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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. Instantaneous wave-free ratio - Wikipedia

    en.wikipedia.org/wiki/Instantaneous_wave-free_ratio

    The instantaneous wave-free ratio (iFR, sometimes referred to as the instant wave-free ratio or instant flow reserve) is a diagnostic tool used to assess whether a stenosis is causing a limitation of blood flow in coronary arteries with subsequent ischemia. iFR is performed during cardiac catheterisation (angiography) using invasive coronary pressure wires which are placed in the coronary ...

  4. Instrument rating - Wikipedia

    en.wikipedia.org/wiki/Instrument_rating

    Instrument rating refers to the qualifications that a pilot must have in order to fly under instrument flight rules (IFR). It requires specific training and instruction beyond what is required for a private pilot certificate or commercial pilot certificate, including rules and procedures specific to instrument flying, additional instruction in meteorology, and more intensive training in flight ...

  5. Instrument rating in the United States - Wikipedia

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

    An Instrument Proficiency Check administered by a CFII, DPE or ASI within the last 6 months is another way of complying with the IFR currency requirement. If a pilot is not current looking back 6 months, they may complete the listed requirements in a flight simulator aviation training device or in an aircraft under simulated instrument ...

  6. CRAFT (aviation) - Wikipedia

    en.wikipedia.org/wiki/CRAFT_(aviation)

    The initial altitude is sometimes stated on the charts. If not, it will be given by the air traffic controller. The departure frequency is given to the pilot when ATC hands the aircraft over to the next sector. A typical IFR clearance would be: OOABC, cleared to Ostend via the DENUT 7C departure, climb flight level six zero, squawk four six ...

  7. International Financial Reporting Standards - Wikipedia

    en.wikipedia.org/wiki/International_Financial...

    The Conceptual Framework serves as a tool for the IASB to develop standards. It does not override the requirements of individual IFRSs. Some companies may use the Framework as a reference for selecting their accounting policies in the absence of specific IFRS requirements. [16]

  8. Standard terminal arrival route - Wikipedia

    en.wikipedia.org/wiki/Standard_terminal_arrival...

    In aviation, a standard terminal arrival route (STAR) is a published flight procedure followed by aircraft on an instrument flight rules (IFR) flight plan just before reaching a destination airport. A STAR is an air traffic control (ATC)-coded IFR arrival route established for application to arriving IFR aircraft destined for certain airports.

  9. Visual flight rules - Wikipedia

    en.wikipedia.org/wiki/Visual_flight_rules

    If they are not met, the conditions are considered instrument meteorological conditions (IMC), and a flight may only operate under IFR. IFR operations have specific training requirements and certification required of the pilot, and increased equipment requirements for the aircraft. Additionally, an IFR flight plan must usually be filed in advance.