Performance and weight and balanceQuestion 685 of 934

An item is located forward of the datum. What sign does its arm have?

  1. Minus
  2. Plus
  3. Zero
  4. It has no sign
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Correct answer: Minus

An arm is plus if measured aft of the datum.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 10: Weight and Balance — Terms and Definitions, page 248

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Questions last reviewed: 18 October 2026