Sentry Siren port ratios

[NottaFoamer]

Hello all! I am trying to find all the port ratios for all the Sentry Sirens.
List of ones I want the ports for

3V8
3V8-H
7V8
10V
10V2T
15V2T
20V1T
14V
16V1T
40V2T

Thanks!

[CD_Siren]

3V8 - 8
3V8-H - 8
7V8 - 8
10V - 8
10V2T - 8/16
15V2T - 8/16
20V1T - 8/8
14V - 10
16V1T - 8/8
40V2T - 10/15 (Likely)

[NottaFoamer]

Thank you very much!

[SirensOfNewYork]

Interestingly enough you can order some Sentry sirens with custom port ratios. This 10V has 16 ports.
https://www.youtube.com/watch?v=Mm0m3wPQKqw

[Chicagosiren-hunters]

It should also be mentioned that most of these sirens can be ordered with custom ratios. A few 16-port 5V's and even a 10V have been found in the wild. So theoretically any siren can have either 8, 16, or have both choppers be the same.

Also, Huntsville, AL has a 40V1T, with 2 10-port rotors. Theoretically, one could be ordered with 2 15-port rotors as well.

[NottaFoamer]

Oh wow thank for all the info I never knew they could come in different ratios other then 16 port on the 5V!

[SirensOfNewYork]

Oh wow thank for all the info I never knew they could come in different ratios other then 16 port on the 3v8!

I think you mean the 5V.

[NottaFoamer]

16V1T - 8/8

Also are you sure the 16V1T is 8/8? because i've heard a 8/8 port sterling and it sounds nothing like the 16V

[championsiren]

16V1T - 8/8

Also are you sure the 16V1T is 8/8? because i've heard a 8/8 port sterling and it sounds nothing like the 16V

Sterlings were never 8/8 port. They only had 8 port Model "K" sirens.
The dual rotor Sterlings were either 8/16, 16/16, and I think 12/12 for the Little Giant.
Unless you custom ordered it to be 8/8, which I think no sterling vertical like that exists.

[Chicagosiren-hunters]

16V1T - 8/8

Also are you sure the 16V1T is 8/8? because i've heard a 8/8 port sterling and it sounds nothing like the 16V

Sterlings were never 8/8 port. They only had 8 port Model "K" sirens.
The dual rotor Sterlings were either 8/16, 16/16, and I think 12/12 for the Little Giant.
Unless you custom ordered it to be 8/8, which I think no sterling vertical like that exists.

all 16V1T/s are 8/8 port, hence the "1T" in the name. If it were to be 8/16, then it would be a 16V2T. 16V's sound different than a standard 8-port siren because these use two motors that, more often than not, spin at different speeds which creates dissonance.