Airport operationsQuestion 190 of 934

How do military airport beacons differ from civil airport beacons?

  1. Two quick white flashes between green flashes
  2. Steady red lights, with no flashing at all
  3. Alternating yellow and green flashes, all night
  4. One long white flash, then a long dark period
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Correct answer: Two quick white flashes between green flashes

Military beacons flash white and green, with dual-peaked (two quick) white flashes between the green flashes.

Source: Aeronautical Information Manual (FAA, Basic with Change 3, 9 July 2026), AIM 2-1-9 Airport/Heliport Beacons, page 133

Practice airport operations

Questions last reviewed: 18 October 2026