曝光台 注意防骗
网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
exceed 3..5 degrees.
11.10.8.7 Final approach descent angle shall be shown to
the nearest one tenth of a degree for instrument procedures
with vertical guidance.
1 1.10.9 Aeronautical data base requirements
The following data shall be published in tabular form on the
verso of the chart or as a separate, properly referenced sheet:
a) final approach fixes/points and other essential fixes/
points comprising the instrument approach procedure
identified with their geographical coordinates in
degrees, minutes, seconds and tenths of seconds;
b) instrument approach procedure fix formation bearings to
the nearest hundredth of a degree;
c) instrument approach procedure fix formations distance
to the nearest hundredth of a nautical mile; and
d) for non-precision approaches, the final approach descent
angle to the nearest hundredth of a degree.
2511 1/04
No. 53
CHAPTER 12. VISUAL APPROACH CHART - ICAO
12.1 Function
This chart shall provide flight crews with information which
will enable them to transit from the en-route/descent to
approach phases of flight to the runway of intended landing by
means of visual reference.
12.2 Availability
The Visual Approach Chart - ICAO shall be made available
in the manner prescribed in 1.3.2 for all aerodromes used by
international civil aviation where:
1) only limited navigation facilities are available; or
2) radio communication facilities are not available; or
3) no adequate atxonautical charts of the aerodrome and its
surroundings at 1500 000 or greater scale are available;
or
4) visual approach procedures have been established.
12.3 Scale
12.3.1 The scale shall be sufficiently large to permit
depiction of significant features and indication of the aerodrome
layout.
12.3.2 Recomm~endation, The scale should not be
smaller than 1:500 000.
Note.- A scale of 1:250 000 or 1:200 000 is preferred.
12.3.3 Recommendation.- When an Instrument Approach
Chart is available for a given aerodrome, the Visual
Approach Chart should be drawn to the same scale.
12.4 Format
Recommendatio~~.- The sheet size should be 210 x
148 mm (8.27 x 5.82 in).
Note.- It would be advantageous to print the charts in
several colours, selc?cted to provide maximum legibility in
valying degrees and kinds of light.
12.5 Projection
12.5.1 A conformal projection on which a straight line
approximates a great circle shall be used.
12.5.2 Recommendation.- Graduation marks should be
placed at consistent intervals along the neat lines.
12.6 Identification
The chart shall be identified by the name of the city or town
which the aerodrome serves and the name of the aerodrome.
12.7 Culture and topography
12.7.1 Natural and cultural landmarks shall be shown
(e.g. bluffs, cliffs, sand dunes, cities, towns, roads, railroads,
isolated lighthouses, etc.).
12.7.1.1 Recommendation.- Geographical place names
should be included on& when they are required to avoid
conjiuion or ambiguity.
12.7.2 Shore lines, lakes, rivers and streams shall be
shown.
12.7.3 Relief shall be shown in a manner best suited to
the particular elevation and obstacle characteristics of the area
covered by the chart.
12.7.4 Recommendation.- When shown, spot elevations
should be careful& selected.
Note.- The value of certain spot elevations/heights in
relation to both mean sea level and aerodrome elevation may
be given.
12.7.5 The figures relating to different reference levels
shall be clearly differentiated in their presentation.
12.8 Magnetic variation
The magnetic variation shall be shown.
ANNEX 4 12-1
Annex 4 - Aeronautical Charts Chapter 12
12.9 Bearings, tracks and radials
12.9.1 Bearings, tracks and radials shall be magnetic
except as provided for in 12.9.2.
12.9.2 Recommendation.- In areas of high latitude,
where it is determined by the appropriate authority that
reference to Magnetic North is impractical, another suitable
reference, i.e. True North or Grid North, should be used.
12.9.3 Where bearings, tracks or radials are given with
reference to True North or Grid North, this shall be clearly
indicated. When Grid North is used its reference grid meridian
shall be identified.
12.10.2.3.1 When the heights of obstacles are shown, ihe
height datum shall be stated in a prominent position on the
chart and the heights shall be given in parentheses on the chart.
12.10.3 Prohibited, restricted and danger areas
Prohibited areas, restricted areas, and danger areas shall be
depicted with their identification and vertical limits.
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：
ICAO 附件4 Aeronautical Charts an04_10ed_amend_53(28)
