Clm air raid siren. By use of varying tones or binary patterns of sound different alert conditions can be signaled. The clm was a canadian warning siren made to alert those incase of a attack from the ussr. The clm siren is a very mysterious air raid siren indeed. This siren hasnt been run for 30 years and the motor needs a bit of work.
It is located in dashwood ontario. Its a single phase 220v siren. Full power run up of clm siren on sept. The chrysler air raid siren driven by a 331 cubic inch 54 liter chrysler hemi gasoline engine generates 138 db at 100 feet 30 m.
No one knows of its exact sound for certain. This is a test of my 1950s omni directional clm air raid siren. I am running it off. It is believed and i believe so too to sound much like the famous minor third sounding 3t22.
As of 2013 there is one known clm siren in operation. Despite its esthetic shortcomings and unhappy associations city of north vancouver councillors concluded monday that the citys cold war era air raid siren is a piece of history worth keeping. 120bd ms 590 motor driven metal horn industry boat alarm air raid siren us ship. Hand held camera at 30.
12v automotive air raid siren horn car truck vtg motor driven fire rescue u o4n9. Published on dec 12 2010 this is my clm air raid siren. 12v air raid siren horn tornado alarm motor driven police fire classy 110db new. The siren was mounted on a tower in victoria park in 1960 to warn residents in the event of a soviet nuclear attack.