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  2. Pontoon boat - Wikipedia

    en.wikipedia.org/wiki/Pontoon_boat

    Pontoon boat. A pontoon boat is a flattish boat that relies on floats to remain buoyant. These pontoons (also called tubes) contain much reserve buoyancy and allow designers to create large deck plans fitted with a variety of accommodations including expansive lounge areas, stand-up bars, and sun pads. More horsepower is now able to be applied ...

  3. Abraham Lincoln's patent - Wikipedia

    en.wikipedia.org/wiki/Abraham_Lincoln's_patent

    May 22, 1849. Location. Illinois. Abraham Lincoln's patent relates to an invention to buoy and lift boats over shoals and obstructions in a river. Abraham Lincoln conceived the invention when on two occasions the boat on which he traveled got hung up on obstructions. Lincoln's device was composed of large bellows attached to the sides of a boat ...

  4. 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. In many parts of the world, pontoon boats are used as small vehicle ferries to cross rivers and lakes. An anchored raft-like platform used for diving, often referred to as a pontoon

  5. Inflatable boat - Wikipedia

    en.wikipedia.org/wiki/Inflatable_boat

    An inflatable boat is a lightweight boat constructed with its sides and bow made of flexible tubes containing pressurised gas. For smaller boats, the floor and hull are often flexible, while for boats longer than 3 metres (9.8 ft), the floor typically consists of three to five rigid plywood or aluminium sheets fixed between the tubes, but not ...

  6. Mulberry harbours - Wikipedia

    en.wikipedia.org/wiki/Mulberry_harbours

    The Mulberry harbours were two temporary portable harbours developed by the British Admiralty and War Office during the Second World War to facilitate the rapid offloading of cargo onto beaches during the Allied invasion of Normandy in June 1944. They were designed in 1942 then built in under a year in great secrecy; within hours of the Allies ...

  7. Pontoon bridge - Wikipedia

    en.wikipedia.org/wiki/Pontoon_bridge

    A pontoon bridge (or ponton bridge), also known as a floating bridge, uses floats or shallow-draft boats to support a continuous deck for pedestrian and vehicle travel. The buoyancy of the supports limits the maximum load that they can carry. Most pontoon bridges are temporary and used in wartime and civil emergencies.

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