Category:Pnuematic Sirens

From airraidsirens.net, the Internet's premiere site for siren information and discussion
Revision as of 23:47, 3 May 2019 by Duderocks5539 (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

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.

This category currently contains no pages or media.