![]() DISPLACED THRESHOLD LIGHTSĪ displace threshold or DTHR is a runway threshold located in a different place than a runway’s actual beginning or end. Ask us about “ runway threshold identification lights“. The ICAO regulations recommend using runway end identifier light mainly at non-instrument runways and in the case of a displaced threshold. Their light is omnidirectional or in the direction of a runway. These are two lights that give out synchronic flashes the intensity is from 60 to 120 flashes per minute. They are installed about 10 meters away from edge lights. Runway End Identifier Lights ( REIL) that are put on both sides of a runway constitute an additional help for a pilot. Thanks to the light, it is easier for a pilot to identify both the beginning and end of a runway – especially if it is hard to distinguish a runway from the background, e.g. These lights are installed in the same binding threshold lights are put in. In turn, they are red in an area an aircraft should finish landing operations. Runway End Lights are green in an area an aircraft starts landing. These lights are green and uni-directional. As for precision approach category I and II runways, threshold lights are installed at 3-meter intervals. When it comes to non-instrument runways and non-precision approach category I runways, the number of threshold lights is dependent on their even layout in-between edge lights. They are installed no more than 3 meters behind the end of a runway, in the threshold line. Threshold lights are installed symmetrically on both sides of a runway centerline. The exceptions are non-instrument runways and non-precision approach category I runways (which will be discussed below), and wing bar lights. Threshold lighting in airport are to be found at the same place runway edge lights are placed. The color, intensity and layout of the lights are strictly determined by the regulation of the ICAO (the International Civil Aviation Organization), Annex 14. They allow a pilot to identify the beginning and end of a runway. Runway threshold lights and runway end lights – apart from runway edge lights – are the most important lights an airport is equipped with. Frangible mounting is used to fix SP-401 to concrete or asphalt surface. External switch and battery level indicator is available. Back-up threshold lights (in case of primary system failure)Įncoded wireless control and monitoring of SP-401 threshold light is using radio transceiver and sensitive antenna.Primary/temporary displaced runway threshold.Separately installed 20W solar panel supported by maximum power point tracking ensures high-speed charging. We use standard batteries available everywhere. ![]() ![]() Runway threshold lights are powered by in-built deep-cycle batteries providing up to 60 hrs of operations. We use high quality LED with lifespan 50.000 hrs. Special LED optics generates correct light output in terms of intensity and chromaticity. SP-401 runway threshold lights (runway end lights) are ICAO compliant intelligent aviation lights powered by solar energy. SP-401 THRESHOLD LIGHTS / RUNWAY END LIGHTS ![]()
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