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Aircraft Weight and Balance Flashcards

7 cards from real AMT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Aircraft Weight and Balance flashcards as text
  1. What is the standard weight used for aviation gasoline (avgas) in weight and balance calculations?

    Answer: 6.0 lbs per gallon

    The FAA standard weight for aviation gasoline (100LL avgas) is 6.0 lbs per gallon for weight and balance purposes.

  2. What is the standard weight used for Jet-A fuel in weight and balance calculations?

    Answer: 6.7 lbs per gallon

    The FAA standard weight for Jet-A turbine fuel is 6.7 lbs per gallon for weight and balance computations.

  3. After an annual inspection, which record must be updated if equipment was added or removed that changes empty weight?

    Answer: Aircraft weight and balance report

    The aircraft weight and balance report must be revised and updated whenever modifications change the aircraft's empty weight or CG.

  4. A helicopter has a lateral CG limit of ±3 inches from centerline. If cargo is loaded on the left side only, the technician should:

    Answer: Verify the lateral CG remains within the ±3 inch limit

    Lateral CG limits are critical on helicopters; the technician must calculate the lateral moment and confirm the CG stays within the ±3 inch limit.

  5. What formula is used to determine how much ballast weight is needed to correct a CG out of limits?

    Answer: Ballast weight = (aircraft weight × CG correction needed) ÷ (ballast arm − old CG)

    The ballast formula is: ballast weight = (aircraft weight × required CG shift) ÷ (ballast station − current CG location).

  6. If an aircraft weight and balance computation shows the CG is within limits at takeoff but will exceed aft limits as fuel burns, the flight:

    Answer: Cannot be made as planned; fuel must be redistributed or flight plan altered

    CG limits must be maintained throughout the entire flight, not just at takeoff; if CG will exceed limits during fuel burn, the flight plan must be adjusted.

  7. An aircraft with a leveling means specified as 'level longitudinally and laterally using leveling screws on the left door sill' must be leveled this way because:

    Answer: The manufacturer's approved weighing procedure must be followed exactly to ensure accurate scale readings

    The manufacturer's specified leveling procedure must be followed exactly to ensure the aircraft is in the correct attitude for accurate weight and moment measurements.