ACA Hurricane
Introduction The '''ACA Hurricane''' is an electro-mechanical and rotating-directional, 130dB civil defense siren, created and produced by Alerting Communicators of America ''(ACA)''. ACA began manufacturing the Hurricane 130 in 1968, and ended production in 1981.The Hurricane 130 is very similar to the Federal Signal Thunderbolt series, being a supercharged siren. The Hurricane MKII-130 siren illustrated in the manual. '''''(Model CD1-103 Size C)'''''
History The ACA Hurricane 130 was designed by James E. Biersach of Alerting Communicators of America and presented at a Civil Defense convention in November 1968.They introduced other sirens, however, this utilized new fiberglass casting techniques, which was never before used by any other company. It was available in dual tone 8/10, 10/12, 8/12 port, or single tone 8, 10, or 12 port configurations, but most models were equipped with an 8/10 chopper port ratio (similar to a Major Third). It was meant to compete with Federal Signal's Thunderbolt siren series at the time. The Hurricane started off with a square horn (''similar to the Federal Signal Thunderbolt''), but ended with two throats where the horn attaches to the chopper enclosure. Additionally, the Hurricane siren was a supercharged mechanical siren, utilizing a blower and high output chopper similar to the Federal Signal Thunderbolt. These were produced until 1973 when a larger, rounded horn was made, that was a true exponential horn. This siren was popular with towns looking for a high output 130dB siren.Later on, ACA opted to change the design of the Hurricane to make it stand out from the Thunderbolt siren, and to also avoid any potential lawsuits over the two similar designs. Aside from that, they decided to correct some design flaws that were discovered in the original model. These changes to the design include a pole-mounted vertical blower, the controller was removed from blower assembly and housed in its own cabinet, and most notably, the horn changed from rectangular to circular. This model was dubbed the "''Hurricane 130 MKII"'' by the company. It also utilizes a 30-horsepower blower motor, as opposed to the 7.5-horsepower blower motor on the Federal Signal Thunderbolt. The company continued production of the Hurricane siren until 1980, when the Hurricane was replaced with the Penetrator P-50, a 50-horsepower, dual-tone, 135 dB siren. All versions of the ACA Hurricane are very rare, with the square-horn variant being the most rare out of all of them. Most of units have been replaced by newer, capable sirens.
Technical information  Year  Type Horn Shape Port Ratios (Chopper) Notes1968Hurricane 130Square10/12 Cylinder-shaped rotator assembly, with small collector rings. 1970sHurricane 130Square10/12, 8/10, 8/12, 8/8, 10/10, and 12/12Larger stationary rotator box, with larger collector rings for improved performance.1973Hurricane MKII-130Round10/12, 8/10, 8/12, 8/8, 10/10, and 12/12This type featured a larger non-stationary rotator box, a redesigned chopper assembly, a larger round exponential horn, and used a 30 HP compressor, as opposed to an earlier 25 HP compressor.1973Hurricane MKII-130Round10/12, 8/10, 8/12, 8/8, 10/10, and 12/12Equipped with solenoids to produce "High-Low" tone capability for a "Fire" signal. Mid-1970sHurricane MKII-130                                 Round10/12, 8/10, 8/12, 8/8, 10/10, and 12/12Utilizes a modified "clamshell type" rotator box to allow for easy maintenance. Most commonly seen Hurricane of all types which mostly came with an 8/10 chopper port ratio.
