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Flares may be ground pyrotechnics, projectile pyrotechnics, or parachute-suspended to provide maximum illumination time over a large area. Projectile pyrotechnics may be dropped from aircraft, fired from rocket or artillery , or deployed by flare guns or handheld percussive tubes.
A modern LUU-2B flare at 1,000 feet altitude illuminates the ground at 5 lux in a radius of 1500 feet. Burn time is 4–5 minutes. The flare is 36 inches long, 4.9 inches in diameter, and weighs about 30 pounds. A similar design called LUU-19B can provide covert illumination in the near-infrared (IR) spectrum with virtually no visual signature.
Burning a red flare (either hand-held or aerial parachute flare) [2] Launching distress rockets [2] Emitting orange smoke from a canister [2] Showing flames on the vessel (as from a burning tar barrel, oil barrel, etc.) [2] Raising and lowering slowly and repeatedly both arms outstretched to each side [2]
This page was last edited on 20 June 2023, at 15:56 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
The purpose of the Fallschirm Leuchtpatrone was for battlefield illumination with a secondary signal flare role. The projectile had a light alloy shell case, with a threaded insert in the base for a percussion cap, inside the case was a propelling charge, delay fuze, parachute, illumination star, and bakelite nose cone. When fired the ...
Blue light. Blue light is an archaic signal, the progenitor of modern pyrotechnic flares.Blue light consists of a loose, chemical composition burned in an open, hand-held hemispherical wooden cup, and so is more akin to the flashpan signals of the Admiral Nelson era than the modern, encased signal flares, which are often launched by mortar or rifle and suspended by parachute.
Solar flares are intense, localized bursts of electromagnetic radiation from the sun, releasing immense energy over short periods. These events impact Earth's upper atmosphere and can occasionally ...
A flare or decoy flare is an aerial infrared countermeasure used by an aircraft to counter an infrared homing ("heat-seeking") surface-to-air missile or air-to-air missile. Flares are commonly composed of a pyrotechnic composition based on magnesium or another hot-burning metal, with burning temperature equal to or hotter than engine exhaust.
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