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  2. 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 ...

  3. Integral fast reactor - Wikipedia

    en.wikipedia.org/wiki/Integral_fast_reactor

    The IFR ranked #1 in their study which was released April 9, 2002. [11] At present, there are no integral fast reactors in commercial operation. However, the BN-800 reactor, a very similar fast reactor operated as a burner of plutonium stockpiles, became commercially operational in 2014. [citation needed]

  4. Instrument rating in the United States - Wikipedia

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

    Hold a current FAA Medical Certificate, unless the Practical Examination is administered, in its entirety, in an FAA-certified Level D Flight Training Device. Receive and log ground training from an authorized instructor (i.e. ground school course) or complete a home-study course using an instrument textbook and/or videos.

  5. Instrument flight rules - Wikipedia

    en.wikipedia.org/wiki/Instrument_flight_rules

    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 conditions in which flight by outside visual reference is not safe. IFR flight depends upon flying by reference to instruments in the flight deck, and navigation is accomplished by ...

  6. Instrument approach - Wikipedia

    en.wikipedia.org/wiki/Instrument_approach

    An "approach plate" depicting an instrument approach procedure for an ILS approach to Tacoma Narrows Airport in the United StatesIn aviation, an instrument approach or instrument approach procedure (IAP) is a series of predetermined maneuvers for the orderly transfer of an aircraft operating under instrument flight rules from the beginning of the initial approach to a landing, or to a point ...

  7. Standard instrument departure - Wikipedia

    en.wikipedia.org/wiki/Standard_Instrument_Departure

    Among them, the ANDIK2G Standard Instrument Departure [4] for reaching the ANDIK waypoint northeast of Amsterdam read as follows: [note 1] Lateral route: Track 222° MAG. At 500 ft AMSL turn left (turn MAX 220 KT IAS) to track 093° MAG. At PAM 223 turn left to intercept PAM 207 inbound PAM VOR to intercept PAM 016 to ANDIK (25.2 PAM).

  8. Airport/Facility Directory - Wikipedia

    en.wikipedia.org/wiki/Airport/Facility_Directory

    The airport's FAA location identifier is FCY. It is 4 nautical miles (7.4 km) south of the city, its time zone is UTC-6 (UTC−5 in summer), and the geographical coordinates of its Airport Reference Point (ARP) are . It can be found on the Memphis VFR Sectional chart, and the low-level en route chart 14F.

  9. Visual flight rules - Wikipedia

    en.wikipedia.org/wiki/Visual_flight_rules

    The pilot must be able to operate the aircraft with visual reference to the ground, and by visually avoiding obstructions and other aircraft. [1] If the weather is less than VMC, pilots are required to use instrument flight rules, and operation of the aircraft will be primarily through referencing the instruments rather