| information service |
An ATS consisting of the following: (a) aircraft movement information service (AMIS) alerting service; and (c) flight information service |
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| initial |
A point 3 to 5 mi. prior to the threshold on the upwind leg, and usually 500 ft above the normal aerodrome traffic circuit, where military aircraft join the aerodrome traffic circuit to conduct an overhead break. |
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| initial approach |
That part of an instrument approach procedure (IAP) between the initial approach fix (IAF) or waypoint and the intermediate approach fix (IF) or waypoint during which the aircraft departs the en route phase of flight and manoeuvres to enter the intermediate segment |
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| initial approach |
That segment of an instrument approach procedure between the initial approach fix and the intermediate approach fix or, where applicable, the final approach fix or point |
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| initial approach segment |
That part of an instrument approach procedure (IAP) between the initial approach fix (IAF) or waypoint and the intermediate approach fix (IF) or waypoint during which the aircraft departs the en route phase of flight and manoeuvres to enter the intermediate segment |
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| initial approach segment |
That segment of an instrument approach procedure between the initial approach fix and the intermediate approach fix or, where applicable, the final approach fix or point |
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| initial approach waypoint |
The waypoint of an instrument approach procedure (IAP) at which the aircraft leaves the en route phase of operations to commence the approach |
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| initial contact |
The initial voice contact between a facility and an aircraft, using the identification of the unit being called and the unit initiating the call |
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| initial point |
On the H-hour control line, the point at which the faker route portion of the exercise begins |
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| initial trajectory information sharing |
initial TIS |
MichaelBurov |
| inland navigation fix |
A fix on a North American route (NAR) at which the common route or the non-common route begins or ends |
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| inner marker |
A marker beacon used with an instrument landing system (ILS) precision approach located between the middle marker and the end of the ILS runway, transmitting a radiation pattern keyed at six dots per second and indicating to the pilot, both aurally and visually, that he/she is at the designated decision height (DH) normally 100 ft above the touchdown zone elevation, on the ILS CAT II approach. It also marks progress during a CAT III approach. |
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| inner marker beacon |
A marker beacon used with an instrument landing system (ILS) precision approach located between the middle marker and the end of the ILS runway, transmitting a radiation pattern keyed at six dots per second and indicating to the pilot, both aurally and visually, that he/she is at the designated decision height (DH) normally 100 ft above the touchdown zone elevation, on the ILS CAT II approach. It also marks progress during a CAT III approach. |
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| instrument approach |
A series of predetermined manoeuvres by reference to flight instruments with specified protection from obstacles from the initial approach fix, or where applicable, from the beginning of a defined arrival route to a point from which a landing can be completed and thereafter, if a landing is not completed, to a position at which holding or en route obstacle clearance criteria apply |
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| instrument approach chart |
An aeronautical chart that depicts the aeronautical data required to execute an instrument approach procedure (IAP) to an airport. These charts depict the procedures, including all related data, and the airport diagram. Each procedure is designated for use with a specific type of electronic navigation system, including non-directional beacon (NDB) tactical air navigation aid (TACAN) VHF omnidirectional range (VOR) instrument landing system (ILS) landing system (MLS) and area navigation (RNAV) These charts are identified by the type of NAVAID providing final approach guidance. |
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| instrument approach procedure |
A series of predetermined manoeuvres by reference to flight instruments with specified protection from obstacles from the initial approach fix, or where applicable, from the beginning of a defined arrival route to a point from which a landing can be completed and thereafter, if a landing is not completed, to a position at which holding or en route obstacle clearance criteria apply |
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| instrument approach waypoints |
Geographic positions, given in degrees of latitude and longitude, used in defining instrument approach procedures (IAP) Waypoints may be coded in aircraft navigation data bases and depicted on instrument approach charts as either fly-by waypoints (turn anticipation permitted) or fly-over waypoints (turn anticipation not permitted) Waypoints that define the missed approach point (MAP) and the missed approach holding waypoint (MAHWP) shall be coded as fly-over waypoints. over waypoint, initial approach waypoint (IAWP) intermediate approach waypoint (IWP) missed approach holding waypoint (MAHWP) missed approach turning waypoint (MATWP) missed approach waypoint (MAWP) and downwind termination waypoint |
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| instrument flight conditions |
Restricted meteorological conditions in which control of an aircraft in flight (other than a balloon) is required to be maintained solely by reference to aircraft flight instruments |
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| instrument flight rules |
A set of rules governing the conduct of flight under instrument meteorological conditions |
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| instrument flight rules/visual flight rules |
IFR/VFR flight rules |
MichaelBurov |
