water cannon កាណុងបាញ់ទឹក

រថយន្តកាណុងបាញ់ទឹក មានសមត្ថភាពបាញ់ចម្ងាយ ២៨ មែត្រ បរិមាណទឹក ១០ មែត្រគីប
A water cannon is a device that shoots a high-velocity stream of water. Typically, a water cannon can deliver a large volume of water, often over dozens of meters. They are used in firefighting, large vehicle washing, riot control, and mining. Most water cannons fall under the category of a fire monitor.

1. ពន្លត់អគ្គីភ័យ Water cannons were first devised for use on fireboats. Extinguishing fires on boats and buildings near the water was much more difficult and dangerous before fireboats were invented. The first fireboat deployed in Los Angeles was commissioned on 1 August 1919. The first fireboat in New York City was Marine 1, deployed 1 February 1891. There may have been other fireboats elsewhere even earlier. Fire trucks deliver water with much the same force and volume as water cannons, and have even been used in riot control situations, but are rarely referred to as water cannons outside this context.
2. ទប់ទល់កុប្បកម្ម បាតុកម្ម Riot control The first truck-mounted water cannon was used for riot control in Germany in the beginning of the 1930s. The most modern versions do not expose the operator to the riot, and are controlled remotely from within the vehicle by a joystick. The German-built WaWe 10.000 can carry 10,000 litres (2,200 imp gal) of water, which can deploy water in all directions via three cannons, all of which are remotely controlled from inside the vehicle by a joystick. The vehicle has two forward cannons with a delivery rate of 20 litres per second (260 imp gal/min), and one rear cannon with a delivery rate of 15 litres per second (200 imp gal/min)[citation needed] Water cannons designed for riot control are still made in the United States and the United Kingdom, but most products are exported, particularly to Africa and parts of Asia such as Indonesia.

Alternative payload

1. Dye In 1997, pink dye was reportedly added to the water used by South Korean and Indonesian police to disperse a riot.[13] The implication is that they might use this mark to make it easier to arrest rioters later. The United Kingdom, which had sold the water cannon to Indonesia, condemned this practice (although the Royal Ulster Constabulary had used a water cannon with purple dye during The Troubles in Northern Ireland) but later approved the sale of further water cannons to them. Most modern water cannons are also capable of adding tear gas to the stream.
2. Electrified water cannon In 2004, Jaycor Tactical Systems was experimenting with additives (salt and additives to reduce the breakup of the stream into droplets) that would allow electricity to be conducted through water. They have demonstrated delivery from a distance of up to twenty feet (6 m), but have not yet tested the device on people.
3. Although referred to as an electrified water cannon, this experiment involved a water jet much less powerful than a water cannon.