| 摘要 |
A submersible observation vessel having a transparent acrylic hull. The hull comprises a plurality of transparent acrylic cylinders, a plurality of seals to prevent leakage between the cylinders of the hull, a front hatch hinged on the first seal, and a bulk head having an aft hatch welded to the last seal. An integral cradle supports the vessel when on dry dock and provides a medium for lifting the vessel into and out of the water. |
