25 May 2005
correcting existing deficiencies unless
directed to in these
Visual NAVAID Controls
The control system shall be [expanded as required] [replaced with
a modernized system] [a new system]. Expansion of existing system
shall be with components compatible with the existing control
traditional switch/relay system or Programming Logic Controllers
(PLCs). All new control systems shall be based upon PLCs. Control
systems shall be in conformance with Figures 12.3 or 12.4 and
other requirements of UFC 3-535-01.
All visual NAVAID lights shall be in conformance with the details
in UFC 3-535-2. Light fixtures shall be incandescent or quartz.
LED lights will not be permitted. Plastic light can bases and
plastic bolts are not permitted.
Unidirectional green threshold light fixtures shall meet the
candela requirements of 10,000 CD minimum average for green
light. L-850-E military style 2, unidirectional threshold
fixtures manufactured by Siemens Airfield Solutions, Inc., Part
No. 44A6248-1x10, will meet the candela requirements.
Obstruction Surveys and Profiles
Obstruction surveys and profiles shall conform to the applicable
provisions of UFC 3-535-01 and are required for [ALSF-1], [ALSF-
2], [MALSR], and [PAPI]. Results of the obstruction survey and
profile plots shall be included with the first submittal of the
Contractor-furnished Design Analysis.
Signs and Markers
All mandatory signs and markers will be included for airfield
pavements included in the project. Signs and markers consist of:
Guidance Signs Informative
Guidance Signs Mandatory
Runway Distance Marker
Arresting Gear Marker
The required signage varies with runway Operational Category.
Required signage is listed in Tables 2.1A and 2.1B of UFC 3-535-
01 and in NAVAIR 51-50AAA-2. Arresting Gear Markers (AGM) are
required for each end of the arresting gear. There is no standard
configuration for signing that applies to all airfields. New
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