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Total pressure recovery of an inlet is defined as the ratio of

  • A.Mass flow captured to mass flow spilled
  • B.Compressor face Mach number to flight Mach number
  • C.Total pressure at the compressor face to free stream total pressure
  • D.Static pressure rise to dynamic pressure

Answer: C

It is the single figure that expresses how much of the available energy the intake has preserved. A loss of one per cent in recovery typically costs more than one per cent in thrust, which is why intake design receives such attention on high speed aircraft.

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