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2. Float (nautical) - Wikipedia

   en.wikipedia.org/wiki/Float_(nautical)

   A pontoon boat is a flattish boat that relies on nautical floats for buoyancy. Common boat designs are a catamaran with two pontoons, or a trimaran with three. [2] In many parts of the world, pontoon boats are used as small vehicle ferries to cross rivers and lakes. [3] An anchored raft-like platform used for diving, often referred to as a pontoon

3. Pontoon bridge - Wikipedia

   en.wikipedia.org/wiki/Pontoon_bridge

   A pontoon bridge is a collection of specialized, shallow draft boats or floats, connected together to cross a river or canal, with a track or deck attached on top. The water buoyancy supports the boats, limiting the maximum load to the total and point buoyancy of the pontoons or boats. [ 2 ]

4. Rigid inflatable boat - Wikipedia

   en.wikipedia.org/wiki/Rigid_inflatable_boat

   RNLI inshore rescue boat during Falmouth Lifeboat Day, August 2006. A rigid inflatable boat (RIB), also rigid-hull inflatable boat or rigid-hulled inflatable boat (RHIB), is a lightweight but high-performance and high-capacity boat constructed with a rigid hull bottom joined to side-forming air tubes that are inflated with air to a high pressure so as to give the sides resilient rigidity along ...

5. 42-volt electrical system - Wikipedia

   en.wikipedia.org/wiki/42-volt_electrical_system

   Applications that once were thought to require higher voltages, such as electrical power steering, were subsequently achieved with 12-volt systems. [1] In the late 2000s, 42-volt electrical components were used in only a few automotive applications, since incandescent light bulbs work well at 12 volts and switching of a 42-volt circuit is more ...

6. Ballast tank - Wikipedia

   en.wikipedia.org/wiki/Ballast_tank

   Cross section of a vessel with a single ballast tank at the bottom. A ballast tank is a compartment within a boat, ship or other floating structure that holds water, which is used as ballast to provide hydrostatic stability for a vessel, to reduce or control buoyancy, as in a submarine, to correct trim or list, to provide a more even load distribution along the hull to reduce structural ...

7. LCVP (United States) - Wikipedia

   en.wikipedia.org/wiki/LCVP_(United_States)

   The Higgins boat could hold either a 36-man platoon, a jeep and a 12-man squad, or 8,000 lb (3.6 t) of cargo. Its shallow draft (3 feet aft and 2 feet, 2 inches forward) enabled it to run up onto the shoreline, and a semi-tunnel built into its hull protected the propeller from sand and other debris.