Sonobuoy

Sonobuoys are small, expendable devices that are used for underwater acoustic sensing and communication. They are part of the supply class of Underwater Sound Equipment in the supply group Communication, Detection, and Coherent Radiation Equipment.

Sonobuoys are typically deployed from aircraft or ships and are designed to float on the water's surface while transmitting and receiving acoustic signals underwater. They are commonly used in military applications for anti-submarine warfare, as they can detect and track underwater targets such as submarines.

Sonobuoys consist of a hydrophone (an underwater microphone) and a transmitter that sends the collected acoustic data to a receiving station. They can be equipped with various sensors and technologies to detect and classify underwater sounds, including sonar signals, marine mammal vocalizations, and other acoustic phenomena.

The information gathered by sonobuoys is crucial for underwater surveillance, intelligence gathering, and situational awareness. They provide valuable data for military operations, scientific research, and environmental monitoring.

Overall, sonobuoys play a vital role in underwater sound equipment by enabling the detection, tracking, and communication of underwater targets and acoustic signals.