Are Thunderbolt sirens still made?
Are Thunderbolt sirens still made?
The Thunderbolt siren is a discontinued electro-mechanical warning siren that was once manufactured in the United States by Federal Signal Corporation .
How many Thunderbolt sirens are there?
The Federal Thunderbolt was the siren of choice by many Civil Defense authorities and emergency management agencies from the early 1950s through the late 1970s. Production ended in 1990 (Though allegedly they could be ordered until the early 90s), and it is estimated that approximately 16,000 units were produced.
How do Thunderbolt sirens work?
The Thunderbolt siren pumps a large volume of low pressure air through it’s chopper rotor with the blower to increase the sound volume coming out the horn. The Thunderbolt 1000 chopper rotor is the same as the chopper rotor used in the Federal Model 2 siren.
What is a Thunderbolt 1000?
The Thunderbolt 1000 is a single-tone siren. The 1000’s chopper has 5 ports. The rotor is the same as that used in the Model 2, as well as the same motor. In retrospect, the Thunderbolt is said by some to be a Model 2 with a horn and a blower which it essentially is.
What is inside a Thunderbolt siren?
The Thunderbolt siren consists of three major parts: the blower, rotator and siren chopper. The chopper is located in the cylindrical housing that the horn/projector attaches to at the top of the siren.
What is the loudest siren speaker?
The Feniex Triton 100W Speaker: compact to fit stealthily in even the smallest spaces and INCREDIBLY loud. With 85 degree sound dispersion and a 100 watt power rating this speaker is sure to do the job. The Triton works great with any siren and is sure to impress!
When did the Federal Thunderbolt siren come out?
The Federal Signal Thunderbolt was the siren of choice by many Civil Defense authorities and emergency management agencies from the early 1950s through the late 1970s.
How many tone does a Thunderbolt siren have?
The Thunderbolt has seven chopper levels, or voltage settings, that allow the pitch to be adjusted on the chopper, which gave the benefit to use lower or higher tones depending on the terrain and surroundings. The Thunderbolt can come in three port ratios, 5 Port single tone, or 4/5, and 5/6 Port dual tone.
How does a thunderbolt air raid siren work?
Originally the Thunderbolt used a motor and an Abart gear reducer driven by pulley to drive the large spur gear which makes the projector rotate. The pulleys utilized 3 different belt slots to change the RPM in which the siren rotates, from 2, 4, and 8 RPM.
Which is the only siren that does the HI-LO signal?
A Thunderbolt 1003 is the only thunderbolt model that can do the Hi-Lo signal A model 1000 or 1000T The Federal Signal Thunderbolt siren is one of the most famous “older siren” in the history of sirens. The Thunderbolt siren consists of three major parts: the blower, rotator and siren chopper.
