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Aircraft stand: 5.3.24.5 The azimuth guidance unit and the stopping
position indicator shall be of a design such that:
- horizontal illuminance - 20 lux with a uniformity ratio
(average to minimum) of not more than 4 to I ; and a) a clear indication of malfunction of either or both is
available to the pilot; and
- vertical illuminance - 20 lux at a height of 2 m above b) they can be turned off.
the apron in relevant directions.
5.3.24.6 The azimuth guidance unit and the stopping
Other apron areas: position indicator shall be'located in such a way that there is
continuity of guidance between the aircraft stand markings, the
- horizontal illuminance - 50 per cent of the average aircraft stand manoeuvring lights, if present, and the
illuminance on the aircrafi stands with a uniformity ratio visual docking guidance system.
(average to minimum) of not more than 4 to I.
5.3.24.7 The accuracy of the system shall be adequate for
5.3.24 Visual docking guidance system
Application
5.3.24.1 A visual docking guidance system shall be provided
when it is intended to indicate, by a visual aid, the
precise positioning of an aircraft on an aircraft stand and other
alternative means, such as marshallers, are not practicable.
Note.- The factors to be considered in evaluating the need
for a visual docking guidance system are in particular: the
number and type(s) of aircrafi using the aircraft stand,
weather conditions, space available on the apron and the
precision required for manoeuvring into the parking position
due to aircrafi servicing installation, passenger loading
bridges, etc. See the Aerodrome Design Manual, Part 4 -
Visual Aids for guidance on the selection of suitable systems.
5.3.24.2 The provisions of 5.3.24.3 to 5.3.24.7, 5.3.24.9,
5.3.24.10, 5.3.24.12 to 5.3.24.15, 5.3.24.17, 5.3.24.18 and
5.3.24.20 shall not require the replacement of existing installations
before l January 2005.
Characteristics
5.3.24.3 The system shall provide both azimuth and
stopping guidance.
5.3.24.4 The azimuth guidance unit and the stopping
position indicator shall be adequate for use in all weather,
visibility, background lighting and pavement conditions for
which the system is intended both by day and night, but shall
not dazzle the pilot.
Note.- Care is required in both the design and on-site
installation of the system to ensure that reflection of sunlight,
the type of loading bridge and fixed aircraft servicing
installations with which it is to be used.
5.3.24.8 Recommendation.- The system should be
usable by all types of aircrafi for which the aircrafi stand is
intended, preferably without selective operation.
5.3.24.9 If selective operation is required to prepare the
system for use by a particular type of aircraft, then the system
shall provide an identification of the selected aircraft type to
both the pilot and the system operator as a means of ensuring
that the system has been set properly.
Azimuth guidance unit
Location
5.3.24.10 The azimuth guidance unit shall be located on
or close to the extension of the stand centre line ahead of the
aircraft so that its signals are visible from the cockpit of
aircraft throughout the docking manoeuvre and aligned for use
at least by the pilot occupying the left seat.
5.3.24.1 1 Recommendation.- The azimuth guidance
unit should be aligned for use by the pilots occupving both the
lefi and right seats.
Characteristics
5.3.24.12 The azimuth guidance unit shall provide
unambiguous IeWright guidance which enables the pilot to
acquire and maintain the lead-in line without overcontrolling.
5.3.24.13 When azimuth guidance is indicated by colour
change, green shall be used to identify the centre line and red
for deviations from the centre line.
Chapter 5 Annex I4 - Aerodromes
Stopping position indicator Characteristics
Location
5.3.24.14 The stopping position indicator shall be located
in conjunction with, or sufficiently close to, the azimuth
guidance unit so that a pilot can observe both the azimuth and
stop signals without turning the head.
5.3.24.15 The stopping position indicator shall be usable
at least by the pilot occupying theleft seat.
5.3.24.16 Recommendation.- The stopping position
indicator should be usable by the pilots occupying both the left
and right seats.
Characteristics
5.3.25.3 Aircraft stand manoeuvring, guidance lights,
other than those indicating a stop position, shall be fixed
yellow lights, visible throughout the segments within which
they are intended to provide guidance.
5.3.25.4 Recommendation.- The lights used to delineate
　
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