UFC 3-535-01
17 November 2005
TERPS to verify runway and field elevations. This sign should be combined and/or
collocated with the TACAN Checkpoint Sign when available, as the same height and
lettering requirements apply. Lettering may be abbreviated as follows: "ALT CHK PT -
ELEV: XXXX," where "XXXX" is the elevation in feet above mean sea level.
9-3.2.6
Other informational signs have messages and are located as determined
by operations.
9-3.2.7
Guidance and information signs may be FAA Size 1, 2 or 3. Size 3 signs
are recommended for Category I facilities and higher. Locate a Size 3 sign 11-18
meters (35-60 feet), a Size 2 sign 6-11 meters (20-35 feet), and a Size 1 sign 3-6
meters (10-20 feet) from edge of runway or taxiway. The distance indicated is to the
inside edge of a sign. Signs are oriented perpendicular to the runway or taxiway
centerline, but may be canted up to 15 degrees to increase visibility if the sign is not a
double-face sign.
9-3.2.8
Direction signs other than runway exit signs may be grouped in an array
with a location sign. Destination signs may not be grouped with other signs, but may be
on the back of another sign in which case it would be on the right hand side for traffic.
See guidance in paragraph 9-5 for conventions on sign arrays. See FAA 150/5340-18
and associated SAMS for further guidance on grouping several sign messages in an
array.
9-3.3
Characteristics
See Chapter 13 and FAA 150/5345-44 for additional characteristic information.
9-3.3.1
Message
See paragraph 9-2.3.1.
9-3.3.2
Dimensions
See paragraph 9-2.3.2. For TACAN Checkpoint signs, the character height must not be
less than 15 centimeters (6 inches) or more than 22 centimeters (9 inches), and the
stroke width not less than 2 centimeters (1 inch). The height of a TACAN Checkpoint
sign must not be more than 0.8 meters (32 inches) and the length not more than 1.8
meters (72 inches), with the maximum sign elevation above the taxiway edge not more
than 1 meter (40 inches). The TACAN Checkpoint sign should not be located less than
15 meters (50 feet) from the taxiway edge.
9-3.3.3
Electrical
See paragraph 9-2.3.3.
9-3.3.4
Photometrics
The average sign luminance, as determined in accordance with FAA AC 150/5345-44,
must be as follows for all intensity steps: yellow background, 10 to 30 foot-lamberts,
with 16 to 30 foot-lamberts at the 2 highest intensity steps.
9-3.4
Power and Control
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