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should be drawn to scale and all relief exceeding 300 m
10.3.2 Recommendation.- The chart should be drawn (I 000fi) above the aerodrome elevation should be shown by
to scale. smoothed contour lines, contour values and layer tints printed
in brown. Appropriate spot elevations, including the highest
10.3.3 If the ch;ut is drawn to scale, a scale-bar shall be elevation within each top contour line, should be shown
shown. printed in black. Obstacles should also be shown.
10.3.4 When the chart is not drawn to scale the Note I.- The next higher suitable contour line appearing
annotation ''NOT TO SCALE" shall be shown and the symbol on base topographic maps exceeding 300 m (I 000 f5) above
for scale break shall be used on tracks and other of the the aerodrome elevation may be selected to start layer tinting.
chart which are too large to be drawn to scale.
10.4 Projection
Note 2.- An appropriate brown colour, on which ha[f-tone
layer tinting is to be based, is specified in Appendix 3 -
Colour Guide for contours and topographic features.
10.4.1 Recommendation.- A conformal projection on
which a straight lint! approximates a great circle should be Note 3.- Appropriate spot elevations and obstacles are
used. those provided by the procedures specialist.
ANNEX 4 2511 1104
No. 53
Annex 4 - Aeronautical Charts Chapter 10
10.7 Magnetic variation
Magnetic variation used in determining the magnetic bearings,
tracks and radials shall be shown to the nearest degree.
10.8 Bearings, tracks and radials
10.8.1 Bearings, tracks and radials shall be magnetic,
except as provided for in 10.8.2.
Note.- A note to this effect may be included on the chart.
10.8.2 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.
10.8.3 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.
10.9 Aeronautical data
10.9.1 Aerodromes
10.9.1.1 The aerodrome of landing shall be shown by the
runway pattern.
10.9.1.2 All aerodromes which affect the designated
standard amval route - instrument shall be shown and
identified. Where appropriate the aerodrome runway patterns
shall be shown.
10.9.2 Prohibited, restricted and danger areas
Prohibited, restricted and danger areas which may affect the
execution of the procedures shall be shown with their
identification and vertical limits.
10.9.3 Minimum sector altitude
10.9.3.1 The established minimum sector altitude shall be
shown with a clear indication of the sector to which it applies.
10.9.3.2 Where the minimum sector altitude has not been
established, the chart shall be drawn to scale and area
minimum altitudes shall be shown within quadrilaterals
formed by the parallels and meridians. Area minimum
altitudes shall also be shown in those parts of the chart not
covered by the minimum sector altitude.
Note.- Depending on the selected chart scale,
quadrilateralsfinned by the parallels and meridians normally
correspond to the halfdegree of latitude and longitude.
10.9.4 Air traffic services system
10.9.4.1 The components of the established relevant air
traffic services system shall be shown.
10.9.4.1.1 The components shall comprise the following:
1) a graphic portrayal of each standard amval route -
instrument, including:
a) route designator;
b) significant points defining the route;
c) track or radial to the nearest degree along each
segment of the route;
d) distances to the nearest kilometre or nautical mile
between significant points;
e) minimum flight altitudes along the route or route
segments and altitudes required by the procedure to the
nearest higher 50 m or 100 ft and flight level restrictions
where established;
f ) where the chart is drawn to scale and radar vectoring on
anival is provided, established radar minimum altitudes
to the nearest higher 50 m or 100 ft, clearly identified;
Note 1.- Where radar procedures are used to vector
aircrafi to or fiom significant points on a published
standard am'val route or to issue clearance for descent
below the minimum sector altitude during arrival, the
radar procedures may be shown on the Standard Am.val
Chart - Instrument (STAR) - ICAO unless excessive
chart clutter will result.
Note 2.- Where excessive chart.clutter will result, a
Radar Minimum Altitude Chart - ICAO may be
provided (see Chapter 21), in which case the elements
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