Publication: Magyar Közlöny
Issue: MK-2007-70 (Year: 2007, Number: 70)
Era: 2004-2010
Section: Melléklet a 2007. évi XLVI. törvényhez
Paragraph Index: 5955

c) Landing distance available (LDAH). The length of the final approach and take-off area plus any additional area declared available and suitable for helicopters to complete the landing manoeuvre from a defined height. Elevated heliport. A heliport located on a raised structure on land. Ellipsoid height (Geodetic height). The height related to the reference ellipsoid, measured along the ellipsoidal outer normal through the point in question. Final approach and take-off area (FATO). A defined area over which the final phase of the approach manoeuvre to hover or landing is completed and from which the take-off manoeuvre is commenced. Where the FATO is to be used by performance class 1 helicopters, the defined area includes the rejected take-off area available. Geodetic datum. A minimum set of parameters required to define location and orientation of the local reference system with respect to the global reference system/frame. * All ISO Standards are listed at the end of this chapter. 2007/70/II. szám Annex 14 — Aerodromes Volume II 9/11/95 25/11/04 No. 3 Geoid. The equipotential surface in the gravity field of the Earth which coincides with the undisturbed mean sea level (MSL) extended continuously through the continents. Note.— The geoid is irregular in shape because of local gravitational disturbances (wind tides, salinity, current, etc.) and the direction of gravity is perpendicular to the geoid at every point. Geoid undulation. The distance of the geoid above (positive) or below (negative) the mathematical reference ellipsoid. Note.— In respect to the World Geodetic System — 1984 (WGS-84) defined ellipsoid, the difference between the WGS-84 ellipsoidal height and orthometric height represents WGS-84 geoid undulation. Gregorian calendar. Calendar in general use; first introduced in 1582 to define a year that more closely approximates the tropical year than the Julian calendar (ISO 19108*). Note.— In the Gregorian calendar, common years have 365 days and leap years 366 days divided into twelve sequential months. Helicopter clearway. A defined area on the ground or water under the control of the appropriate authority, selected and/ or prepared as a suitable area over which a performance class 1 helicopter may accelerate and achieve a specific height. Helicopter ground taxiway. A ground taxiway for use by helicopters only. Helicopter stand. An aircraft stand which provides for parking a helicopter and, where air taxiing operations are contemplated, the helicopter touchdown and lift-off. Helideck. A heliport located on a floating or fixed off-shore structure. Heliport. An aerodrome or a defined area on a structure intended to be used wholly or in part for the arrival, departure and surface movement of helicopters. Integrity (aeronautical data). A degree of assurance that an aeronautical data and its value has not been lost nor altered since the data origination or authorized amendment. Obstacle. All fixed (whether temporary or permanent) and mobile objects, or parts thereof, that are located on an area intended for the surface movement of aircraft or that extend above a defined surface intended to protect aircraft in flight. Orthometric height. Height of a point related to the geoid, generally presented as an MSL elevation. Safety area. A defined area on a heliport surrounding the FATO which is free of obstacles, other than those required for air navigation purposes, and intended to reduce the risk of damage to helicopters accidentally diverging from the FATO. Station declination. An alignment variation between the zero degree radial of a VOR and true north, determined at the time the VOR station is calibrated. Surface level heliport. A heliport located on the ground or on the water. Touchdown and lift-off area (TLOF). A load bearing area on which a helicopter may touch down or lift off. 1.2 Applicability 1.2.1 The interpretation of some of the specifications in the Annex expressly requires the exercising of discretion, the taking of a decision or the performance of a function by the appropriate authority. In other specifications, the expression appropriate authority does not actually appear although its inclusion is implied. In both cases, the responsibility for whatever determination or action is necessary shall rest with the State having jurisdiction over the heliport. 1.2.2 The specifications in Annex 14, Volume II, shall apply to all heliports intended to be used by helicopters in international civil aviation. The specifications of Annex 14, Volume I, shall apply, where appropriate, to these heliports as well. 1.2.3 Wherever a colour is referred to in this volume, the specifications for that colour given in Appendix 1 to Annex 14, Volume I, shall apply. 1.3 Common reference systems 1.3.1 Horizontal reference system 1.3.1.1 World Geodetic System — 1984 (WGS-84) shall be used as the horizontal (geodetic) reference system. Reported aeronautical geographical coordinates (indicating latitude and longitude) shall be expressed in terms of the WGS-84 geodetic reference datum. Note.— Comprehensive guidance material concerning WGS-84 is contained in the World Geodetic System — 1984 (WGS-84) Manual (Doc 9674). 2007/70/II. szám Chapter 1 Annex 14 — Aerodromes 9/11/95 25/11/04 No. 3 1.3.2 Vertical reference system 1.3.2.1 Mean sea level (MSL) datum, which gives the relationship of gravity-related height (elevation) to a surface known as the geoid, shall be used as the vertical reference system. Note 1.— The geoid globally most closely approximates MSL. It is defined as the equipotential surface in the gravity field of the Earth which coincides with the undisturbed MSL extended continuously through the continents. Note 2.— Gravity-related heights (elevations) are also referred to as orthometric heights while distances of points above the ellipsoid are referred to as ellipsoidal heights. 1.3.3 Temporal reference system 1.3.3.1 The Gregorian calendar and Coordinated Universal Time (UTC) shall be used as the temporal reference system. 1.3.3.2 When a different temporal reference system is used, this shall be indicated in GEN 2.1.2 of the Aeronautical Information Publication (AIP). * ISO Standard 19104, Geographic information — Terminology 19108, Geographic information — Temporal schema 2007/70/II. szám 9/11/95 ANNEX 14 — VOLUME II 6/11/97 No. 2 CHAPTER 2. HELIPORT DATA 2.1 Aeronautical data 2.1.1 Determination and reporting of heliport related aeronautical data shall be in accordance with the accuracy and integrity requirements set forth in Tables 1 to 5 contained in Appendix 1 while taking into account the established quality system procedures. Accuracy requirements for aeronautical data are based upon a 95 per cent confidence level and in that respect, three types of positional data shall be identified: surveyed points (e.g. FATO threshold), calculated points (mathematical calculations from the known surveyed points of points in space, fixes) and declared points (e.g. flight information region boundary points). Note. — Specifications governing the quality system are given in Annex 15, Chapter 3. 2.1.2 Contracting States shall ensure that integrity of aeronautical data is maintained throughout the data process from survey/origin to the next intended user. Aeronautical data integrity requirements shall be based upon the potential risk resulting from the corruption of data and upon the use to which the data item is put. Consequently, the following classification and data integrity level shall apply:

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