PPRuNe Forums - View Single Post - Why don't jets fly higher?
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Old 25th Oct 2000, 22:50
  #41 (permalink)  
alosaurus
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Main reason is the difference in surface area between Concorde/corp jets.Multiply the number of square inches of pressure hull by a one pound incease in max diff it subjects the fuselage to hundreds of Tonnes more pressure on a big jet.