NASA Photo ID: S90-30523           File Name: 10063537.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, fully suited in an 
  extravehicular mobility unit (EMU), maneuvers around 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.  A  SCUBA-equipped diver looks on as McCandless completes
  RMS-related activities.  Though no extravehicular activity (EVA) is planned
  for STS-31, 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           
  HELMETS                                 
  HUBBLE SPACE TELESCOPE                  
  MOCK-UP                                 
  NEUTRAL BUOYANCY SIMULATION             
  SPACE FLIGHT TRAINING                   
  STS-31                                  
  WEIGHTLESS ENVIRONMENT TRAINING         
  

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