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  2. Precision approach path indicator - Wikipedia

    en.wikipedia.org/wiki/Precision_Approach_Path...

    A precision approach path indicator (PAPI) is a system of lights on the side of an airport runway threshold that provides visual descent guidance information during final approach. It is generally located on the left-hand side of the runway approximately 300 metres (980 ft) beyond the landing threshold of the runway.

  3. Runway - Wikipedia

    en.wikipedia.org/wiki/Runway

    Runway 13R at Palm Springs International Airport An MD-11 at one end of a runway. In aviation, a runway is an elongated, rectangular surface designed for the landing and takeoff of an aircraft. [1] Runways may be a human-made surface (often asphalt, concrete, or a mixture of both) or a natural surface (grass, dirt, gravel, ice, sand or salt).

  4. Runway end identifier light - Wikipedia

    en.wikipedia.org/wiki/Runway_end_identifier_light

    Runway end identifier lights REIL installed near the runway 19 threshold at Teterboro Airport as seen from an approaching aircraft. Runway end identifier lights (REIL [1]) (ICAO identifies these as Runway Threshold Identification Lights) are installed at many airports to provide rapid and positive identification of the approach end of a ...

  5. Engineered materials arrestor system - Wikipedia

    en.wikipedia.org/wiki/Engineered_materials...

    EMAS bed after being run over by landing gear. An engineered materials arrestor system, engineered materials arresting system (EMAS), or arrester bed [1] is a bed of engineered materials built at the end of a runway to reduce the severity of the consequences of an aircraft running off the end of a runway.

  6. Signal square - Wikipedia

    en.wikipedia.org/wiki/Signal_square

    The same documents include the H sign indicating a landing area for helicopters, commonly used on a helipad (but not a circle around the letter H), to be displayed in the Signals Area. [ 5 ] [ 4 ] According to the UK Civil Aviation Authority , these visual aids can be used at aerodromes with a significant amount of general aviation movements.

  7. Runway status lights - Wikipedia

    en.wikipedia.org/wiki/Runway_status_lights

    Runway Status Lights (RWSL) are a visual alerting system installed in some airport taxiways and runways for the purpose of collision-avoidance. When illuminated, red high-intensity LEDs indicate the presence of another vehicle either departing, occupying, or landing on an active runway .

  8. Airfield traffic pattern - Wikipedia

    en.wikipedia.org/wiki/Airfield_traffic_pattern

    (2) requires helicopters to avoid the flow of fixed wing aircraft. [2] Because the active runway is chosen to meet the wind at the nearest angle (with take-offs and landings upwind), the pattern orientation also depends on wind direction. Patterns are typically rectangular in basic shape, and include the runway along one long side of the rectangle.

  9. Taxiway - Wikipedia

    en.wikipedia.org/wiki/Taxiway

    Runway signs – White text on a red background. These signs identify a runway intersection ahead, e.g., runway 12-30 in the photo above. Frequency change signs – Usually a stop sign and an instruction to change to another frequency. These signs are used at airports with different areas of ground control.