ITS/ETL UL-Series Unlighted Signs Technical Information
Manufactured in accordance with FAA Advisory Circular 150/5345-44F

Click here for a CAD drawing of Lumacurve's Unlighted Sign.
Constructed in 4 foot and 6 foot lengths, single and double faced, UL Series Unlighted Signs accommodate numerous legend requirements. Signs can be mounted on a cement pad or with stakes. CONSTRUCTION: Sign panels are made of .080 inch aluminum sheeting covered by a high intensity retroreflective material and secured to a frame made of 1.5 inch X 1.5 inch aluminum angle (.1875 inch thickness). Frames are mounted to support columns constructed of 2-inch schedule 40 aluminum tubing which are joined to frangible couplings with 2-inch female connectors. Couplings are then screwed into either stake mounts or floor flanges. FRANGIBLITY: Per FAA specifications, UL signs are available in two “modes” of frangibility. To meet the minimum strength requirements, signs must withstand a certain wind load produced by jet blast. At the same time, signs must break over at a given applied static load. PACKING & SHIPPING: As many as four signs are packed in a heavy weight corrugated carton (75 inch x 50 inch x 8 inch). The signs are shipped complete with couplings and floor flanges attached. INSTALLATION: In accordance with FAA AC 150/5340-18 on signs systems, signs should be mounted at the following distances from the “defined taxiway/runway edge”: Size 1 (small) 10 – 20 feet (3 - 6 meters) Size 2 (medium) 20 – 35 feet (6 -10.5 meters) Size 3 (large) 35 – 60 feet (10.5 - 18 meters) We recommend that signs be mounted at or beyond the maximum distances at airports where there is jet aircraft traffic. Airports with wide-body jet operations should use only Size 3 (large) signs mounted 60 or more feet from the pavement edge. WARRANTY: Standard Signs Inc warrants that all UL Series Unlighted Signs are manufactured and will perform in accordance with FAA AC 150/5345-44. Any defect in design, materials, or workmanship which may appear during proper and normal use for a period of one (1) year from installation date or a maximum of three (3) years from shipment date will be corrected by repair or replacement by Standard Signs Inc, FOB factory, Cleveland OH.
Dimensions
Character Height
Panel Height
Size 1 (small)
12 inches
18 inches
Size 2 (medium)
15 inches
24 inches
Size 3 (large)
18 inches
30 inches
Single Faced
Double Faced
Sign Width
6.5 inches
7 inches
Sign Length
4 foot or 6 foot
Wind Load Minimum
Break Over Load
Mode 1
100 mph (161 km/h)
0.9 PSI (6.21 kPa)
Mode 2
200 mph (322 km/h)
1.3 PSI (9.96 kPa)
