HOR Siren Hamilton ,Ohio (Butler County) monthly test 7 1 09 

HOR stands for "Hear Our Roar!". :-|

I instantly favorited this! This has to be the scariest siren ever created!

Great video Jason! The only siren in Hamilton that isn't a Thunderbolt! That is freaky sounding!

Excellent video of such a rare siren! That HOR sure sounds pretty mean!

Nice video of the Holyoke (ALL CLEAR) Siren Test! No Air Raid Tone was sounded!!

I was hoping that someone in that area would post an actual video of this siren. Someone a while back had a couple audio only recordings of it but nothing that showed how it rotated. The sad thing is, I had no idea that this siren existed when I lived there. I only knew of Fairfield's TBolts, Model 5 and STH10 and Springdale's Allertor and Thunderbolt. I was 5 at the time though so...

Now that's cool! Menacing as hell! Wish they still made sirens like that!

Awesome, that diminshed fifth interval of the 7/10 HOR sirens is probably the creepiest ever made. Incredible vid, thanks for filming this!

anyone got video of the thunderbolt at the FD? just discovered it after i went to Cincinnati on the 5th

@Jpressman8 on TheFiremanSavage video of siren pics, he's got a pic of a T128 blowing flames out of its horn

The strangest sounding and looking siren I ever seen! Happy Halloween!

The interval it sounds is a tri-tone. (Augmented 4th or Diminished 5th in western classical tonality). Just some useless FYI.

WOW! One more rare siren video on RU-vid!

ive never seen a siren like this.

@Jpressman8 Oh. Thanks. Yes, what an interesting siren and rare tones. I stand distant enough thathe sound is not too distorted by microphone over excitation. (forget the term) Then, as the rotor slows and volume decreases, I get closer until I am practically underneath. Wow. I have 488 characters remaining!

Massapequa Fire Department on Long Island NY had a similar HOR's that rotated on their HQ and Park House stations. They still have the HOR's which they test on Saturdays, but they do not rotate anymore. Ah, the good old days!!

yeh i think your right. After all the hoover factory has been closed for about 3-4yrs. Thanks for the feedback

This siren has an ugly sound, but at the same time I can't stop listening. I'm sure this gets people's attention.

I SEEN THIS SIREN IN GOOGLE EARTH!!!

odd sound/rare siren :) great video it rotats O_____o still congrats on a rare siren

@Jpressman8 Yes, why is that siren so low? So that it can be a part of the museum? Much more bearable if on the top of that building behind. Could it damage a baby's or pet's hearing because they do not know to hold their ears closed? Notes G4 and C#5 (tri-tone musical interval) produced by 7 and 11 ports.

Very unique looking and sounding siren. I have never seen one like this before. Are there other types of 7/10 port sirens out there?

it rotates as fast as SOME thunderbolt i've seen

it rotates fast

I believe I saw one of these on a school in N. Scottsdale, AZ in the early 80's. Anyone still in the area please let me know if this was the one. It was a horizontal unit mounted on a short tower like this.

Nice. North Canton has one of these on the hoover building! it's grey not sure if it still works

7/10 port, no tri tone

7/10 is the just interval for a tritone

Weird...But cool!

Christ that thing will loosen your fillings(provided you have any)!

was this siren made befor the thunbderbolt 1000/1000T/1003?

same thing as a dimished fifth. i can assure you it is.

i think thats the first rotating siren in the world

WHat is the siren beside it

Sounds like a weird Decot in a way.

where?

this siren is dissonant

that is a tri tone or in other words an augmented 4th.

Scariest tone ever O.O

This has a 25hp motor and why it rotates is beyond me. The thing really doesn't project anything out the horn in the front.

Ok, this thing sounds just plain weird.

Tritone (diminished fifth) They should have made a second cone: The existing cone is an INTAKE. Then make a larger OUTPUT projector. Why did you not film the police cars? 4 minutes of siren is more than enough, especially when it's now standing STILL again. Why did you not get closer and show rotor spinning inside stator as it spun down?

o:44

THAT has got to be the ugliest sounding siren I've ever heard!!!!! But I like it!!! :-)

lol