Cities that had/use the Hurricane 130 Model  Cities Using Or That Have Used The ACA Hurricane Number of Sirens, Operation Status Model Addyston, OH 1, removed which was roof-mounted. Currently owned by Clayton Werden Electric Co. MKII-130 Baxter, MN Exact number of units unknown. One unit suffered from a mechanical failure which was removed and replaced in 2007 with a Federal Signal 2001-130  130 Benton Harbor, MI About 10 were removed and replaced with Whelen Engineering WPS omnidirectional electronic sirens in 1996. (''Cook Nuclear Power Plant'') MKII-130 Centralia, IL 2, 1 removed which was installed on a multi-level parking garage-type building which was demolished, other unit was removed from its place in 2010 which is now in private possession. 130 Crystal River, FL Approximately 10, removed (''Crystal River Nuclear Power Plant system''). All Hurricane MKII-130 units were replaced with electronic sirens from Whelen Engineering. MKII-130 Darien, IL 3, 1 has been removed and replaced by an American Signal Corporation / Fulton Technologies Tempest T-128.One was removed in 2010 for private possession, located in 1934 Manning Rd., and was replaced by a Federal Signal 2001-130 which has been also replaced recently with a T-128.Location of the third unit is yet to be confirmed which was said to be replaced with a Federal Signal 2001-SRNB. MKII-130 DeKalb, IL 3, removed. One unit was a 1968 version of the Hurricane which featured a smaller cylinder-shaped rotator assembly, replaced by Federal Signal 2001 series electro-mechanical sirens in 1989 due to partial system failure during a tornado warning. 130 Elk Grove Village, IL 4, removed. One unit was replaced with an ACA Penetrator P-50.130 Garland, TX 4, removed. 2 units were sold in an auction in 2004, replaced with Acoustic Technologies Incorporated (''ATI'') omni-directional sirens then were replaced later with sirens manufactured by Whelen Engineering Company. MKII-130 Greendale, WI 1, removed. Replaced with an American Signal Corporation (''ASC'') Tempest T-128.MKII-130 Glendale, WI 1, removed. Used to be located at North Shore Montessori School. Replaced in 1992 with an ACA Penetrator P-15 electro-mechanical siren located at Lincoln Park. MKII-130 Greenville, TX 2, both have been removed. An ATI has replaced the Hurricane located off the highway, which is located across the way from the Hurricane’s old location. MKII-130Kewaunee, WIAt least 4 were removed and replaced later on. (''Kewaunee Nuclear Power Plant'')MKII-130 La Crescent, MN 3, removed. The Hurricane MKII-130 unit located in Veteran's Park was replaced by a Sentry 10V electro-mechanical and omnidirectional siren, while the Hurricane MKII-130 unit located in Ice Arena was replaced by a Federal Signal 2001-130.The third unit which was located in Kistler Park did not have any type of siren replacement. Before its replacement, the last active two (2) Hurricane MKII-130 units in La Crescent, have no functional rotating mechanism and one of which does not have any functional blower which resulted in weaker coverage. MKII-130 Milwaukee, WI Exact number of units unknown, only 1 unit remains active and located in Milwaukee Fire Station 39 (''8025 W Bradley Rd.'') is confirmed functional with no sources of replacement. It will only be removed if it ceases operation. The other unit is stored at the American Signal Corporation (''ASC'') Headquarters. All square-horn Hurricane 130's were manufactured here, and according to other siren enthusiasts, more Hurricane 130 units were installed in the city one time. MKII-130, 130 Minnetonka, MN 3, removed. 130 Moore, OK 2, All removed and replaced. MKII-130Normal, ILExact number of units unknown, all removed and were replaced later on with ACA Penetrator P-15 units.MKII-130, 130 Oak Harbor, Ohio All units were removed and replaced with Federal Signal Thunderbolt and XT22 sirens. All units were part of the Davis Besse nuclear power plant system. MKII-130 Plymouth, MN 1, this unit was placed along I-694 which was removed in 1990 and replaced by a Federal Signal 2001-DC. 130 Rolling Meadows, IL 3, removed. One of which was reported having three signal capability which was located in Former Rolling Meadows Fire Department Station 15, which was replaced by an ACA Alertronic AL-6000R in 1988.All Alertronic AL-6000R units that replaced the Hurricane 130 units have been replaced also with an American Signal Tempest T-128 AC/DC. MKII-130, 130 Spencer, IN 2, All removed in 1993.1 unit was bought by a private owner, the other unit was most likely scrapped. MKII-130
References http://civildefensemuseum.org/sirens/hcane/station3b.jpghttp://www.civildefensemuseum.com/sirens/sirenpx4.htmlhttp://www.civildefensemuseum.com/sirens/manuals/Hurricane_130_MK2.pdfhttp://www.civildefensemuseum.com/sirens/manuals/Hurricane_130_Manual.pdf