![]() ![]() From the landing threshold, the lights are white until the last 3,000’ of the runway a White lights begin to alternate with red for 2,000’, and the last 1,000’ all lights are red. The area defined may not necessarily be the maximum width of the paved runway surface. Runway edge lights are used to outline runway edges during darkness or restricted visibility Intensity Classification: HIRL and MIRL have variable intensities. Instrument runways Turn yellow the last 2,000,’ or half the runway. Frequency planning and radio set up is required in many cases since as many as three frequencies may be involved: Approach, CTAF, and lighting activation frequency. Runway Edge Lights are omni-directional and are located along or just beyond the edges of the area declared for use as the runway as defined by edge markings and are white subject to certain specific exceptions. When approaching an airport with pilot-controlled lighting at night, use the proper procedure to turn the lights on while crossing the final approach fix, and if possible, confirm their activation with ground personnel or another aircraft on the ground. Be sure to check NOTAMS before flight for any changes or restrictions to light availability. Initially leading you from oblivion to the runway is a column of flashing lights extending from the runway center line. This information is also available on instrument approach plates. Be aware that the frequency for light activation is not necessarily the same as the CTAF and is, in fact, a different frequency at many airports. The procedure for turning on the runway lights is described in the airport facility directory, as is the frequency. Runway end lights a pair of four lights on each side of the runway on precision instrument runways, these lights extend along the full width of the runway. Three intensity settings allow the approach to be used under changing weather conditions. (28) AC 150/5345-53, Airport Lighting Equipment Certification Program. (27) AC 150/5345-51, Specification for Discharge-Type Flasher Equipment. Specification for Portable Runway Lights. A little bit of planning is required to be sure you can see the runway lights and land after going visual on the approach. The omnidirectional horizontal beam pattern, bright flashes and a sequential strobing flash pattern that rolls toward the runway threshold helps the pilot identify the runway in use. Runway centerline lights are installed on some precision approach runways to facilitate landing under adverse visibility conditions. Instrument Runway A runway having an existing instrument approach procedure utilizing air. ![]() “A night instrument approach to landing isn’t likely if you can’t find the runway after going visual at a non-towered airport or an airport where the tower is closed. This light, also known as the Runway Threshold Identification Light (or RTIL), is an unidirectional white flashing light that marks the start of a runway. ![]()
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