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  2. List of aircraft type designators - Wikipedia

    en.wikipedia.org/wiki/List_of_aircraft_type...

    Flag of the ICAO. An aircraft type designator is a two-, three- or four-character alphanumeric code designating every aircraft type (and some sub-types) that may appear in flight planning. These codes are defined by both the International Civil Aviation Organization (ICAO) and the International Air Transport Association (IATA).

  3. ICAO airport code - Wikipedia

    en.wikipedia.org/wiki/ICAO_airport_code

    The ICAO airport code or location indicator is a four-letter code designating aerodromes around the world. These codes, as defined by the International Civil Aviation Organization and published quarterly in ICAO Document 7910: Location Indicators, are used by air traffic control and airline operations such as flight planning.

  4. ELPAC Test - Wikipedia

    en.wikipedia.org/wiki/ELPAC_Test

    ELPAC tests English language proficiency at ICAO level 4 (operational) and level 5 (extended). [2] Both standard ICAO phraseology and plain language are included in the test. Plain language proficiency is an essential component of radiotelephony communications, as it is not possible to develop standard phraseologies to cover every conceivable ...

  5. Airline codes - Wikipedia

    en.wikipedia.org/wiki/Airline_codes

    The ICAO airline designator is a code assigned by the International Civil Aviation Organization (ICAO) to aircraft operating agencies, aeronautical authorities, and services related to international aviation, each of which is allocated both a three-letter designator and a telephony designator. These codes are unique by airline, unlike the IATA ...

  6. Aviation transponder interrogation modes - Wikipedia

    en.wikipedia.org/wiki/Aviation_transponder...

    [5] [6] The ICAO 24-bit address can be represented in three digital formats: hexadecimal, octal, and binary. These addresses are used to provide a unique identity normally allocated to an individual aircraft or registration. As an example, following is the ICAO 24-bit address assigned to the Shuttle Carrier Aircraft with the registration N905NA ...

  7. List of airports by ICAO code: A - Wikipedia

    en.wikipedia.org/wiki/List_of_airports_by_ICAO...

    "ICAO Location Indicators by State" (PDF). International Civil Aviation Organization. 17 September 2010. Archived from the original on 9 March 2013. "United Nations Code for Trade and Transport Locations". UN/LOCODE 2011-2. UNECE. 28 February 2012. - includes IATA codes; Aviation Safety Network - IATA and ICAO airport codes

  8. Type certificate - Wikipedia

    en.wikipedia.org/wiki/Type_certificate

    A type certificate (TC) is issued to signify the airworthiness of the approved design or "type" of an aircraft to be manufactured. The TC is issued by a regulatory authority, and once issued, the design cannot be changed unless at least part of the process for certification is repeated to cover the changes.

  9. Machine-readable passport - Wikipedia

    en.wikipedia.org/wiki/Machine-readable_passport

    The ICAO document 9303 part 3 describes specifications common to all Machine Readable Travel Documents. The dimensions of the effective reading zone (ERZ) is standardized at 17.0 mm (0.67 in) in height with a margin of 3 mm at the document edges and 3.2 mm at the edge against the visual readable part.