the Hubble
  Space Telescope  (HST) mockup.  As McCandless performs contingency
  extravehicular activity  (EVA) procedures, fellow crewmember MS Kathryn D.
  Sullivan, in EMU, works on  the opposite side of the HST mockup, and
  SCUBA-equipped divers monitor the  activity.  Though no EVA is planned for
  STS-31, the two crewmembers train for  contingencies that would necessitate
  leaving the shirt sleeve environment of  Discovery's, Orbiter Vehicle (OV)
  103's, crew cabin and performing chores  with the HST payload or related
  hardware in the payload bay (PLB).          
  
  Subject terms:
  ASTRONAUT TRAINING                      
  ASTRONAUTS                              
  CREWS                                   
  DIVERS                                  
  END EFFECTORS                           
  EXTRAVEHICULAR MOBILITY UNITS           
  HUBBLE SPACE TELESCOPE                  
  MOCK-UP                                 
  NEUTRAL BUOYANCY SIMULATION             
  PAYLOAD BAY                             
  SPACE FLIGHT TRAINING                   
  SPACE SHUTTLE ORBITERS                  
  STS-31                                  
  WEIGHTLESS ENVIRONMENT TRAINING         
  

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