Federal Signal 3T22
The Federal Signal 3T22 was an outdoor warning siren made by Federal Signal Corporation (formerly Federal Sign and Signal Corporation) from 1952 through the early 1990s. It has a very recognizable design, having a ten-port rotor (chopper) on the bottom with ten cones (horns) and a 12-port one on top with twelve cones.
![](../I/m/3T22_Sandy%2C_Oregon.jpg)
History
The Federal Signal 3T22 was originally designed as the 2T22 in 1952 or 1954. The 2T22 had the same number of ports and cones. It could produce two main signals (it could produce more but the other signals were rarely used), hence the name "2T22" (the 22 representing the 22 cones and horns). The siren had no solenoids, so it could not perform a "hi-lo" signal. In 1955, Federal designed the 3T22, which was similar, except for its name and that it had solenoids. The 3T22 was superior in design because it could perform the "hi-lo" signal, which is mainly used for fire calls. The 2T22 and 3T22 could produce 113db (measured 100 feet away from the siren). There are four models of this type of siren. the 2T22 A and B and the 3T22 A and B. In the name 3T22, the 3 stands for its three main signals: attack (wail), alert (steady), and hi-lo, and the 22 again stands for the twenty-two cones. The A or B determined whether the motor was three phase or single phase. A 3T22A would be three phase, while a 3T22B would be single phase. The siren was mainly used for air raid warnings during the Cold War era and weather warnings after the war. In the early 1990s, the siren's production was stopped when it was replaced with the newer 2001-SRN, which could reach 126db (also measured 100 feet away), hence the name. Like many other older siren models, these sirens are becoming more uncommon due to their age and because of newer technology. Note: the prototypical design for the 2T22 was 7/12 port.
Design
The 3T22 came in only one port ratio: 10/12. It had ten ports and cones on the bottom and twelve ports and cones on the top. It also had a smaller cone on top to reduce rain and other water-related substances such as snow from getting inside. It had two solenoid boxes, one on top, and one on the bottom. There were also two air intake spots: also one on the top and bottom. The siren had a small stand with three legs so it could be mounted on a pole or roof. The stand could be removed and the siren could be mounted differently.
Cities with 3T22s or 2T22s
- Moore, Oklahoma - 2T22
- Clyde, Ohio - 3T22
- Clarks Hill, Indiana - 2T22
- Bethany, Oklahoma - 3T22
- Sandy, Oregon 3T22 (pictured above; this siren is rarely used and is in bad condition)
- Grand Rapids, Ohio - 3T22
- Genesee Township, Michigan - 3T22
- Zilwaukee, Michigan - 2T22
- Frankenmuth, Michigan - 3T22
- Rhine, Georgia - 2T22
- Pontiac, Illinois - 2T22
- Atlanta, Illinois - 2T22
- Ware Shoals, South Carolina - 3T22
- Tamaqua, Pennsylvania - 3T22
- Greensburg, Pennsylvania - 3T22
- Harrison, Nebraska - 3T22
- Albany, Kentucky - 3T22
- Hampton, Nebraska - 2T22
- Falls City, Nebraska - 3T22
- Newcastle, Wyoming - 2T22
- Ortonville, Michigan - 3T22
- Honolulu, Hawaii - 2T22
- Saint Leon, Indiana - 3T22
- Russell, Kansas - 2T22, 3T22
- Lakota, North Dakota - 3T22
- Dixon, Kentucky - 3T22
- Plentywood, Montana - 3T22
- Hazen, North Dakota - 3T22
- Tea, South Dakota - 3T22
- Newhall, Iowa - 3T22
- Halliday, North Dakota - 3T22
- Turtle Lake, North Dakota - 3T22
- East Williston, New York - 3T22 (removed around 2005 - 2009?)
- Kimball, Nebraska - 2T22
- Zap, North Dakota - 3T22
- Dillon, Montana - 3T22
- Rugby, North Dakota - 2T22, 3T22
- Dunn Center, North Dakota - 2T22
- Thedford, Nebraska - 2T22
- Bassett, Nebraska - 2T22
- LaGrange, Kentucky - 2T22, 3T22
- Atkinson, Nebraska - 2T22
- Mayfield, Kentucky - 2T22
- Cannelton, Indiana - 3T22
- New Haven, Kentucky - 3T22
- Bayard, Nebraska - 2T22
- Holton, Kansas - 3T22
- Amarillo, Texas - 2T22
- Millhousen, Indiana - 3T22
- Mound City, Illinois - 3T22
- Anna, Illinois - 3T22
- Sonora, Kentucky - 3T22
- Hebron, North Dakota - 3T22
- Hillsboro, North Dakota - 2T22
- Salmon, Idaho - 3T22
- Roundup, Montana - 3T22
- Garrison, North Dakota - 3T22
- Bottineau, North Dakota - 3T22
- Centerville, Indiana - 2T22
- Ames, Iowa - 2T22
- Vernon, Connecticut - 3T22 (Removed)
- Beulah, North Dakota - 3T22
- Devils Lake, North Dakota - 3T22
- Wichita, Kansas - 2T22
- Velva, North Dakota - 3T22
- Bowman, North Dakota - 3T22
- Lancaster, Kentucky - 3T22
- McCook, Nebraska - 2T22
- Boys Town, Nebraska - 2T22
- Harrodsburg, Kentucky - 3T22
- Edinboro, Pennsylvania - 3T22
- Mt. Washington, Kentucky - 2T22
- La Platte, Nebraska - 3T22
- Bolivar, West Virginia - 3T22
- Fenton, Missouri - 3T22
- Brooklyn, Wisconsin - 2T22
- Perrysburg, Ohio - 2T22
- Silvis, Illinois - 3T22
- Accord, New York - 3T22
- Colby, Kansas - 3T22
- Louisville, Kentucky - 2T22 and 3T22
- Reedsburg, Wisconsin - 3T22
- South Glens Falls, NY - 3T22
- West Fort Ann, NY - 3T22
- Saratoga Springs, NY - 3T22 (Located in infield at Saratoga Race Course)
- North Baltimore, Ohio - 2T22
- Bridgeport, Pennsylvania - 3T22 (Located at Bridgeport FD but sounds in attack for fire calls)
- Alburnett, Iowa - 2T22 (12pm & 6pm whistles, and Tornado warnings, extremely healthy)
- Port Jefferson, New York - 3T22
- Yaphank, New York - 3T22
- Middle Island, New York - 3T22
- Strausstown, Pennsylvania - 2T22 (Blocked top intake and enclosed in a tower)
- Setauket, New York - 3T22 (Removed in 2018)
- Waterford, NY- 3T22
- Sulphur Springs, Texas - 2T22
- Morganfield, Kentucky - 3T22
- Hollywood, Alabama - 2T22
- Algonquin, Illinois - 2T22
- Hebron, Illinois - 2T22 (installed in 2008-09)
- Clarendon, Arkansas - 3T22
- Williamsburg, Iowa - 3T22 (installed on May 4th, 1977)
- Los Angeles, California - 2T22 (inactive)
- Cambria, Wisconsin - 3T22 (Active, sounds twice per day, 12 and 6, extremely well kept)
- Island Lake, Illinois - 3T22
- Lake Crystal, Minnesota - 3T22
- Mascoutah, Illinois - 3T22 (Two, possibly three active (very healthy), tested first Tuesday of each month at 10:00 AM)
- Arlington, Kansas - 3T22 (tested first Tuesday of every month)