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aerodrome and heliport.
2.2.2 The heliport reference point shall be located near
the initial or planned geometric centre of the heliport and shall
normally remain where first established.
Annex 14 — Aerodromes Volume II
96//1111//9975 4
No. 2
2.2.3 The position of the heliport reference point shall be
measured and reported to the aeronautical information services
authority in degrees, minutes and seconds.
2.3 Heliport elevation
2.3.1 The heliport elevation and geoid undulation at the
heliport elevation position shall be measured and reported to
the aeronautical information services authority to the accuracy
of one-half metre or foot.
2.3.2 For a heliport used by international civil aviation,
the elevation of the touchdown and lift-off area and/or the
elevation and geoid undulation of each threshold of the final
approach and take-off area (where appropriate) shall be
measured and reported to the aeronautical information services
authority to the accuracy of:
— one-half metre or foot for non-precision approaches; and
— one-quarter metre or foot for precision approaches.
Note.— Geoid undulation must be measured in accordance
with the appropriate system of coordinates.
2.4 Heliport dimensions and related information
2.4.1 The following data shall be measured or described,
as appropriate, for each facility provided on a heliport:
a) heliport type — surface-level, elevated or helideck;
b) touchdown and lift-off area — dimensions to the nearest
metre or foot, slope, surface type, bearing strength in
tonnes (1 000 kg);
c) final approach and take-off area — type of FATO, true
bearing to one-hundredth of a degree, designation
number (where appropriate), length, width to the nearest
metre or foot, slope, surface type;
d) safety area — length, width and surface type;
e) helicopter ground taxiway, air taxiway and air transit
route — designation, width, surface type;
f) apron — surface type, helicopter stands;
g) clearway — length, ground profile; and
h) visual aids for approach procedures, marking and
lighting of FATO, TLOF, taxiways and aprons.
i) distances to the nearest metre or foot of localizer and
glide path elements comprising an instrument landing
system (ILS) or azimuth and elevation antenna of
microwave landing system (MLS) in relation to the
associated TLOF or FATO extremities.
2.4.2 The geographical coordinates of the geometric
centre of the touchdown and lift-off area and/or of each
threshold of the final approach and take-off area (where
appropriate) shall be measured and reported to the aeronautical
information services authority in degrees, minutes, seconds
and hundredths of seconds.
2.4.3 The geographical coordinates of appropriate centre
line points of helicopter ground taxiways, air taxiways and air
transit routes shall be measured and reported to the
aeronautical information services authority in degrees,
minutes, seconds and hundredths of seconds.
2.4.4 The geographical coordinates of each helicopter
stand shall be measured and reported to the aeronautical
information services authority in degrees, minutes, seconds
and hundredths of seconds.
2.4.5 The geographical coordinates of significant
obstacles on and in the vicinity of a heliport shall be measured
and reported to the aeronautical information services authority
in degrees, minutes, seconds and tenths of seconds. In
addition, the top elevation rounded up to the nearest metre or
foot, type, marking and lighting (if any) of the significant
obstacles shall be reported to the aeronautical information
services authority.
2.5 Declared distances
The following distances to the nearest metre or foot shall be
declared, where relevant, for a heliport:
a) take-off distance available;
b) rejected take-off distance available; and
c) landing distance available.
2.6 Co-ordination between aeronautical information
services and heliport authorities
2.6.1 To ensure that aeronautical information services
units obtain information to enable them to provide up-to-date
pre-flight information and to meet the need for in-flight
information, arrangements shall be made between aeronautical
information services and heliport authorities responsible for
heliport services to report to the responsible aeronautical
information services unit, with a minimum of delay:
a) information on heliport conditions;
b) the operational status of associated facilities, services
and navigation aids within their area of responsibility;
Chapter 2 Annex 14 — Aerodromes
　
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