Category:Pnuematic Sirens: Difference between revisions
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(Created page with "A Pneumatic siren is a siren that is similar to an electromechanical siren ,except it has a rotor that has no vanes ,requiring an external air source to feed air to the choppe...") |
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A Pneumatic siren is a siren that is similar to an electromechanical siren ,except it has a rotor that has no vanes ,requiring an external air source to feed air to the chopper in order to be loud. The rotor can either be a disc with four slots ,or a | A Pneumatic siren is a siren that is similar to an electromechanical siren ,except it has a rotor that has no vanes ,requiring an external air source to feed air to the chopper in order to be loud. The rotor can either be a disc with four slots ,or a cylinder rotor like an electromechanical siren that has no vanes. | ||
[[Category:Sirens]] | [[Category:Sirens]] | ||
Latest revision as of 23:47, 3 May 2019
A Pneumatic siren is a siren that is similar to an electromechanical siren ,except it has a rotor that has no vanes ,requiring an external air source to feed air to the chopper in order to be loud. The rotor can either be a disc with four slots ,or a cylinder rotor like an electromechanical siren that has no vanes.
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