Siren concept: self-supercharged STH-10 (Modified 2T22)

[SirenMadness]

The STH-10 has a really big rotor, so finding something that can push more air in would be hard. Improving the rotor is probably the best thing you can do.

[Jpressman8]

I have an answer maybe and I think this is why the T-128 is so loud. Now this is just a theory so don't hold me to it if it sounds silly. Install a tubine compressor style blade to the intake side of the chopper and modify the housing to fit the change if needed. This would make the chopper a blower as well. This is how the T-128 design works. Dave Wherry from ASC had told me that they were developing a T-121 style siren using a T-135 72 VDC motor essentially making an omni directional T-128.
here is a T-128 picture.
http://viewmorepics.myspace.com/index.c ... D=34156060

This is the most efficient thing I can think of ,but you would be redesigning the whole siren. It is very intriguing to think of super charging a siren , but is grossly inefficient. Would make an interesting project though.

[markslimm]

if the blower was like a jet that not only compresses the air but pushes the air through the tube you could get more compression. If the chopper was a 6 port, close off three of the ports (it will still be kind of omnidirectional). Another far out idea is you could start off with a 9 inch tube and as the tube goes up it gets smaller and smaller until it reaches the intake. Just some ideas to put out there.

[Justin]

This is the most efficient thing I can think of ,but you would be redesigning the whole siren.

One would have to, to supercharge one without the legacy blower that the Thunderbolt and Hurricane had.

[SirenMadness]

This brings me back to an old design of mine.

http://airraidsirens.com/forums/viewtop ... w+impeller

It's still gonna take allot of power to move it, though.