Description
Light to carry and easy to operate, the FIM-92 Stinger is a passive surface-to-air missile, shoulder-fired by a single operator, although officially it requires two. The FIM-92B missile can also be fired from the M-1097 Avenger and M6 Linebacker. The missile is also capable of being deployed from a Humvee Stinger rack, and can be used by paratroopers. A helicopter launched version exists called Air-to-Air Stinger (ATAS).
The missile is 1.52 m (60") long and 70 mm (2-3/4") in diameter with 10 cm fins. The missile itself weighs 10.1 kg (22 lbs.), while the missile with launcher weighs approximately 15.2 kg (33.5 pounds). The Stinger is launched by a small ejection motor that pushes it a safe distance from the operator before engaging the main two-stage solid-fuel sustainer, which accelerates it to a maximum speed of Mach 2.2 (750 m/s). The warhead is a 3 kg penetrating hit-to-kill warhead type with an impact fuze and a self-destruct timer.
To fire the missile, a BCU (Battery Coolant Unit) is inserted into the handguard. This shoots a stream of argon gas into the system, as well as a chemical energy charge that enables the acquisition indicators and missile to get power. The batteries are somewhat sensitive to abuse, with a limited amount of gas. Over time, and without proper maintenance, they can become unserviceable. The IFF system receives power from a rechargeable battery. Guidance to the target is initially through proportional navigation, then switches to another mode that directs the missile towards the target airframe instead of its exhaust plume.
There are three main variants in use: the Stinger basic, STINGER-Passive Optical Seeker Technique (POST), and STINGER-Reprogrammable Microprocessor (RMP).
The Stinger-RMP is so-called because of its ability to load a new set of software via ROM chip inserted in the grip at the depot. If this download to the missile fails during power-up, basic functionality runs off the on-board ROM. The four-processor RMP has 4 KB of RAM for each processor. Since the downloaded code runs from RAM, there is little space to spare, particularly for processors dedicated to seeker input processing and target analysis. The RMP has a dual-detector seeker: IR and UV. This allows it to distinguish targets from countermeasures much better than the Redeye, which was IR-only. While modern flares can have an IR signature that is closely matched to the launching aircraft's engine exhaust, there is a readily distinguishable difference in UV signature between flares and jet engines.
Read more about this topic: FIM-92 Stinger
Famous quotes containing the word description:
“Once a child has demonstrated his capacity for independent functioning in any area, his lapses into dependent behavior, even though temporary, make the mother feel that she is being taken advantage of....What only yesterday was a description of the child’s stage in life has become an indictment, a judgment.”
—Elaine Heffner (20th century)
“I was here first introduced to Joe.... He was a good-looking Indian, twenty-four years old, apparently of unmixed blood, short and stout, with a broad face and reddish complexion, and eyes, methinks, narrower and more turned up at the outer corners than ours, answering to the description of his race. Besides his underclothing, he wore a red flannel shirt, woolen pants, and a black Kossuth hat, the ordinary dress of the lumberman, and, to a considerable extent, of the Penobscot Indian.”
—Henry David Thoreau (1817–1862)
“A sound mind in a sound body, is a short, but full description of a happy state in this World: he that has these two, has little more to wish for; and he that wants either of them, will be little the better for anything else.”
—John Locke (1632–1704)