Awesome recording

[Whelen Rules]

http://www.youtube.com/watch?v=F9pm5y6nRx4

Oh my gosh this scared me Sh*!less The singletone thunderbolts have power to them I think they are scarier sounding than dual tone Thunderbolt models

[Travis]

I think that the harmonics created in that windup are from the 1000, and 1000T spinning up simultaneously.

[Daniel]

That siren was really rotating fast. I could hear a Thunderbolt with a major third rotor (4/5) but the loudest siren sounded like a 2001. That wasn't the Thunderbolt in the background, was it? I didn't know they went that high.

[SirenMadness]

Though I'm seriously not interested in raids, that would be the perfect situation for such a sound. I can somehow imagine myself walking down an alley before hearing that!

[Nelso90]

I think that siren that you can see is a 2001. If you look really close, you can make out a round silhouette when it faces the camera.

[birdy]

Wow, I've never seen a siren rotate that fast.

If I didn't know better, and judging just by the profile, I'd say that was a hurricane.

[Whelen Rules]

It is a Thunderbolt according to the person who recorded it, there are several other videos of the same test one in alert and one growl test.

[Trey]

Believe me it is a Thunderbolt.

Don't know if you all can see it or not but I can tell its a T-bolt.

[RedAlpha]

That is a really awesome recording, I can only imagine hearing that during the cold war and expecting the worse.

[AlarmRepair]

Thats was bazzar....i'm a huge siren fan, Models 2,3,5,7 and Sd1o but those sirens sounding a little too spacy for even me... ya need to slow down that rotation speed scotty before the t bolt goes into a warp.