Intermediate Approach Segment Intermediate approach segment is that segment between the intermediate fix or point and the final approach fix.
Minimum obstacle clearance altitude (MOCA) MOCA also assures acceptable navigational signal coverage within 22 NM of a VOR.
Minimum sector altitude Minimum Sector Altitude is centered on the navigation facility upon which the procedure is predicated.
Missed approach point Missed approach point based on acquiring the required visual reference.
Missed approach procedure Missed approach procedure is conducted when the approach cannot be completed to a landing.
Movement Area Movement area also includes areas used by helicopters in taxiing. It does not include loading ramps or parking areas.
Obstacle Obstacles may include terrain and objects of natural growth.
Obstacle clearance altitude (OCA) or Obstacle clearance height (OCH) Decision Altitude and Decision Height used vice Obstacle Clearance Altitude and Obstacle Clearance Height.
Obstacle free zone Obstacle Free Zone also includes airspace above runway surface.
Precision approach procedure MLS also included as a Precision approach procedure.
Procedure turn Procedure turn is used only on intermediate approach segment or final approach course.
Prohibited area Permission of the using agency is required before using Prohibited airspace.
Terminal arrival altitude (TAA) Terminal Arrival Areas defined by the extension of the IAF legs and the intermediate segment course.
Touchdown zone Touchdown zone is the first 3000 feet of the runway beginning at the threshold.
Track Track is the actual flight path of the aircraft over the surface of the earth.
Vectoring Vectoring based on use of radar.
Visual approach procedure Visual approach procedure is conducted on an IFR flight plan which authorizes the pilot to proceed visually and clear of clouds to the airport.
Chapter 1.2 Applicability
1.2.2 Charts vary in their conformance to ICAO Standards.
1.2.2.1 Charts vary in their conformance to ICAO Recommended Practices.
Chapter 2 General Specifications
2.1 The titles of charts produced by the U.S. are not those provided for in Annex 4.
2.1.7 Charts are True North oriented except as indicated.
2.1.8 Sheet size of charts varies dependent on chart type.
2.2.1 The marginal note layouts, in some cases, differ from those set forth in Appendices 1, 5, and 6.
2.3.1 Marginal note layouts vary by chart type
2.4 Symbols do not universally conform to Appendix 2.
2.4.1 Visibility distances are expressed in statute miles and fractions thereof.
2.4.4 Conversion scale (meters/feet) is not shown on Radio Navigation Charts.
2.5.4 Linear dimensions are expressed in feet.
2.5.7 Conversion scales are not universally used.
2.6.2 Some charts have no linear scale.
2.9.2 Abbreviations used are from FAA Order 7340.1, not ICAO Doc 8400.
2.11 Color schemes differ by chart series.
2.12.2 Hypsometric tints differ by chart series.
2.12.3.1 Unreliable spot elevations are shown with an “x” preceding the value.
2.14.1 Vertical limits of airspace are not shown.
2.18.3.1 Julian Calendar is also used.
Chapter 3 Aerodrome Obstacle Chart . ICAO Type A (Operating Limitations)
3.1 The U.S. produces an Airport Obstruction Chart which covers the basic requirements called for by Aerodrome Obstruction Chart . ICAO Type A.
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