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Which best explains why re-entry capsules are blunt rather than pointed?

  • A.A blunt shape produces less wave drag than a pointed one
  • B.A blunt shape keeps the bow shock attached
  • C.A blunt shape avoids forming any shock at all
  • D.A detached bow shock keeps the hottest gas away from the surface

Answer: D

The design trade is reversed at re-entry: drag is wanted, not avoided, and the real problem is heat. A detached bow shock stands off from the body and dumps most of the energy into the gas between shock and surface rather than into the structure, so bluntness is a deliberate thermal-protection choice.

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