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  2. Instrument flight rules - Wikipedia

    en.wikipedia.org/wiki/Instrument_flight_rules

    In aviation, instrument flight rules (IFR) is one of two sets of regulations governing all aspects of civil aviation aircraft operations; the other is visual flight rules (VFR). The U.S. Federal Aviation Administration 's (FAA) Instrument Flying Handbook defines IFR as: "Rules and regulations established by the FAA to govern flight under ...

  3. Extraordinary assumptions and hypothetical conditions

    en.wikipedia.org/wiki/Extraordinary_assumptions...

    The distinction between extraordinary assumptions and hypothetical conditions can be a matter of law or professional standards in the field of real estate appraisal in the United States where the distinction is not only codified in USPAP, but enforced by various state real estate appraiser commissions or professional boards. However, the ...

  4. Instrument rating in the United States - Wikipedia

    en.wikipedia.org/wiki/Instrument_Rating_in_the...

    Under FAR 61.57, to be eligible to fly in Instrument Meteorological Conditions (IMC) an IFR-rated pilot must accomplish and log at least the following IFR procedures under actual or simulated IMC every 6 months: 6 instrument approaches. Holding procedures. Intercepting and tracking courses through the use of navigation systems.

  5. List of transponder codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Transponder_Codes

    Instrument Flight Rules (IFR) flight below 18,000 ft ASL when no other code has been assigned. [7] ICAO: Non-discrete mode A code reserved use in mode S radar/ADS-B environment where the aircraft identification will be used to correlate the flight plan instead of the mode A code. [1] US: Used exclusively by ADS-B aircraft to inhibit mode 3A ...

  6. Property condition assessment - Wikipedia

    en.wikipedia.org/wiki/Property_condition_assessment

    Property condition assessments (PCAs) (also known as the property condition report, or PCR) are due diligence projects associated with commercial real estate.Commercial property and building inspections are important for clients seeking to know the condition of a property or real estate they may be purchasing, leasing, financing or simply maintaining.

  7. View-limiting device - Wikipedia

    en.wikipedia.org/wiki/View-limiting_device

    In aviation training, a view-limiting device simulates instrument meteorological conditions (IMC) by restricting a pilot's field of view only to the flight instruments.They are worn by pilots who are working toward an instrument rating, which allows a pilot to fly under instrument flight rules in conditions that do not permit visual flight.

  8. Instrument meteorological conditions - Wikipedia

    en.wikipedia.org/wiki/Instrument_meteorological...

    A pilot's view of the runway just before landing in thick fog at night. In aviation, instrument meteorological conditions (IMC) are weather conditions that require pilots to fly primarily by reference to flight instruments, and therefore under instrument flight rules (IFR), as opposed to flying by outside visual references under visual flight rules (VFR).

  9. En-route chart - Wikipedia

    en.wikipedia.org/wiki/En-route_chart

    An en-route (also known as en route [1] or enroute [2]) chart provides detailed information useful for instrument flight, including information on radionavigation aids (navaids) such as VORs and NDBs, navigational fixes (waypoints and intersections), standard airways, airport locations, minimum altitudes, and so on.