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  2. Precision approach path indicator - Wikipedia

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

    It consists of two units with the inner unit located 10 metres (33 ft) from the runway edge. [1] The PAPI should be located on the left-hand side of the runway at right angles to the runway center line, although can be located on the right-hand side of the runway if required. The red lights are always on the side closest to the runway.

  3. Runway visual range - Wikipedia

    en.wikipedia.org/wiki/Runway_visual_range

    A pilot's view of Lisbon Airport's runway 21 in fog; runway visual range is about 200 m (660 ft). In aviation, the runway visual range (RVR) is the distance over which a pilot of an aircraft on the centreline of the runway can see the runway surface markings delineating the runway or the lights delineating the runway or identifying its centre line.

  4. Visibility - Wikipedia

    en.wikipedia.org/wiki/Visibility

    Because the object is assumed to be perfectly black, it must absorb all of the light incident on it. Thus when x=0 (at the object), F(0) = 0 and C V (0) = 1. Between the object and the observer, F(x) is affected by additional light that is scattered into the observer's line of sight and the absorption of light by gases and particles.

  5. Visual Glide Slope Indicator - Wikipedia

    en.wikipedia.org/wiki/Visual_Glide_Slope_Indicator

    The VGSI, if installed, is listed immediately after each runway and is coded to indicate the type and specific implementation. For example, Chicago Executive Airport (KPWK) located in Wheeling, IL has runway 16. In the A/FD, after runway 16 is listed "PAPI(P4L)" [1] which is a PAPI of four (4) identical light units placed on the left side of ...

  6. Airfield traffic pattern - Wikipedia

    en.wikipedia.org/wiki/Airfield_traffic_pattern

    Upon each landing, depending on the runway distance remaining, aircraft and pilot capabilities, noise abatement procedures in effect, and air traffic control clearance, the pilot will perform either a full stop landing (taxi to the runway beginning for subsequent take-off), a touch-and-go (stabilize in the landing roll, reconfigure the aircraft ...

  7. Approach lighting system - Wikipedia

    en.wikipedia.org/wiki/Approach_lighting_system

    Approach lights at Jyväskylä Airport, Finland The approach lighting system of Bremen Airport Approach lighting at Love Field, Dallas. An approach lighting system (ALS) is a lighting system installed on the approach end of an airport runway and consisting of a series of lightbars, strobe lights, or a combination of the two that extends outward from the runway end. [1]

  8. Runway - Wikipedia

    en.wikipedia.org/wiki/Runway

    A runway numbered 09 points east (90°), runway 18 is south (180°), runway 27 points west (270°) and runway 36 points to the north (360° rather than 0°). [6] When taking off from or landing on runway 09, a plane is heading around 90° (east).

  9. Runway edge lights - Wikipedia

    en.wikipedia.org/wiki/Runway_edge_lights

    The majority of runway edge lights are clear or white, [2] but there are some exceptions to provide additional information to pilots in certain circumstances. When an instrument runway lighting is designed, the last 600 metres (2,000 ft), or one-half of the runway length available (whichever is less), are bi-directional.