A Cannon ‘Stun Gun’

Via: Defense News

Israeli Device Harnesses Shock Waves for Homeland Defense

Jan. 11, 2010 – 06:00AM | By BARBARA OPALL-ROME

TEL AVIV – An Israeli-developed shock wave cannon used by farmers to scare away crop-threatening birds could soon be available to police and homeland security forces around the world for nonlethal crowd control and perimeter defense.

Israel’s Ministry of Defense recently approved a license for ArmyTec, a Netanya, Israel, technology development advisory firm, to market military and paramilitary versions of the Thunder Generator cannon.

Developed and produced for the agricultural industry by PDT Agro, a small firm based in Herzliya, Israel, the system detonates a mixture of common liquefied petroleum (LPG), cooking gas and air to generate a series of loud, stunning shock waves.

Using a patented process involving Pulse Detonation Technology (PDT), the system feeds the gas-air mixture into one or more so-called impulse chambers or cannon barrels, where the burning fuel detonates and intensifies in force as it travels through the chamber, exiting in a rapid-fire succession of high-velocity shock bursts.

A small battery-powered control system – about twice the size of a pack of cigarettes – measures fuel pressure, temperature and flow rates while monitoring the continuous intake of the air-gas mixture.

According to company data, the system generates 60 to 100 bursts per minute, each traveling at about 2,000 meters per second and lasting up to 300 milliseconds.

The resulting shocks create a double deterrent to rioters and potential intruders, developers here say, by the extreme air pressure and sonic boom effect generated once the mixture propagates and expands through the air. One standard 12-kilogram LPG gas canister (retail cost: about $25) can produce up to 5,000 shock bursts.

Read more: here 

We really needed this to be invented…
-Moose

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