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Old Aug 2, 2017 | 5:37 pm
  #14  
nmh1204
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Originally Posted by wco81

It aims to address one of the main complaints about the original Concorde, which is the sonic boom, by flying at 55,000 feet instead of 30,000 and also operate at 60 instead of 90 dBs.
Concorde didn't fly at 30,000ft, it cruised at 55,000+
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