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CHRYSLER AIR-RAID SIREN

The Chrysler Air-Raid Siren is a warning device capable of producing a tone of great intensity and carrying ability.

The power is furnished by a Chrysler 8-cylinder -industrial engine. This engine drives the siren horn unit which consists of a blower and a high speed six-blade rotary chopper.

The sound is created by the chopper interrupting the flow of air delivered by the blower as it passes through the six ports into the horns. The velocity of air is approximately 33,000 feet per minute, the equivalent of 375 miles per hour.

This manual has been prepared for the guidance of those who operate and service this unit. The mechanical adjustments referred to should be handled by a competent mechanic.

A thorough understanding of the contents of this manual is necessary to every operator. Study it carefully.

If further information concerning the siren unit is desired, communicate with the Chrysler Corporation, Industrial Engine Division, 12,200 East Jefferson Avenue, Detroit, Michigan.

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