In this Nov. 8, 2012 photo provided by Navantia, Manuel Filgueiras, center, former Cartagena shipyards director, speaks next to the motor of one of the S-80 class submarines in Cartagena, Spain. The

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In this Nov. 8, 2012 photo provided by Navantia, Manuel Filgueiras, center, former Cartagena shipyards director, speaks next to the motor of one of the S-80 class submarines in Cartagena, Spain. The Isaac Peral, a new, Spanish-designed submarine is more than 70 tons too heavy, and officials fear if it goes out to sea, it will not be able to surface. The first in a new class of diesel-electric submarines, the Isaac Peral,was nearly completed when engineers discovered the problem. A U.S. Navy contractor in Connecticut, Electric Boat, has signed a deal to help the Spanish Defense Ministry find ways to slim down the 2,200-ton submarine. (AP Photo/ Navantia) less 

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Associated Press
Wed, Jun 5, 2013 9:06 PM EDT