UFC 3-535-01
17 November 2005
1-11.2.2.7
Existing navigational aids (NAVAIDS).
1-11.2.3
Record all alternatives considered, their consequences, necessary
mitigative efforts, and evidence of coordination.
1-12
METRICATION OF DIMENSIONS
Use the International Civil Aviation Organization's (ICAO) standard English or metric
equivalents rounded off (for example, 30 meters equals 100 feet), even though they do
not represent exact conversions. No change in standard dimensions, tolerances, or
performance specifications is needed if they are applied consistently
NOTE: Executive Order 12770, Metric Usage in Federal Government Programs (July
25, 1991), requires use of metric units in procurement of supplies and services.
1-13
PHOTOMETRIC BASIS
Photometric requirements specified in this document are drawn from standards
established by the ICAO. They have been augmented and modified as necessary to
accommodate Air Force requirements.
1-14
EXISTING FACILITIES
Do not use this document as a sole basis for advancing standards for existing facilities
and equipment, except where necessary for a minimum acceptable level of safety,
quality, and performance. You may continue to support existing systems with equipment
fabricated to the original specifications until the system is upgraded. If there is a change
in mission which results in reclassification of the facility, an upgrade to current
standards is required. When existing facilities are modified, construction must conform
to the criteria in this document unless waived in accordance with paragraphs
1-10 and 1-11. If co-mingling of new generation equipment with older equipment is
required, make sure the difference in performance does not degrade the system in any
way.
1-15
DOCUMENT ORGANIZATION
This document has two parts:
1-15.1
Part 1
Contains the standards which each visual air navigational facility must meet. The
information in Chapters 1 through 11 serves as siting criteria for the design of specific
installations. This part also provides application criteria to ensure that planned
installations are appropriate for their intended purpose.
1-15.2
Part 2
Chapters 12 through 15 contain information for each system including an explanation as
to purpose, configuration, construction, photometrics, and related equipment guidelines
as approved for US Army and Air Force use.
1-15.3
UFC 3-535-02, Design Drawings for Visual Air Navigation Facilities
UFC 3-535-02, Design Drawings for Visual Air Navigation Facilities, supplements this
document by providing guidance and detailed information on standard configurations
and equipment. It is composed of drawing details for design and construction of
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