->  DW> -> What kept it from collapsing, once the fuel was spent? Air? I 
->  DW> doubt that -> it was built that way on your proposed principle. 
 
->  DW> When the fuel was spent, the engines stopped and the vehicle was in 
->  DW> space. There were no forces acting on it, so it did not collapse. 
 
-> How about the empty stages that fell back to earth? 
 
->                 R\%/itt 
  
How about them? Sure, they collapsed, burned out, or whatever. So what? 
  
                         dow 
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