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  2. Coaming - Wikipedia

    en.wikipedia.org/wiki/Coaming

    Hatch coaming (bottom right) on a bugeye. Coaming is any vertical surface on a ship designed to deflect or prevent entry of water. It usually consists of a raised section of deck plating around an opening, such as a cargo hatch. Coamings also provide a frame onto which to fit a hatch cover.

  3. Livin Lite RV - Wikipedia

    en.wikipedia.org/wiki/Livin_Lite_RV

    The lightweight all aluminum frame, including the chassis, makes Livin Lite's towable products atypical in the RV industry. Even Airstream, with its aluminum shell and monocoque construction, utilizes a heavier steel chassis and builds its trailers on top of a wood floor. Floor rot and rusted frames are big problems in recreational vehicles ...

  4. Conning tower - Wikipedia

    en.wikipedia.org/wiki/Conning_tower

    As larger and larger submarines were made, and eventually fitted with periscopes, this protrusion grew into a small pressure-hull of its own, typically connected to the control room inside the boat's main pressure-hull via a watertight hatch to mitigate the risk of flooding if the viewports or periscopes were damaged. Thus, the conning tower ...

  5. Compartment (ship) - Wikipedia

    en.wikipedia.org/wiki/Compartment_(ship)

    A watertight hatch with the door dogs clearly visible Three types of doors are commonly used between compartments. A closed watertight door is structurally capable of withstanding the same pressures as the watertight bulkheads they penetrate, although such doors require frequent maintenance to maintain effective seals, and must, of course, be ...

  6. Hold (compartment) - Wikipedia

    en.wikipedia.org/wiki/Hold_(compartment)

    Most cargo hatches have a coaming, a raised edge around the hatch, to help keep out water. The term batten down the hatches is used prepare the ship for bad weather. This may included securing cargo hatch covers with wooden battens, to prevent water from entering from any angle. The term cargo hatch can also be a used for any deck opening ...

  7. Butterworth cover - Wikipedia

    en.wikipedia.org/wiki/Butterworth_Cover

    Butterworth hatches are not the main access hatches, but are the servicing hatches, and are generally closed with a metal cover plate with a gasket that is fastened to the deck by a number of bolts which stick up from the deck. Holes on the edges of the plate fit over these bolts and the cover is fastened down with nuts or dogs.