Folding Light Acoustic System for Helicopters (FLASH)

The Folding Light Acoustic System for Helicopters (FLASH) is a dipping sonar that features a common airborne processing machine. It can detect conventional or nuclear submarines in deep or shallow water, operating at a low frequency.

The submersible unit consists of an upper body with a folding low-frequency receive array with 12 arms and a lower body with the stacked piezo-electric ceramic transducer rings. Pulse shape and power are managed by the operator to achieve optimum...