SDN:L22::TOOL1261
UnSpec sonobuoy
UnSpec sonobuoy
Unspecified sonobuoy
accepted
An expendable underwater listening device designed to be dropped from an aircraft or a ship and deploy upon water impact. Sonobuoys include hydrophone sensors which descend underwater and send detected signals to a radio transmitter mounted on an inflatable float which stays at the surface. The transmitter subsequently sends the signals to a monitoring unit for processing, analysis and classification.