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A Class III weight estimate is based on

  • A.Group statistical formulae
  • B.The customer's requirements
  • C.Analysis of actual defined parts
  • D.Historical fractions

Answer: C

Correct answer: Analysis of actual defined parts

Fidelity rises through the three classes. Class I uses aircraft-level fractions, Class II uses statistical formulae for each major group, and Class III weighs the design itself - part by part, from the actual geometry and material of what has been drawn. It is the most accurate and the most expensive, and it can only be done once there is a definition to analyse.

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