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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.
Very low IR transmission through liquid water and ice, which precludes all-weather operation. Even a few tens of micrometers of water on the lens, or in the atmosphere between the threat and the sensor, is sufficient to effectively blind both MWIR and LWIR sensors. Must compete with massive amounts of natural (sun) and man-made IR clutter.
On May 24, MIDAS 2 was orbited successfully, but the attitude control system failed. Some data was returned by the infrared sensor before the telemetry system also failed. Several planned experiments such as detection of flares on the ground and a Titan I missile test were abandoned. It remained in orbit until decaying in 1974.
The most common method of infrared countermeasure is deploying flares, as the heat produced by the flares creates hundreds of targets for the missile. Conventional man-portable air defense systems -launched missiles include an infrared sensor that is sensitive to heat, for example the heat emitted from an aircraft engine. The missile is ...
The Eiffel Tower in Paris, had an aerial lighthouse between 1947 and 1970, when the French aviation authority estimated that it was no longer needed to help aerial navigation, and set instead the standard warning lamps on top of the tower. In 2000 it was decided to uninstall the warning lamps and install again an aerial lighthouse visible by ...
A Royal Air Force Boeing E-3 Sentry over North Yorkshire. An airborne early warning and control (AEW&C) system is an airborne radar early warning system designed to detect aircraft, ships, vehicles, missiles and other incoming projectiles at long ranges, as well as performing command and control of the battlespace in aerial engagements by informing and directing friendly fighter and attack ...
The dominant aerial flare at the time was the Mk 24 Mod 0, developed by the US Navy. Reliability of the units, however, were in question, as was availability. Perhaps of greater concern was existing test data in 1966 that suggested pilot disorientation and flare placement were serious issues.
Alert or notification of an emergency in progress Position or location (or localization or pinpointing) of the party in distress. For example, a single aerial flare alerts observers to the existence of a vessel in distress somewhere in the general direction of the flare sighting on the horizon but extinguishes within one minute or less.
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