By John McDevitt

By John McDevitt

PHILADELPHIA (CBS) — A robot submarine may soon be deployed to help in the search of the missing Malaysian jetliner in the Indian Ocean, but what about sophisticated manned subs with sonar capability?

KYW’s John McDevitt spoke with a local expert on submarines and their limitations in the search for a black box.

A sophisticated manned standard modern submarine has a crush depth of 2,000 feet.

Jesse Lebovics is the Historic Ships Manager at the Independence Seaport Museum at Penn’s Landing says the black box is expected to be much deeper than that.

“The possible locations of this black box are between 2,900 feet and as much as 10,000 feet which is so far below of the potential that these submarines to reach that it really make it difficult for them,” Lebovics said.

He says the search area is rocky and sonar could send back dozens and dozens of false readings.

“Each one of which would have to be independently investigated,” he said.

Lebovics says robotic submarines which are attached by a cord to a ship on the surface can go deeper than a manned sub, but have duration restrictions due to battery power and limited viability.

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