AWL GUIDELINES

The following guidelines give information about the correct selection of Aircraft Warning Lights based on elevated structure's characteristics and customer's requests.

According to ICAO Annex 14 and the most recent EASA regulations, a building must be equipped with an Aircraft Warning Lights system if it falls within the parameters defined by the International and European regulations or if the Local Civil Aviation Department, which monitors the flight operations, requires it.

Possible configurations of Aircraft Warning Lights, according to type and location of the structures are many; however there are some basic rules that must be considered:

  • Height factor - the Rules define four height ranges (each admits determinate types of lights and establishes the minimum levels required): up to 45m, from 45m to 105m, from 105m to 150m and above 150m;
  • Extension (quadrangular plan) factor - minimum number of Aircraft Warning Lights on a quadrangular building is one for each corner; then according to its horizontal extension and type of the beacons considered, additional lights may be needed;
  • Extension (circular plan) factor - minimum number of Aircraft Warning Lights on a circular building depend on its diameter: 3 lights up to 6m diameter, 4 lights up to 31m diameter, 6 lights up to 61m diameter, 8 lights for bigger diameters.

The general rule to remember is that the structure must be visible from every approaching angle of the aircraft.


Our team of experts will be glad to provide support to select the best Aircraft Warning Light system for your structure!