INTERNATIONAL STANDARDS
AND RECOMMENDED PRACTICES
AERODROMES
ANNEX 14
TO THE CONVENTION ON INTERNATIONAL CIVIL AVIATION
VOLUME 11
HELIPORTS
SECOND EDITION - JULY 1995
CORRIGENDUM
1. Please replace existing page 35, dated 911 1195, by the attached new page bearing the notation "Corr".
2. Record the entry of this corrigendum on page (ii) of Annex 14, Volume II.
Annex 14
Volume XI
2nd Edition
Comgendum
(English only)
20/10/95
Chapter 5
5.2.8 Touchdown marking
Annex 14 -Aerodromes
Characteristics
Application
5.2.8.1 Recommendation.- A touchdown marking
should be provided where it is necessary for a helicopter to
touch down in a specific position.
Location
5.2.8.2 A touchdown marking shall be located so that
when a helicopter for which the marking is intended
is positioned, with the main undercarriage inside the
marking and the pilot situated over the marking, all parts
of the helicopter will be clear of any obstacle by a safe
margin.
5.2.8.3 On a helideck or on an elevated heliport the centre
of the touchdown marking shall be located at the centre of the
touchdown and lift-off area except that the marking may be
offset away from the origin of the obstacle-free sector by no
more than 0.1 D where an aeronautical study indicates such
offsetting to be necessary and that a marking so offset would
not adversely affect the safety.
Characteristics
5.2.8.4 A touchdown marking shall be a yellow circle and
have a line width of at least 0.5 m. For a helideck the line
width shall be at least 1 m.
5.2.9.3 A heliport name marking shall consist of the name
or the alphanumeric designator of the heliport as used in the
IVT communications.
5.2.9.4 Recommendation.- The characters of the
marking should be not less than 3 m in height at su$ace level
heliports and not less than 1.2 m on elevated heliports and
helidecks. The colour of the marking should contrast with the
background.
5.2.9.5 A heliport name marking intended for use at night
or during conditions of poor visibility shall be illuminated,
either internally or externally.
5.2.10 Helideck obstacle-free
sector marking
Application
5.2.10.1 Recommendation.- A helideck obstacle-free
sector marking should be provided at a helideck
Location
5.2.10.2 A helideck obstacle-free sector marking shall be
located on the touchdown and lift-off area marking.
5.2.8.5 On helidecks the inner diameter of the circle shall Characteristics
be half the D value of the helideck or 6 m whichever is the
greater. 5.2.10.3 The helideck obstacle-free sector marking shall
indicate the origin of the obstacle free sector, the directions of
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