Without ever even holding sonar contact once in this theater.

The large submarine turned slowly from east to north and began its pursuit of the newest sonar contact.

And the faster the Louisiana goes, the harder it is to hear the sonar contacts around her.

The question Florida's captain had just asked concerned whether or not the sonar contact had been identified.

He had yet to establish sonar contact with Florida.

Four hundred feet below the surface, Cheyenne picked up her next sonar contact.

As she did so, the bearing to all of her sonar contacts changed to the right.

At 1739 good sonar contact was established and a depth charge attack begun.

Diesel fuel already covered the surface of the sea, and sonar contact slowly faded.

Greer made sonar contact, and pursued the U-652 at close range.