When the plane takes off or falls at night, I believe that careful passengers should notice the lights of various colors on the apron. In fact, this is only part of the ground lighting equipment of the airport. The ground lighting equipment of the airport is usually divided into obstacle lights, airport identification lights, runway lights, approach lights, sliding lights, taxi lights and so on. These lighting devices are used to transmit light information to pilots at night or on fog, for take-off, air position and landing to ensure flight safety.
Airport identification light
[Airport identification light] Located on the airport lighthouse. It is the first thing a pilot must find before landing. It is a very bright flashing illuminator. The lights at the civil airport are white-green-white-green, flashing 12 times per minute. If the airport is close to the water, change the green to yellow.
Obstacle light
[obstacle light] A red obstacle light that indicates danger and is not allowed to pass. It is usually installed at the commanding heights of the flight area, such as the top of the mountain, the lighthouse, the chimney top, and the roof of the high-rise building. Obstacle with a height of less than 50 meters, only a red light on the top, and a red light above 50 meters, to display a red light to indicate its three-dimensional height. The elevated bridge near the airport also has a red light on a series of commanding heights, indicating the span of the bridge.
Runway lighting
[Runway Light] It consists of runway identification light, runway entrance light, grounding light, runway end light, runway center light, and runway boundary light. The pilot must see the runway very early before entering the runway, so he has plenty of time to get ready to go.
The runway identification light is a light fixture with a high brightness and a high frequency of flickering on the ground at both ends of the runway. The runway entrance light is green at the end of the runway, perpendicular to the centerline of the runway. The corresponding runway end light is red. The grounding light extends 750 meters from the runway end to the runway, white light, embedded in the ground, alerting the pilot to the key areas where the landing is grounded. The aircraft should be grounded in this area. The runway centerline light is a white light along the centerline of the runway. White runway border lights are placed on the sides of the runway to inform the pilot of the width of the runway.
Taxiway light
[Skiing street lights] Similar to street lights, installed on both sides of the taxiway, the spacing is less than 60 meters, the taxiway side lights are blue, and the center line lights are green. There are blue lights at the entrance and exit to the runway indicating where the pilot enters and exits the taxiway.
Sliding light
[Slide Light] Indicates whether the pilot's slip angle is correct, helps the pilot to check and correct the entry slope of the aircraft, and guides the aircraft to maintain a normal downward trajectory during the approach. The downlight system consists of a number of luminaires that emit red and white colors in a vertical direction with well-defined beams. When the pilot's slip angle is appropriate, he sees a white close-up light and a red long-distance light. When his slip angle is too large, the lights seen are white, and the slip angle is too small to see that the downlights are all red.
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