control section, the target detector section, the S&Adevice, the warhead section, and the rocket motorsection (fig. 3-9).The guidanceandcontrolsection consists of thefollowing three major assemblies:1. An infrared seeker assembly, which is used fordetecting the target.2. An electronic assembly, which is used forconverting detected target information to tracking andguidance command signals.3. A gas servo assembly (which consists of a gasgenerator, manifold, pistons, rocker arms, electricalsolenoids, and thermal battery), where the electricalguidance commands are converted to mechanicalmovement of the control fins.Four BSU-32/B control fins are mounted on theguidance and control section to provide aerodynamic liftand course alterations to the missile during free flight.They are movable surfaces that are electricallycontrolled and pneumatically operated by the gas servoassembly, The missile’s umbilical cable is also attachedto the guidance and control section. A shorting cap/dustcover must be installed on the umbilical connector at alltimes when the missile is not electrically connected tothe LAU-7 launcher. The umbilical cable provides thenecessary path for the exchange of electronic signalsbetween the missile and aircraft before missile launch.It also provides a connection to the launcher-mountedcooling gas supply, which prevents the electroniccomponents of the guidance and control section frombecoming overheated during operation before missilelaunch. The umbilical cable is sheared off at missilelaunch.The targetdetector(TD) is a narrow-beam,active-optical, proximity fuze system. The purpose ofthe TD is to detect the presence of an air target withinthe burst range of the missile warhead and generate anelectrical firing signal to the S&A device.Figure 3-9.—AIM-9 series Sidewinders guided missile (exploded view).3-12
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