Send In Suggestions to ATI, Federal Signal, Whelen, etc.

[Daniel]

All I really want is a 2T22 with 36" rotors and a DC motor. As for the 2001's, I'd reduce the number of ports from 12 to 7.

[jerrylovessirens]

Make a omni-directional siren which has the roots blower hooked up -directly- onto the intake port, would make for a very high pressure(and volume) air pulse go through the rotor, having more air moved in a amount of time.

Make it have a large (20-30in) diameter rotor.

Make it a nice sounding dual tone 4/5, so it will sound like an 1000t, but with a huge rotor.

a 20 hp motor should do it

im guessing it should make it to the upper 30's db-wise

[StonedChipmunk]

OK, everything so far (to my knowledge) has been added to the list (the first post in this topic). I'm planning to send out the email this Sunday (so the respective companies receive it Monday morning) unless anyone has thoughts otherwise. So, post, post post!

[AllSafe]

No one wants a siren with a Roots blower anymore. It is too much trouble. They have to be constantly maintained to ensure that dust and dirt in the blower oil doesn't ruin the blower.

[Conky 2000]

I'd like for FS to make the Tbolt again. But this time, try to make it not so poorly built. As for ATI, try some tones like Whelen's so that people can recognize that it's an actual siren, not a printer going bad. i think that it was a wise move to make recordings of those STL-10's and use them on your sirens. If the Tbolt is put back into production, try a 5/8 or 10/12 porter. Maybe you could even do a triple tone, like a 4/6/8 or a 8/10/12!

[SirenMadness]

...or 10/12 porter.

That's the same thing as a T-bolt with a five-to-six ratio, and that chopper would have to be big to accommodate so many ports.

Make an ATI have one of those tones from the SafetyCom site!

[holler]

Maybe instead of a roots blower they could use a large fan, such as a grain bin blower. It should be able to move more than enough air. Using an oil filled crankcase blower on a siren is highly impractical anyway since

A.most people don't have enough sense to take care of them
B. The oil would be quickly diluted with water from condensation, neccesitating frequent oil changes.

How about a screw-style supercharger?

Tell ATI to quit making sirens period.

[AllSafe]

How about a screw-style supercharger?

That IS a Roots blower.

[Rory Buszka]

A screw-style supercharger would have the same problems as a Roots blower. At the ends of both interlocking screw parts, there are still drive gears in an oil-filled gearbox. My blower of choice for a new supercharged siren would be the regenerative-type blower. And for a siren that is supercharged, the chopper should be as compact as possible because it isn't responsible for generating any of the airflow.

I've seen Whelen and ATI siren drivers side by side, and there's really no comparison. Whelen's drivers weigh easily twice what ATI's drivers do, and have a larger diaphragm.

[jerrylovessirens]

Maybe having impeller blades on the rotor??

If the T-bolt was to be re-introduced, it would be great to make it an all DC-powered one. The 2001's rotator box would work perfect, and a impeller-type blower would do the trick. The blower box could then be much smaller, and it could be mounted vertical like the hurricane's.

A roots blower is better, but in this disposable world, everyone thinks everything's maintenance-free.

Triple tone would be a great innovation!