Accession Number:

AD0735002

Title:

Humane Crowd Dispersal: Pulsed Jet Water Cannon

Descriptive Note:

Final rept.

Corporate Author:

EXOTECH INC GAITHERSBURG MD

Personal Author(s):

Report Date:

1971-11-01

Pagination or Media Count:

28.0

Abstract:

An experimental water jet system was developed and tested as a humane method of crowd control. Gas pressure was released behind a column of water to eject it through a nozzle as a pulse instead of a steady stream. Several nozzle diameters, water quantities, and pressures were tested. The best effectiveness was achieved with a 1 38-inch diameter nozzle, 1 12 gallons of water, and 175 pounds per square inch. The total range was 150 feet, and the range at which people would be unwilling to approach closer was 90 feet. The experimental system was capable of producing only single shots.

Subject Categories:

  • Sociology and Law

Distribution Statement:

APPROVED FOR PUBLIC RELEASE