The Mars-12 microphone system was primary an underwater sensor, and an underwater communication system was also installed on all boats.

As the underwater sensors showed, the second squale dodged a head-on crash, swerving around to slam its tail into the monster's side.

The ship also has onboard early warning, navigation and fire control radars besides underwater sensors and integrated communication and electronic warfare systems.

Triggering the underwater sensors, Kasim made a record of the mass of the beast, then began to scan his data banks for a match.

The two ships, K32 and K33, were delivered with underwater and surface/air sensors fully integrated.

"Don't you think that they have underwater sensors?"

The information that is being continuously compiled by underwater sensors is used to form models to make predictions about the ocean and underwater weather for both the near and long term.

The ping of the sonar reverberated throughout the hull as she searched the water ahead with her underwater sensors, trying desperately to generate an active return off any mines ahead.

The first experiment was to detect any underwater sensors.

To survey the ocean bottom, the Whiting, which bristles with the latest sonar and computer gear, tows behind her an underwater sensor, called a "fish," at a predetermined speed and depth.