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A Class II weight estimate differs from Class I in that it

  • A.Ignores the wing
  • B.It estimates each group separately
  • C.Uses a single overall fraction
  • D.Requires the aircraft to be built

Answer: B

Wing, fuselage, empennage, undercarriage, propulsion and systems are each estimated from relationships involving their own driving parameters. It is more work but far more informative, since it shows where the weight actually is.

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