Analysis of the LED approach and lighting system for airport and runway

Introduction: civil airport lighting equipment are visual aids. Although many aircraft are equipped with a variety of advanced radio navigation equipment and instrument landing system, but in the final stage of the aircraft into the final stage of the lights, these lights are still indispensable. At present, the airport navigation light system is generally divided into three types: approaching, landing, taxiing.

Approach lighting system

1, into the middle line lights:

A fixed beacon mounted on the runway centerline, its color is variable white. 1, 2, 3 kinds of precision approach lighting, extending to the runway entrance not less than 900 meters, lamp interval of 30 meters, if it is a simple runway approach lighting is extended to the runway entrance not less than 420 meters, 60 meters vertical interval lamps.

2, in the nearly horizontal light:

The runway entrance 300 meters horizontally arranged lamp (2, 3 precision approach runway runway in the entrance 150 meters and 300 meters respectively arranged in a row), light color is variable white. The horizontal and vertical light and the runway centerline is divided into linear light group 18 meters to 30 meters, each side of the lamp from the inside, away from the runway centerline to extend the line of 4.5 meters, the establishment of 7 lights out. The horizontal interval of the lamp is 1.5 meters.

3, in line lamp:

2, 3 kinds of precision approach runway is generally installed line lamp, light color is red. From the runway entrance extends to 270 meters, the distance between the lights is 30 meters.

4, visual approach slope indicator light:

The indicator lamp is composed of a plurality of pairs of lamps, and is generally divided into three types: a cylinder type, a row type or a T type. The number of different types of lights is also different, the location of the installation is also different. Some are symmetrically arranged on both sides of the runway, most of which are arranged on the left side of the runway. According to the different models can be reduced, runway entrance is also different, generally 300 meters to 400 meters.

5, in the near light:

In the runway centerline extension line 300 meters from the runway entrance to the place of 900 meters near the flash mark. In light color is white flash, but the runway in the low elevation part be obscured, the pilots in the take-off to near light direction, only to see the lights on the ground before. These beacons flash order one by one from the front to the back, each lamp flash frequency is 1 times / sec.