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  2. Sensory illusions in aviation - Wikipedia

    en.wikipedia.org/wiki/Sensory_illusions_in_aviation

    A black-hole approach illusion can happen during a final approach at night (with no stars or moonlight) over water or unlit terrain to a lighted runway, in which the horizon is not visible. [4] As the name suggests, it involves an approach to landing during the night where there is nothing to see between the aircraft and the intended runway ...

  3. Precision approach path indicator - Wikipedia

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

    The PAPI can be seen to the right (non-standard) side of the runway. The aircraft is slightly below the glideslope. 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.

  4. Penrose diagram - Wikipedia

    en.wikipedia.org/wiki/Penrose_diagram

    Penrose diagram of an infinite Minkowski universe, horizontal axis u, vertical axis v. In theoretical physics, a Penrose diagram (named after mathematical physicist Roger Penrose) is a two-dimensional diagram capturing the causal relations between different points in spacetime through a conformal treatment of infinity.

  5. Threat and error management - Wikipedia

    en.wikipedia.org/wiki/Threat_and_error_management

    Safety change process (SCP), which is part of LOSA, is a formal mechanism that airlines can use to identify active and latent threats to flight operations. [12] It is a guideline that communicates in detail what is an imminent threat to current operations or who is causing the threat.

  6. Position error - Wikipedia

    en.wikipedia.org/wiki/Position_error

    The system error, including position error, ..., may not exceed three percent of the calibrated airspeed or 5 knots (9.3 km/h), whichever is greater, throughout the [operating speed range for the aircraft].

  7. Engineering drawing abbreviations and symbols - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing...

    An order from the engineering department (to be followed by the production department or vendor) overriding/superseding a detail on the drawing, which gets superseded with revised information. Also called by various other names, such as engineering change order (ECO), engineering change notice (ECN), drawing change notice (DCN), and so on.

  8. Intersection (aeronautics) - Wikipedia

    en.wikipedia.org/wiki/Intersection_(aeronautics)

    Terminal Procedure with Approach Intersections. In aviation, an intersection is a virtual navigational fix that helps aircraft maintain their flight plan.It is usually defined as the intersection (in the geometrical sense) of two VOR (VHF Omnidirectional Range) radials.

  9. Penrose process - Wikipedia

    en.wikipedia.org/wiki/Penrose_process

    The Penrose process (also called Penrose mechanism) is theorised by Sir Roger Penrose as a means whereby energy can be extracted from a rotating black hole. [1] [2] [3] The process takes advantage of the ergosphere – a region of spacetime around the black hole dragged by its rotation faster than the speed of light, meaning that from the point of view of an outside observer any matter inside ...