And that's why we're continuing our side-scan sonar searches to make sure.

She also performed sonar searches for downed aircraft.

However against all odds, the wreckage was found within two days of the sonar search of the area commencing.

The submarine went deep as the enemy depth charge attack and prolonged sonar search continued.

Biologies were also hindering the sonar search, and increasing the Russians' options.

The spot was marked by a signaling device tethered 50 feet above the bottom at the time of the sonar search.

He reduced to six knots and, after an all-round sonar search, brought her up to periscope depth.

If our calculations are correct, I'm confident we can locate the ship within two or three days of sonar search.

Mancuso gave the order for an active sonar search personally.

The side-scan sonar search of the ocean floor ended earlier this week, officials said.