AERDROME (MOS)

• Aerodrome. A defined area on land or water (including any buildings, installations, and equipment) intended to be used either wholly or in part for the arrival, departure and surface movement of aircraft.
• Aerodrome beacon. An aeronautical beacon used to indicate the location of an aerodrome from the air
• Aerodrome certificate. A certificate issued by the appropriate authority under applicable regulations for the operation of an aerodrome.
• Aerodrome elevation. The elevation of the highest point of the landing area.
• Aerodrome identification sign. A sign placed on an aerodrome to aid in identifying the aerodrome from the air.
• Aerodrome mapping data (AMD). Data collected for the purpose of compiling aerodrome mapping information for aeronautical uses.
• Aerodrome mapping database (AMDB). A collection of aerodrome mapping data organized and arranged as a structured data set.
• Aerodrome reference point. The designated geographical location of an aerodrome.
• Aerodrome reference temperature. The monthly mean of the maximum daily temperature for the hottest month of the year (the hottest month being that which has the highest monthly mean temperature).
• Aerodrome traffic density. (a) Light. Where the number of movements in the mean busy hour is not greater than 15 per runway or typically less than 20 total aerodrome movements per hour. (b) Medium. Where the number of movements in the mean busy hour is of the order of 16 to 25 15 per runway or typically between 20 to 35 total aerodrome movements per hour. (c) Heavy. Where the number of movements in the mean busy hour is of the order of 26 or more per runway or typically more than 35 total aerodrome movements per hour.
• Aerodrome works. Construction or maintenance works carried out at an aerodrome, on or adjacent to the movement area, that may create obstacles or restrict the normal take-off and landing of aircraft.
• Aeronautical beacon. An aeronautical ground light visible at all azimuths, either continuously or intermittently, to designate a particular point on the surface of the earth.
• Aeronautical ground light. Any light specially provided as an aid to air navigation, other than a light displayed on an aircraft.
• Aeronautical study. An investigation of an aeronautical problem to identify possible solutions and select a solution that is acceptable without degrading safety.
• Aeroplane reference field length. The minimum field length required for take off at maximum certificated take-off mass, sea level, standard atmospheric conditions, still air and zero runway slope, as shown in the appropriate aeroplane flight manual prescribed by the certificating authority or equivalent data from the aeroplane manufacturer. Field length means balanced field length for aeroplanes, if applicable, or take-off distance in other cases.
• Aircraft classification number (ACN). A number expressing the relative effect of an aircraft on a pavement for a specified standard sub-grade category.
• Aircraft parking position. A designated area on an apron intended to be used for parking an aircraft, also known as an aircraft stand.
• Aircraft stand. See aircraft parking position definition.
• Airside The movement area of an aerodrome, adjacent terrain and buildings or portions thereof, to which access is controlled.
• Apron. A defined area on a land aerodrome intended to accommodate aircraft for the purposes of loading or unloading passengers, mail or cargo, fueling, parking, or maintenance.
• Apron management service. A service provided to regulate the activities and the movement of aircraft and vehicles on the apron.
• Arresting System. A system designed to decelerate an aeroplane overrunning the runway.
• Autonomous runway incursion warning system (ARIWS). A system which provides autonomous detection of a potential incursion or of the occupancy of an active runway and a direct warning to a flight crew or a vehicle operator.
• Balanced field length. The situation where the distance to accelerate and stop is equal to the take-off distance required when an aeroplane experiences an engine failure at the critical engine failure recognition speed (V1).
• Balked landing. A landing maneuver that is unexpectedly discontinued at any point below the obstacle clearance altitude/height (OCA/H).
• Barrette. Three or more aeronautical ground lights closely spaced in a transverse line so that from a distance they appear as a short bar of light.
• Barrette. Three or more aeronautical ground lights closely spaced in a transverse line so that from a distance they appear as a short bar of light.
• Calendar. Discrete temporal reference system that provides the basis for defining temporal position to a resolution of one day (ISO 19108*).
• • Certified aerodrome. An aerodrome whose operator has been granted an aerodrome certificate.
• Clearway


  A defined rectangular area on the ground or water under the control of an appropriate authority; at the end of the take-off run available on the ground or water under the control of the aerodrome operator, selected or prepared as a suitable area over which an aeroplane may make a portion of its initial climb to a specified height
• Critical aeroplane


  The aeroplane or aeroplanes identified from among the aeroplanes the aerodrome is intended to serve as having the most demanding operational requirements with respect to the determination of movement area dimensions, pavement bearing strength and other physical characteristics in the design of aerodromes
• Critical obstacle


  The obstacle within the take-off climb area and/or the approach area, which subtends the greatest vertical angle when measured from the inner edge of the take-off climb surface and/or the approach surface
• Cross-wind component


  The surface wind component at right angles to the runway centerline
• Cyclic redundancy check (CRC)


  A mathematical algorithm applied to the digital expression of data that provides a level of assurance against loss or alteration of data
• Data accuracy


  A degree of conformance between the estimated or measured value and the true value
• Data quality


  A degree or level of confidence that the data provided meet the requirements of the data user in terms of accuracy, resolution and integrity (or equivalent assurance level), traceability, timeliness, completeness and format
• Data integrity (assurance level)


  A degree of assurance that an aeronautical data and its value has not been lost or altered since the origination or authorized amendment
• Datum


  Any quantity or set of quantities that may serve as a reference or basis for the calculation of other quantities (ISO 19104)