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D2 Tower Type

The D2 tower type is over 350′ tall and should be lit by 3 L-865 white medium intensity beacons at 40 flashes per minute.


FAA AC 70/7460-1L, FAA AC 70/7460-1J and FAA AC 70/7460-1H

  • Tower height cannot exceed 700′


FAA AC 70/7460-1K

  • D2 tower heights cannot exceed 500′
  • Tower with heights of more than 500′ but less than 700′ are classified as C2 and are lit with 1 L-865 and 6 L-856 high intensity beacons