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Orbiter

   Upgrades:   
 Increased risk of puncture of an Orbiter radiator  
 Increased risk of a catastrophic puncture of an Orbiter wing  
  Shuttle cockpit upgrades 
 Obsolete parts of the Orbiter data recording device  
 Hardware, hazardous materials, cost, and the 2400 hour or less life of existent alkaline fuel cell powerplants issues  
 Obsolescence of the Orbiter electronic units, the operations recorder and the mass memory unit 
 Orbiter Maneuvering System and Reaction Control System uses bi-propellants that are costly, corrosive and hazardous 
 IAuxiliary Power Unit uses hydrazine fuel that is costly, corrosive, and hazardous 


Curator: Kim Dismukes | Responsible NASA Official: John Ira Petty | Updated: 04/07/2002
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