Trout (SS-202) To get desperately needed supplies to our forces on Corregidor, the USS Trout jettisons her lead ballast and takes on as much ammunition as she can carry. After a perilous journey through off-shore mine fields, she delivers her cargo; but, unless the weight is made up, she will be unable to dive. So the sailors of the submarine USS Trout substitute 20 tons of gold and silver for ballast in order to submerge.