initial approach segment
- The 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 (ICAO). In the initial approach, the aircraft has departed the en route structure and is maneuvering to enter the intermediate approach segment. The aircraft speed and configuration will depend on the distance from the aerodrome and the descent required. The initial approach segment provides at least 1000 ft (300 m) of obstacle clearance in the primary area. Normally, track guidance is provided along the initial approach segment to the intermediate fix, with a maximum angle of interception of 90° for a precision approach and 120° for a nonprecision approach. Where no track guidance is provided, the alternative is to have a dead-reckoning segment from a fix to the localizer. Where no suitable initial approach fix or intermediate fix is available, a reversal procedure, racetrack, or holding procedure is required to be flown. See initial approach (i).
Aviation dictionary. 2014.
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initial approach fix — The fix depicted on an instrument approach procedure chart that identifies the beginning of the initial approach segment. See initial approach (i) … Aviation dictionary
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dead-reckoning segment — A segment of an instrument approach procedure where no track guidance is available between the initial approach segment and the intermediate fix. Where an operational advantage can be obtained, an ILS (instrument landing system) procedure may… … Aviation dictionary
intermediate approach — That part of an instrument approach procedure in which aircraft configuration, speed, and positioning adjustments are made. It blends the initial approach segment into the final approach segment. It begins at the intermediate fix or point and… … Military dictionary
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