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of LPs on a touchdown and lift-off area shall be nine. The total
length of LPs in a pattern shall not be less than 50 per cent of
the length of the pattern. There shall be an odd number with a
minimum number of three panels on each side of the touchdown
and lift-off area including a panel at each comer. LPs
shall be uniformly spaced with a distance between adjacent
panel ends of not more than 5 m on each side of the touch-
5.3.8.19 Recommendation.- When located within the
safety area of a heliport or within the obstacle fiee sector of a
helideck, the touchdown and lift-ofiareafloodlights should not
exceed a height of 25 cm.
5.3.8.20 The LPs shall not extend above the surface by
more than 2.5 cm.
5.3.8.21 Recommendation.- The light distribution of
the perimeter lights should be as shown in Figure 5-9,
Illustration 6.
down and lift-off area.
5.3.8.22 Recommendation.- The light distribution of
5.3.8.1 1 Recommendation.- When LPs are used on an the LPs should be as shown in Figure 5-9, Illustration 7.
elevated heliport or helideck to enhance surface texture cues,
the panels should not be placed adjacent to the perimeter 5.3.8.23 The spectral distribution of touchdown and liftlights.
They should be placed around a touchdown marking off area floodlights shall be such that the surface and obstacle
where it is provided or coincident with heliport identification marking can be correctly identified.
marking.
5.3.8.24 Recommendation.- The average horizontal
5'3.8.12 Touchdown and area be illuminance of thefloodlighting should be at least 10 lux, with
located as avoid glare pilots in flight Or personnel a uniformity ratio (average to of not more than
working On the area. The arrangement and aiming of flood- measured on the surface of the touchdown and l$-ofiarea.
lights shall be such that shadows are kept t0.a minimum.
Note.- ASPSL and LPs used to designate the touchdown
andor heliport identification marking have been shown to
provide enhanced surface texture cues when compared to lowlevel
floodlights. Due to the rr3k of misalignment,, iffloodlights
are used, there will be a need for them to be checked periodically
to ensure they remain within the specifications contained
within 5.3.8.
Characteristics
5.3.8.13 The touchdown and lift-off area perimeter lights
shall be fixed omnidirectional lights showing green.
5.3.8.25 Recommendation.- Lighting used to identlfi
the touchdown marking should comprise a segmented circle of
omnidirectional ASPSL strips showing yellow. The segments
should consist of ASPSL strips, and the total length of the
ASPSL strips should not be less than 50 per cent of the
circumference of the circle.
5.3.8.26 Recommendation.- I f utilized, the heliport
identification marking lighting should be omnidirectional
showing green.
5.3.9 Winching area floodlighting
5.3.8.14 At a surface level heliport, ASPSL or LPs shall Application
emit green light when used to define the perimeter of the
touchdown and lift-off area. 5.3.9.1 Winching area floodlighting shall be provided at a
winching area intended for use at night.
5.3.8.15 The provisions of 5.3.8.13 and 5.3.8.14 shall
not require the replacement of existing installations before
1 January 2009.
Location
5.3.8.16 Recommendation.- The chromaticity and
luminance of colours of LPs should conform to Annex 14,
Volume I, Appendix 1, 3.4.
5.3.8.17 An LP shall have a minimum width of 6 cm. Thr:
panel housing shall be the same colour as the marking it
defines.
5.3.8.18 Recommendation.- The perimeter lights
should not exceed a height of 25 cm and should be inset when
a light extending above the surface could endanger helicopter
operations.
5.3.9.2 Winching area floodlights shall be located so as to
avoid glare to pilots in flight or to personnel working on the
area. The arrangement and aiming of floodlights shall be such
that shadows are kept to a minimum.
Characteristics
5.3.9.3 The spectral distribution of winching area
floodlights shall be such that the surface and obstacle
markings can be correctly identified.
2511 1/04
No. 3
Annex 14 -Aerodromes Volume 11
5.3.9.4 Recommendation.- The average horizontal
illuminance should be at least 10 lux, measured on the surface
of the winching area.
5.3.10 Taxiway lights
Note.- The specifications for taxiway centre line lights
and taxiway edge lights in Annex 14, Volume 1, 5.3.16 and
5.3.17 are equally applicable to taxiways intended for ground
taxiing of helicopters.
5.3.1 1 Visual aids for denoting obstacles
Note.- The specifcations for marking and lighting of
　
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