CNN CNNI Simulcast March 24, 2014 07:26:00
A ton and costs about $2.5 million. mike persell is the principal engineer. >> very stable, you get really good data almost all the time. >> reporter: why would it find something that others haven't been able to find? first of all, the torpedo shaped vehicle can reach depths up to 6,000 meters, or more than 3 1/2 miles below the surface, and survey wide swaths of the ocean floor, using side scan sonar. >> they fend a sound beam out to the side and it bounces off the sea floor and we get a reflection back. >> reporter: they call the process mowing the lawn because it works its assigned grid bac...