What is the main purpose of the Radar Warning Receiver (RWR)?

The primary purpose of the Radar Warning Receiver (RWR) is to provide audio and visual alerts regarding detected threat radar signals. RWR systems are designed to detect and analyze radar emissions from potential threats, such as surface-to-air missiles or enemy aircraft radar systems. Once a threat is detected, the RWR will alert the crew with distinct audio tones or visual displays indicating the nature of the threat, allowing them to react appropriately.

By providing timely alerts, the RWR enhances situational awareness and helps aircrew members make informed decisions during flight operations, particularly in combat or hostile environments. This capability is crucial for the safety and effectiveness of military aircraft, as it allows for evasive maneuvers or countermeasures to be implemented in response to identified threats.

Other choices do not align with the main function of an RWR. Enhancing communication with other aircraft pertains to systems focused on coordination and sharing information, whereas adjusting altitude or increasing speed involves flight controls and performance parameters unrelated to threat detection.