text: Short-Range Air Defense System Descriptions
  Figure A-2. Avenger
  MAN-PORTABLE STINGER
  A-7. Stinger (figure A-3 on page A-4) is a shoulder-fired, infrared radiation homing, heat-seeking, guided
  missile system that tracks to the target through proportional navigation. It is designed to counter low-level
  fixed and rotary-wing aircraft and UASs. The Stinger components are a missile housed in a fiberglass launch
  tube; a permanently attached, hinged, open sight assembly located atop the launch tube, a grip stock with an
  identification friend or foe antenna; and a battery coolant unit. For more information on the Stinger system,
  see ATP 3-01.18.
  A-8. To assist the gunner in aircraft identification, the identification friend or foe antenna is unfolded and
  the identification friend or foe cable is connected. Interrogation of aircraft is accomplished by pressing the
  interrogate switch located at the rear of the grip stock. Stinger is a "fire-and-forget" system. This means that,
  immediately after firing, the gunner removes and discards the coolant unit from its receptacle, folds and stows
  the identification friend or foe antenna, unlatches the latch mechanism located at the forward end of the grip
  stock, and removes the grip stock from the launch tube. The gunner can now ready another missile round for