We believe that these doors, here on the bow and again on the stern, enclose a unique propulsion system... a magneto-hydrodynamic drive, or caterpillar, that would enable the sub to run virtually silent.

We believe that these doors, here on the bow and again on the stern, enclose a unique propulsion system... a magneto-hydrodynamic drive, or caterpillar, that would enable the sub to run virtually silent.

We believe that these doors, here on the bow and again on the stern, enclose a unique propulsion system-- a magneto-hydrodynamic drive, or caterpillar, that would enable the sub to run virtually silent.