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        InfoCivil defense sirens, also known as air raid or tornado sirens, come in many different shapes and sizes. There are 2 main types of civil defense sirens. An electromechanical siren is a siren that uses an electric motor to drive a spinning rotor, or chopper, inside of a stationary stator. An electronic siren is much different than a mechanical siren. Rather than using a chopper, electronic sirens make use of a tone generator or stored preset sounds and amplifier inside a controller, which broadcasts tones to the siren itself. Featured Siren  The OS-10V (Omnidirectional Siren, 10 hp, Vertical) is an omnidirectional electromechanical siren that is produced by the Lambton Siren & Signal Company (LS&S), based out of Sarnia, Ontario, Canada. Essentially an omnidirectional variant of the popular LS&S RS-10, this siren is popular with many communities across North America for its high reliability, ease of maintenance, and great performance for its cost. It was originally designed to compete with the likes of the ACA Banshee 115 and the Federal Signal STH-10/STL-10, and continues to compete with newer sirens 40 years later. The OS-10V, along with the rotational RS-10, was released in 1982 as part of LS&S's new 1982 lineup of sirens. The OS-10V was released to supplement the existing DR-7V, whose sales were beginning to decline as cities were looking to update their aging civil defense warning systems and newer, stronger sirens were entering the market. The DR-7V would remain in production alongside the new sirens, as it found its own niche as a fire siren. Like all of LS&S's sirens, the OS-10V was designed with both cost and efficiency in mind, and as such uses a design that is easy to assemble and disassemble for maintenance, while performing very well. The OS-10V comes standard in 9-port single tone, and unlike the RS-10, it does not have a high or low tone option. It is also available in dual tone as the OS-10VT, using the 9/12-port "dual intake" rotor and stator from the RS-10TT. The siren's aluminum rotor uses a curved vane design similar to those used on B&M's sirens, which is the most optimal rotor design with the most efficient airflow and performance for the rotor's size. The rotor itself measures at 25 inches, able to move a significant amount of air. This rotor configuration is the most efficient configuration, and combined with the rotor's size, allows for a significant amount of air to be moved. The OS-10V is available in either 120/220 V single phase, or 120, 240 or 480 V three-phase. Due to the high quality motors used and the size of the siren's rotor, this siren is known for coasting for a very long time after shutting off. The OS-10V is rated for 126 dB at 100 ft, outperforming some of its modern competitors such as the Eclipse-8 or the Sentry 10V and 14V. (Full article...) Previous featured siren: • LS&S RS-10
Welcome to the Fictional Sirens Wiki!
This is a wiki dedicated to sirens that don't exist in real life. Here, you can put any siren from any media, or a siren that you just came up with off the top of your head, with absolutely no restrictions. So let your imagination run wild, and have fun! Check out our (serious) sister wikis! Civil Defense Sirens Wiki (RETIRED) Siren Systems Wiki (RETIRED) The Crossing Signal Equipment Database (DELETED) Wiki Rules1: Please be respectful to all users, any conflicts between users should be sorted out privately. Drama should be kept to a minimum. 2: Do not vandalize articles, or otherwise bring harm to the wiki. You will be banned, and any damage done can be very easily rolled back. 3: Keep articles easy to read, and use formatting and grammar. It Is Not Okay To Type Like This. If your article makes users lose brain cells from how poorly written it is, you're doing something wrong. Proper grammar and formatting is very important. Avoid making huge walls of text, break them up into paragraphs. 4. Have fun! This wiki is not meant to be as serious as its sister wikis, so run wild with your ideas! Want a 500HP siren that emits 150db at 100ft, with a horn the size of a radar dish? Go for it! There are no limits to your imagination here.
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