What is the primary feature of the DICASS sonobuoy?

The primary feature of the DICASS (Directional Command Activated Sonobuoy System) sonobuoy is its inclusion of a directional hydrophone, which is designed specifically to determine the range and bearing of underwater sounds. This capability is crucial for submarine detection and tracking, as the directional hydrophone allows for the precise location of acoustic sources. By enabling the analysis of sound direction, the DICASS sonobuoy enhances the effectiveness of anti-submarine warfare operations, providing naval forces with vital information regarding the position and movement of potential underwater threats.

This focus on directionality differentiates the DICASS from other types of sonobuoys that may not have the capability to discern the direction of incoming sound. The directional hydrophone is essential for targeting specific acoustic signals, thus facilitating more effective operational responses in naval engagements.