What type of guidance system does the RAM use?

The RAM (Rolling Airframe Missile) utilizes a passive guidance system, which is based on the missile's ability to detect and track infrared signatures from the target. This type of system allows the missile to home in on heat sources, typically the exhaust plumes from enemy missiles or aircraft.

Passive guidance is advantageous because it does not emit any signals, making it less detectable to enemy countermeasures and providing a degree of stealth as it approaches the target. Unlike active systems that require the missile to send out signals for target acquisition, or semi-active where an external source illuminates the target, the RAM's capability to track purely based on the heat from the target distinguishes it within the context of missile guidance strategies.

Understanding this fundamental aspect of the RAM's operation helps in recognizing the operational tactics used in various air defense scenarios, particularly in engagements against threats like anti-ship cruise missiles.