The document discusses different types of missile guidance systems: 1) Infra-red homing missiles use heat radiation from the target for guidance and are fire-and-forget weapons that are very accurate and relatively inexpensive. 2) Semi-active radar homing missiles require the launching aircraft to track the target and reflect radiation back to the missile, making the launching aircraft vulnerable. 3) Active radar homing missiles track the target with their own radar, are fire-and-forget, have long range but are costly.

1. INFRA-RED HOMING HEAD FIRE AND FORGET PASSIVE GUIDANCE INFRA-RED HOMING (FIRE AND FORGET) MISSILE HOMES IN ON HEAT RADIATION FIRE AND FORGET THE HEAT HOMER IS A FIRE AND FORGET WEAPON, VERY ACCURATE AND RELATIVELY CHEAP.

2. SEMI-ACTIVE RADAR GUIDANCE RADAR OR LASER SEMI-ACTIVE RADAR AIRCRAFT TRACKS TARGET MISSILE HOMES IN TARGET- REFLECTED RADIATION TARGET THE SEMI-ACTIVE RADAR HOMER NEEDS TRACKING BY THE LAUNCHING AIRCRAFT TO HOME.THIS MAKES THE LAUNCHING FIGHTER VULNERABLE.

3. ACTIVE RADAR GUIDANCE ACTIVE RADAR (FIRE AND FORGET) MISSILE TRACKS TARGET WITH OWN RADAR TARGET THE ACTIVE RADAR HOMING IS A FIRE AND FORGET WEAPON, HAS LONGRANGE AND COSTLY.

4. RADAR HOMING HAZARDS THE DRAWBACK OF SEMI-ACTIVE RADAR HOMING IS NEED FOR TARGET ILLUMINATING BY THE FIGHTER’S RADAR. THE ATTACKER BECOMES VULNERABLE TO A FIRE AND FORGET MISSILE IN RETURN.